• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Laser induced amplified spontaneous emission from the high Rydberg states of diatomic molecules

Research Project

Project/Area Number 10640497
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionScience University of Tokyo

Principal Investigator

TSUKIYAMA Koichi  Department of Chemistry, Science University of Tokyo, Associate Professor, 理学部, 助教授 (20188519)

Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1999: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1998: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsNO / CO / Rydberg states / seeder field / Amplified spontaneous emission / リュードベリ状態 / 前期解離 / 高リュードベリ状態
Research Abstract

Amplified spontaneous emission (ASE) from single rotational levels of 3dσ, π H ィイD12ィエD1ΣィイD1+ィエD1, H' ィイD12ィエD1Π and nf (n = 4-6) Rydberg states of NO has been investigated through optical-optical double resonance excitation via the A ィイD12ィエD1ΣィイD1+ィエD1 state. The H, H'→ 3pσ, π D ィイD12ィエD1ΣィイD1+ィエD1, C ィイD12ィエD1Π (0, 0) systems were rotationally resolved. The mixing of the C ィイD12ィエD1Π(v = 0) state with the valence B ィイD12ィエD1Π(v = 7) state explained the rotational pattern successfully. The degree of polarization of ASE for these transitions was measured and compared with theoretical values of the corresponding resonant fluorescence. As the major ASE relaxation channels from the 4f and 5f (v = 0) states, transitions down to the 3d and 4d (v = 0) Rydberg series were identified,respectively.A new ASE relaxation pathway,6f → 5g,was found in addition to the 6f → 5d band. The ASE from the 7f (v =1) state located above the ionization threshold was observed for the first time.
The effect of externally injected radiation on the two-photon laser induced amplified spontaneous emission (LI-ASE) has been stuied. The wave generated via the same LI-ASE process in a seeder cell acts as a seeder field for the inverted medium created in a main cell. A nearly tenfold gain is achieved in the BィイD11ィエD1ΣィイD1+ィエD1 → AィイD11ィエD1Π (0, 3) transition of the CO molecule. We demonstrate that the single rotational transition in the BィイD11ィエD1ΣィイD1+ィエD1 → AィイD11ィエD1Π(0, 4) band is selectively amplified by injection of laser radiation. The polarization effect of the input laser radiation implied that the inverted medium in the main cell serves as an amplifier while maintaining the polarization anisotropy driven by two-photon excitation.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Y. Ogi: "New inter-Rydbery transitions of No"J. Chem. Phys.. 108. 900-906 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A. Sugita: "Radiative decay processes in the 6S and 7S"J. Chem. Phys.. 109. 3386-3392 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Ogi: "Switching of the two competing amplified"Chem. Phys. Left.. 296. 384-390 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Ogi: "Single-photon laser driven four-wave mixing"Opt. Commun. 171. 309-315 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Ogi: "Laser induced amplified spontaneous emission"Chem. Phys. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Ogi, A.Sugita, H.Suzuki, Y,Tanaka and K.Tsukiyama: "New inter-Rydberg transitions of NO revealed by the laser induced amplified spontaneous emission"J.Chem.Phys.. 108. 900-906 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A.Sugita, M.Ikeda and K.Tsukiyama: "Parametric four-wave mixing in the 3d and 4d Rydberg states of NO"Appl.Phys.. B67. 253-256 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Suzuki, M.Nakata, Y.Ogi and K.Tsukiyama: "The HィイD11ィエD1ΣィイD2gィエD2ィイD1+ィエD1(v = 0 and 1) and EFィイD11ィエD1ΣィイD2gィエD2ィイD1+ィエD1(v = 28 and 32) states of DィイD22ィエD2 : Term values and fluorescence lifetimes"J.Mol.Spectrosc.. 191. 142-147 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A.Sugita, M.Ikeda and K.Tsukiyama: "Radiative decay processes in the 6s and 7s Rydberg states of NO studied by three color laser induced amplified spontaneous emission spectroscopy"J.Chem.Phys.. 109. 3386-3392 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Ogi and K.Tsukiyama: "Mechanism of the parametric four-wave mixing processes involving the CィイD12ィエD1Π and DィイD12ィエD1ΣィイD1+ィエD1 Rydberg states of NO"Opt.Commun.. 155. 413-423 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Ogi and K.Tsukiyama: "Switching of the two competing amplified spontaneous emission channels in NO"Chem.Phys.Lett.. 296. 384-390 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Ogi and K.Tsukiyama: "Single-photon laser driven four-wave mixing in NO"Opt.Commun. 171. 307-313 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Ogi, M.Takahashi, K.Tsukiyama and R.Bersohn: "Laser induced amplified spontaneous emission from the 3d and nf Rydberg states of NO"Chem.Phys. (in press.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] A.Sakoda, H.Mutoh and K.Tsukiyama: "Effect of the externally injected radiation on amplified spontaneous emission in CO"Chem.Phys.Lett.. (in press.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Ogi,K.Tsukiyama: "Single-photon laser driven four-wave miving in NO"Opt.Commun.. 171. 309-315 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Ogi,K.Tsukiyama,・・・: "Laser induced AsE from the 3d and nf Rydberg states of NO"Chem.Phys.. (印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Ogi et.al: "New inter-Rydberg transitions of no …" J.chem.phys.108. 900-906 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.sugita et.al: "Radiative decay processes in the 6S and 7S Rydbevg…" J.chem.phys.109. 3386-3392 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Ogi and K.Tsukiyama: "Mechanism of the parametric four-waveming …" Opt.Commun. 155. 413-423 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Ogi and K.Tsukiyama: "Switching of the two competing ASE channels…" Chem.phys.Lett.296. 384-390 (1998)

    • Related Report
      1998 Annual Research Report

URL: 

Published: 1998-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi