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Development of high temperature superconductor terahertz emitter excited by ultrashort laser pulses

Research Project

Project/Area Number 08405028
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 電子デバイス・機器工学
Research InstitutionOsaka University

Principal Investigator

HANGYO Masanori  Research Center for Superconducting Materials and Electronics, Osaka University, Professor, 超伝導エレクトロニクス研究センター, 教授 (10144429)

Co-Investigator(Kenkyū-buntansha) MURAKAMI Hironaru  Department of Electronics, Faculty of Engineering, Osaka University, Research Associate, 工学研究科, 助手 (30219901)
AOKI Ryozo  Department of Electronics, Faculty of Engineering, Osaka University, Professor, 工学研究科, 教授 (70037175)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥36,300,000 (Direct Cost: ¥36,300,000)
Fiscal Year 1998: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1997: ¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1996: ¥28,700,000 (Direct Cost: ¥28,700,000)
Keywordshigh temperature superconductor / terahertz electromagnetic waves / ultrashort laser pulses / ultrafast optica response / supercurrent visalization system / superconducting optical flux trap memory / time domain terahertz spectroscopy / subterahertz wave / 高温超伝導体 / 超高速光応答 / テラヘルツ波 / 超短レーザーパルス / Y_<0.7>Pr_<0.3>Ba_2Cu_3O_<7-δ> / 超伝導電流分布 / 時間領域テラヘルツ分光法 / 超伝導発振器 / 磁束 / 超伝導光磁束トラップメモリ / フェムト秒レーザー / 非平衡超伝導
Research Abstract

The aim of this project is to develop a highly efficient terahertz emitter made of high temperature superconductors based on the effect of terahertz radiation excited by femtosecond laser pulses. To clarify the radiation characteristics and to apply the terahertz radiation to various fields are also the purposes of the project The following results are obtained by the project.
1. By the improvement of the high-Tc superconductor thin films and the antenna structure, the radiation power reached 10 μW with 100 mW excitation. This radiation power competes with that from the semiconductor photoswitches, and therefore the main purpose of the project is attained.
2. By the detailed measurement of the characteristics of the radiation, we proposed the radiation mechanism based on the ultrafast supercurrent modulation.
3. We proposed and demonstrated the supercurrent visualization by the laser excited terahertz radiation.
4. A new superconducting optical magnetic flux trap memory is proposed and demonstrated.
5. A very cheap subterahertz spectroscopic system using a CW multimode laser diode and photoswitch is developed.
6. We made a time domain terahertz spectroscopic system and applied it to the characterization of semiconductors.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report

Research Products

(135 results)

All Other

All Publications

  • [Publications] M. Hangyo: "Terahertz radiation from superconducting Yba_2Cu_3O_<7-δ> thing films excited by femtosecond optical pulses"Appl. Phys. Lett.. 69. 2122-2124 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Ultrashort electromagnetic pulse radiation from YBCO thin films excited by femtosecond laser pulse"Jpn. J. Appl. Phys.. 35. 2624-2632 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tani: "Enhanced subpicosecond electromagnetic pulse radiation from YBCO thin-films bow-tie antennas"Jpn. J. Appl. Phys.. 35. L1184-L1187 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Subpicosecond electromagnetic pulse generation from high-T_c superconducting thin films by femtosecond laser pulse excitation"Czech. J. Phys. 46,Suppl. 2767-2768 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Novel dynamic diagnosis of femtosecond time-transient nonequilbrium state in optically excited YBCO thin films"Czech. J. Phys. 46,Suppl. 1095-1096 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Terahertz emission study of femtosecond time-transient nonequilibrium state in optically excited Yba_2Cu_3O_<7-δ> thin films"Jpn. J. Appl. Phys.. 36. L1578-L1581 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "超伝導オプトエレクトロニクス ―超伝導エレクトロニクスとオプトエレクトロニクスの融合"生産と技術. 49. 60-62 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "THz emission from high-T_csuperconductors by optical pulse excitation"IEEE Trans. on Appl. Supercond.. 7. 3730-3733 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Ultrafast photoexcited quasiparticle dynamics in YBCO films observed by THz emission"IEEE Trans. on Appl Supercond.. 7. 2909-2913 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Enhanced THz radiation from YBCO thin film bow-tie antennas with hyper-hemispherical MgO lens"IEEE Trans. on Appl Supercond.. 7. 2913-2916 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Terahertz radiation from high-T_c supercondcsthing films excited by femtosecond optical pulses"Proc. SPIE. 2999. 358-370 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Novel terahertz radiation from flux-trapped Yba_2Cu_3O_<7-δ> thin films excited by femtosecond laser pulses"Jpn. J. Appl. Phys.. 36. L93-L95 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tani: "Emission properties of YBaCuO-film photoswitches as terahertz radiation source"Jpn. J. Appl. Phys.. 36. 1984-1989 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "光パルス励起による高温超伝導薄膜からのテラヘルツ電磁波の発生"日本物理学会誌. 52. 445-449 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Ultrafast optical response and terahertz radiation from high-T_c superconductor"IEICE Trans. Commun.. E80-C. 1282-1290 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Shikii: "Enhanced THz radiation from YBCO using a-Axis oriented thin films excited by ultrashort optical pulses"IEICE Trans.Commun.. E80-C. 1297-1303 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Control of magnetic flux in a YBCO thin film loop using femtosecond laser pulses"Appl. Phys. Lett.. 71. 2364-2366 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tani: "Multiple-frequency generation of sub-terahertz radiation by multi-mode L.D. excitation of photoconductive antenna"IEEE Microwave and Guided Wave Lett.. 7. 282-284 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 斗内政吉: "酸化物高温超電導体の超高速光応答とテラヘルツ電磁波の発生"FEDジャーナル. 8. 34-38 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Terahertz radiation from YBCO thin films by optical pulse excitation"Advances in Superconductivity. X. 1205-1210 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Shikii: "Temperature dependence of THz radiaion from flux-trapped thin films excited by ultrashort optical pulses"Advances in Superconductivity. X. 1231-1234 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "光パルス励起による高温超伝導体からのテラヘルツ電磁波放射とその応用"telecom FRONTIER. 20. 30-42 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "高温超伝導体からのテラヘルツ電磁波発生"レーザー研究. 20. 536-540 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "超伝導電流を光励起テラヘルツ電磁波放射で見る"オプトニューズ. 6. 35-36 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 斗内政吉: "超伝導電流の高速光変調とテラヘルツ電磁波放射"信学技報. LQE98. 69-74 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 山下将嗣: "テラヘルツ電磁波放射マッピングによる超伝導電流分布の可視化"信学技報. LQE98. 75-80 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Visualization of optically controlled magnetic flux in Yba_2Cu_3O_<7-δ> thin film loop by terahertz radiayion imaging"Jpn.J.Appl. Phys.. 37. L1301-L1303 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Superconductive optoelectronics"FED Journal. 9,Suppl.2. 41-48 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "超伝導光-テラヘルツ波変換素子の開発とその室内通信応用"生産と技術. 51. 229-231 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Shikii: "Observation of supercurrent distribution in Yba_2Cu_3O_<7-δ> thin films using THz radiation excited with femtosecond laser pulses"Appl. Phys.Lett.. 74. 1317-1319 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] O. Morikawa: "Sub-THz emission properties of photoconductive antennas excited with multimode laser diode"Jpn.J.Appl. Phys.. 38. 1388-1389 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Ion-beam milling of YBCO thin films and their charasterization by time-resolved pump-probe method"IEEE Trans. on Appl. Supercond.. 9. 1952-1955 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo: "Observation of supercurrent distribution in YBCO thin flim debvices by photoexcited THz radiation"IEEE Trans. on Appl. Supercond.. 9. 3038-3041 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Tonouchi: "Detection and storage of femtosecond laser pulse signals by optical magnetic-flux-generation in a YBCO thin flim loop"IEEE Trans. onAppl. Supercond.. 9. 4467-4470 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 森本雅彦: "ワイヤ-グリットを用いたテラヘルツ電磁波放射偏光パタ-ンの計測"信学技報. CSE99. 75-80 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 本昭宏: "アンチドットを形成したYBCO薄膜における超伝導電流分布の観測"信学技報. CSE99. 13-18 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Nashima: "Femtosecond optical pulse response of Y_<0.7>Pr_<0.3>Ba_2Cu_3O_<7-δ> thin films"Advances in Superconductivity. XI. 93-96 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamashita: "Evaluation of supercurrent distribution by terahertz radiation mapping"Advances in Superconductivity. XI. 189-192 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H. Saijo: "Magnetic flux generation in YBCO thin flim loops by optical excitation under magnetic field"Advances in Superconductiviry. XI. 199-202 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Shikita: "Controllability and stability of magnetic flux in YBCO thin film loop trapped by optical induced current imbalance"Advances in Superconductivity. XI. 215-218 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Kiwa: "Magnetic flux trap in ion implanted YBCO thin films diagonosed by terahertz mapping"Advances in Superconductivity. XI. 219-222 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Kondo: "A novel two-dimensional mapping system for supercurrent distribution using femtosecond laser pulses"Advances in Superconductivity. XI. 1285-1288 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Magnetic flux quanta in YBCO thin film loop controlled with femtosecond optical pulses"Advances in Superconductivity. XI. 1293-1296 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi: "Design of superconductive optical flux trap memory for femtosecond laser pulse detection"Advances in Superconductivity. XI. 1297-1300 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] O. Morikawa: "Sub-THz spectroscopic system using a multimode laser diode and photoconductive antenna"Appl. Phys. Lett.. 75. 3772-3774 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ch. Ludwig: "Electrodynamic c-axis properties of Yba_2Cu_3O_<7-δ> films in the THz frequency regime"Phys. Status Solidi. 213. 405-413 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Konda: "Terahertz radiation from (111)InAs surface using 1.55 μm femtosecond laser pulses"Jpn. J. Appl. Phys.. 38. L1035-L1037 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "光伝導スイッチによるTHz波の発生"応用物理. 68. 1390-1391 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Terahertz radiation from superconducting YbaィイD22ィエD2CuィイD23ィエD2OィイD27-δィエD2 thin films excited by femtosecond optical pulses"Appl. Phys. Lett.. 69. 2124-2124 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Ultrashort electromagnetic pulse radiation from YBCO thin films excited by femtosecond laser pulse"Japan J. Appl. Phys.. 35. 2624-2632 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tani et al.: "Enhanced subpicosecond electromagnetic pulse radiation from YBCO thin-films bow-tie antennas"Japan J. Appl. Phys.. 35. L1184-L1185 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Subpicosecond electromagnetic pulse generation from high-Tc superconducting thin films by femtosecond laser pulse excitation"Czech. J. Phys.. 46 Suppl.. 2767-2768 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Novel dynamic diagnosis of femtosecond time-transient nonequilbnum state in optically excited YBCO thin films"Czech. J. Phys.. 46 Suppl.. 1095-1096 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Terahertz emission study of femtosecond time-transient nonequilibrium state in optically excited YbaィイD22ィエD2CuィイD23ィエD2OィイD27-δィエD2 thin films"Jpn. J. Appl. Phys.. 36. L1578-L1581 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "THz emission from high-Tc superconductors by optical pulse excitation"IEEE Trans. On Appl. Supercond.. 7. 3730-3733 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Ultrafast photoexcited quasiparticle dynamics in YBCO films observed by THz emission"IEEE Trans. On Appl. Supercond.. 7. 2909-2913 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Enhanced THz radiation from YBCO thin film bow-tie antennas with hyper-hemispherical MgO lens"IEEE Trans. On Appl. Supercond.. 7. 2913-2916 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Hangyo: "Terahertz radiation from high-Tc superconducting films excited by femtosecond optical pulses"Proc. SPIE. 2999. 358-370 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Novel terahertz radiation from flux-trapped YbaィイD22ィエD2CuィイD23ィエD2OィイD27-δィエD2 thin films excited by femtosecond laser pulses"Jpn. J. Appl. Phys.. 36. L93-L95 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tani et al.: "Emission properties of YBaCuO-film photoswitches as terahertz radiation source"Jpn. J. Appl. Phys.. 36. 1984-1989 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Ultrafast optical response and terahertz radiation from high-Tc superconductor"IEICE Trans. Commun.. E80-C. 1282-1290 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Shikii et al.: "Enhanced THz radiation from YBCO using a-Axis oriented thin films excited by ultrashort optical pulses"IEICE Trans. Commun.. E80-C. 1297-1303 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Control of magnetic flux in a YBCO thin film loop using femtosecond laser pulses"Appl. Phys. Lett.. 71. 2364-2366 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tani et al.: "Multiple-frequency generation of sub-terahertz radiation by multi-mode L.D. excitation of photoconductive antenna"IEEE Microwave and Guided Wave Lett.. 7. 282-284 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Terahertz radiation from YBCO thin films by optical pulse excitation"Advances in Superconductivity. X. 1205-1210 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Shikii et al.: "Temperature dependence of THz radiation from flux-trapped thin films excited by ultrashort optical pulses"Advances in Superconductivity. X. 1231-1234 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Visualization of optically controlled magnetic flux in YBa2Cu3O7-δ thin film loop by terahertz radiation imaging"Japan J. Appl. Phys.. 37. L1301-L1303 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Superconductive optoelectronics"FED Journal. 9. 41-48 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Shikii et al.: "Observation of supercurrent distribution in YbaィイD22ィエD2CuィイD23ィエD2OィイD27-δィエD2 thin films using THz radiation excited with femtosecond laser pulses"Appl. Phys. Lett.. 74. 1317-1319 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] O. Morikawa et al.: "Sub-THz emission properties of photoconductive antennas excited with multimode laser diode"Japan J. Appl. Phys.. 38. 1388-1389 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Ion-beam milling of YBCO thin films and their charasterization by time-resolved pump-probe method"IEEE Trans. On Appl. Supercond.. 9. 1952-1955 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Hangyo et al.: "Observation of supercurrent distribution in YBCO thin film devices by photoexcited THz radiation"IEEE Trans. On Appl. Supercond.. 9. 3038-3041 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Detection and storage of femtosecond laser pulse signals by optical magnetic-flux-generation in a YBCO thin film loop"IEEE Trans. On Appl. Supercond.. 9. 4467-4470 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Nashima et al.: "Femtosecond optical pulse response of YィイD20.7ィエD2PrィイD20.3ィエD2BaィイD22ィエD2CuィイD23ィエD2OィイD27-δィエD2 thin films"Advances in Superconductivity. XI. 93-96 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Yamashita et al.: "Evaluation of supercurrent distribution by terahertz radiation mapping"Advances in Superconductivity. XI. 189-192 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H. Saijo et al.: "Magnetic flux generation in YBCO thin film loops by optical excitation under magnetic field"Advances in Superconductivity. XI. 199-202 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Shikita et al.: "Controllability and stability of magnetic flux in YBCO thin film loop trapped by optical induced current imbalance"Advances in Superconductivity. XI. 215-218 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Kiwa et al.: "Magnetic flux trap in ion implanted YBCO thin films diagonosed by terahertz mapping"Advances in Superconductivity. XI. 219-222 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Kondo et al.: "A novel two-dimensional mapping system for supercurrent distribution using femtosecond laser pulses"Advances in Superconductivity. XI. 1285-1288 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Magnetic flux quanta in YBCO thin film loop controlled with femtosecond optical pulses"Advances in Superconductivity. XI. 1293-1296 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Tonouchi et al.: "Design of superconductive optical flux trap memory for femtosecond laser pulse detection"Advances in Superconductivity. XI. 1297-1300 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] O. Morikawa et al.: "Sub-THz spectroscopic system using a multimode laser diode and photoconductive antenna"Appl. Phys. Lett.. 75. 3772-3774 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ch. Ludwig et al.: "Electrodynamic c-axis properties of YbaィイD22ィエD2CuィイD23ィエD2OィイD27-δィエD2 films in the THz frequency regime"Phys. Status Solidi. 213. 405-413 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Kondo et al.: "Terahertz radiation from (111) InAs surface using 1.55 μm femtosecond laser pulses"Japan J. Appl. Phys.. 38. L1035-L1037 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 萩行正憲: "高温超伝導体からのテラヘルツ電磁波発生" レーザー研究. 26・7. 536-540 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Tonouchi: "Visualization of Optically Controlled Magnetic Flux in YBa_2Cu_3O_<7-δ> Thin Film Loop by Terahertz Radiatrion Imaging" Jpn.J.Appl.Phys.,Part2. 37・11A. L1301-L1303 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Hangyo: "Terahertz Radiation from YBCO Thin Films by Optical Pulse Excitation" Advances in Superconductivity X. 1205-1210 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Shikii: "Temperature Dependence of THz Radiation from Flux-trapped YBa_2Cu_3O_<7-δ> Thin Film Excited by Ultrashort Optical Pulses" Advances in Superconductivity X. 1231-1234 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Shikii: "Observation of Supercurrent Distribution in YBa_2Cu_3O_<7-δ> Thin Films Using THz Radiation Excited with Femtosecond Laser Pulses" Appl.Phys.Lett.74・9. 1317-1319 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 萩行正憲: "光パルス励起による高温超伝導体からのテラヘルツ電磁波放射とその応用" TELECOM FRONTIER. 20. 30-42 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Hangyo: "Ion-beam Milling of YBCO Thin Films and Their Characterization by Time-resolved Pump-probe Method" IEEE Trans on Appl.Superconductivity. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Hangyo: "Observation of Supercurrent Distribution in YBCO Thin Film Devices by Photoexcited THz Radiation" IEEE Trans on Appl.Superconductivity. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Tonouchi: "Detection and Storage of Femtosecond Laser Pulse Signals by Optical Magnetic-flux-generation in a YBCO Thin Film Loop" IEEE Trans on Appl.Superconductivity. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] O.Morikawa: "Sub-THz Emission Properties of Photoconductive Antennas Excited with Multimode Laser Diodes" Jpn.J.Appl.Phys.(出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Tonouchi: "Magnetic Flux Quanta in YBCO Thin Film Loop Controlled with Femtosecond Optical Pulses" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Tonouchi: "Design of Superconductive Opticla Flux Trap Memory for Femtosecond Laser Pulse Detection" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Nashima: "Ion Milling of YBa_2Cu_3O_<7-δ> Thin Films and Their Characterization" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Nashima: "Femtosecond Optical Pulse Response of Y_<0.7>Pr_<0.3>Ba_2Cu_3O_<7-δ> Thin Films" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Shikita: "Controllability and Stability of Magnetic Flux in YBCO Thin Film Loop Trapped by Optically Induced Current Imbalance" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yamashita: "Evaluation of Supercurrent Distribution by Terahertz Radiation Mapping" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Kondo: "A Novel Two-dimensional Mapping System of Supercurrent Distribution Using Femtosecond Laser Pulses" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Saijo: "Magnetic Flux Generation in YBCO Thin Film Loop by Optical Excitation under Magnetic Field" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Kiwa: "Magnetic Flux Trap in Ion Implanted YBCO Thin Films Diagnosed by Terahertz Mapping" Advances in Superconductivity XI. (出版予定).

    • Related Report
      1998 Annual Research Report
  • [Publications] 萩行正憲: "光パルス励起による高温超伝導薄膜からのテラヘルツ電磁波の発生" 日本物理学会誌. 52・6. 445-449 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 斗内政吉: "酸化物高温超電導体の超高速光応答とテラヘルツ電磁波の発生" FEDジャーナル. 8・1. 34-38 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Hangyo: "Ultrafast Optical Response and Terahertz Radiation from High-TC Superconductor" IEICE Trans.Electron.E80-C・10. 1282-1290 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Shikii: "Enhanced THz Radiation from YBCO Using a-Axis Oriented hin Films Excited by Ultrashort Optical Pulses" IEICE Trans.Electron.E80-C・10. 1297-1303 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Tani: "Multiple-Frequency Generation of Sub-Terahertz Radiation from Multimode LD Excitation of Photoconductive Antenna" IEEE Microwave and Guided Wave Lett.7・9. 282-284 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Tonouchi: "Control of Magnetic Flux in a YBa_2Cu_3O_<7-δ> Thin Film Loop Using Femtosecond Laser pulses" Appl.Phys.Lett.71・16. 2364-2366 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] G.Er: "Studies on Low Tempeature Structure of Infinitet-Layered Superconductor Sr_<1-x>La_xCuO_2" Physica C. 290. 1-8 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Tonouchi: "Terahertz Emission Properties from Flux-Trapped YBCO Thin Films" Physica C. 293. 82-86 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] N.Tanichi: "Terahertz Radiation from a-Axis Oriented YBCO Thin Films" Physica C. 293. 229-233 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 萩行正憲: "高温超伝導体の超高速光応答とテラヘルツ電磁波の放射" 日本学術振興会超伝導エレクトロニクス第146委員会第60回研究会資料. 16-22 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Shirai: "On the Raman Shift in Misfit Layer Compounds of Metal-Dichalcogenides (MX)(TX_2)-An Effect of the Charge Transfer on the Intralayer Noncentral Forces" Solid State Commun.103・3. 131-135 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Hangyo: "Enhanced THz Radiation from a-Axis Oriented YBCO Films Excited by Femtosecond Optical Pulses" Applied Superconductivity 1997. 595-598 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Hangyo: "Transient Nonequilibrium Superconducting States and Ultrashort Electromagnetic Pulse Emission from YBCO by Femtosecond Laser Pulse Excitation" Applied Superconductivity 1997. 603-605 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Hangyo: "Terahertz Radiation from Superconducting YBa_2Cu_3O_<7-δ> Thin Films Excited by Femtosecond Optical Pulses" Applied Physics Letters. 69・14. 2122-2124 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tonouchi: "Ultrashort Electromagnetic Pulse Radiation from YBCO Thin Films Excited by Femtosecond Optical Pulse" Japan Journal of Applied physics. 35・5A. 2624-2632 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tani: "Enhanced Sub-Picosecond Electromagnetic Radiation from YBa_2Cu_3O_<7-δ> Thin-Film Bow-Tie Antennas Excited with Femtoseconds Laser Pulses" Japan Journal of Applied physics. 35・9B. L1184-L1187 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "Subpicosecond Electromagnetic Pulse Generation from High-T_c Superconducting Thin Films by Femtosecond Laser Pulse Excitation" Czechoslovak Journal of Physics. 46・Suppl.S5. 2767-2768 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tonouchi: "Novel Dynamic Diagnosis of Femtosecond Time-Transient Nonequilibrim State in Optically Excited YBCO Thin Films" Czechoslovak Journal of Physics. 46・Suppl.S5. 1095-1096 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Nagashima: "Interplane Electromagnetic Response of a-Axis Oriented YBCO Thin Films in the Millimeter-Wave Region and Its Dependence on Weak Magnetic Field" Czechoslovak Journal of Physics. 46・Suppl.S2. 1097-1098 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Nagashima: "Inter-Plane Electromagnetic Response of a -Axis Oriented YBCO Films in the Millimeter-Wave Region" Physica C. 271. 365-372 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tonouchi: "Terahertz Emission Syudy of Femtosecond Time-Transient Nonequilibrium State in Optecally Excited YBa_2Cu_3O_<7-δ> Thin Films" Japan Journal of Applied physics. 35・12A. L1578-L1581 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tonouchi: "Novel Terahertz Radiation form Flux-Trapped YBa_2Cu_3O_<7-δ> Thin-Films Excited by Femtosecond Laser Pulses" Japan Journal of Applied physics. 36・2A. L93-L95 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tani: "Emission Properties of YBa_2Cu_3O_<7-δ> Film Photoswitches as Terahertz Radiation Sources" Japan Journal of Applied physics. 36・3B. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "YBCO Thin Film Teraherts Radiator Excited by Femtosecond Laser Pulse" Proc.16th Int.Cryogenic Eng.Conf./Int.Cryogenic Mat.Conf.(ICEC16/ICMC). (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] N.Wada: "YBCO Thin Film Bow-Tie Antenna for Terahertz Radiator" Proc.16th Int.Cryogenic Eng.Conf./Int.Cryogenic Mat.Conf.(ICEC16/ICMC). (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tonouchi: "Characterization of Femtosecond Time-Transient Nonequilibrium State in YBCO Thin Films" Proc.16th Int.Cryogenic Eng.Conf./Int.Cryogenic Mat.Conf.(ICEC16/ICMC). (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "THz Emission from High-T_c Superconductors by Optical Pulse Excitaiton" IEEE Transaction of Applied Superconductivity. (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "Ultrafast Photoexcited Quasiparticle Dynamics in YBCO Films Observed by THz Emission" IEEE Transaction of Applied Superconductivity. (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Tonouchi: "Enhanced THz Radiation from YBCO Thin Film Bow-Tie Antennas with Hyper-Hemispherical MgO Lens" IEEE Transaction of Applied Superconductivity. (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "Ultrashort Electromagnetic Pulse Radiation from YBCO Thin Films by Femtosecond Laser Pulse Irradiation" Advances in Superconductivity IX. (出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "Terahertz Radiation from High-T_c Superconducting Films Excited by Femtosecond Optical Pulses" SPIE Proceedings. 2999(出版予定).

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Hangyo: "Ultrafast Optical Response and Terahertz Radiation from High-T_c Superconductor" IEICE Trans.Commun.(出版予定).

    • Related Report
      1996 Annual Research Report

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Published: 1996-03-31   Modified: 2016-04-21  

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