1996 Fiscal Year Annual Research Report

高感度レーザー干渉計を用いた『重力波天文学』の研究

Research Project

Project/Area Number	08NP0801
Research Institution	National Astronomical Observatory of Japan
Principal Investigator	古在由秀国立天文台, 名誉教授 (70012789)
Co-Investigator(Kenkyū-buntansha)	中村卓史京都大学, 基礎物理学研究所, 教授 (80155837) 齋藤芳男高エネルギー物理学研究所, 加速器第一研究系, 助教授 (00141979) 黒田和明東京大学, 宇宙線研究所, 教授 (00242165) 藤本眞克国立天文台, 位置天文天体力学研究系, 教授 (90107475) 坪野公夫東京大学, 大学院・理学系, 助教授 (10125271)
Keywords	重力波天文学 / レーザー干渉計 / 重力波検出
Research Abstract	今年度は研究計画の第2年次目にあたり、レーザー干渉計のための真空系の製作と設置が全体の50%程度まで進行し、レーザー本体も完成・納入された。また、干渉計用の懸架システムや低周波防振装置、防振用スタックなどの設計と製作を進める一方で、リサイクリングの基礎実験、光学制御系の方式設計、超低損失光学要素の開発など、未踏技術の開発研究を進めた。具体的な項目の進行状況と成果は次の通りである。 1.10W出力の注入同期型レーザーが完成し、これに対する周波数および強度安定化の実験を開始した。 2.高性能成膜装置により耐高出力・超低損失ミラーの試作を行い、性能評価を行った。 3.モードクリーナ用ミラーを製作し、テーブルトップ実験によるリング型モードクリーナの基礎実験を行った。 4.懸架システムを設計して1組の実機を製作した。これを用いた干渉計による性能評価は来年度に行う。 5.20m干渉計の改良と雑音解析を進め、雑音レベルを現実のパラメータでの原理的なショット雑音に近づけることができた。 6.スタック防振装置及び試作の2次元X-pendulum装置をモードクリーナー用真空槽に組み込んで、安定性・性能・真空汚染などのテストをした。 7.データの遠隔取得と干渉計の遠隔デジタル制御のために光ケーブルを敷設し、システムの整備を続けた。 8.連星中性子星の合体の様子をくわしく調べるため、最も内側の安定円軌道を数値計算ならびに摂動計算によって研究した。次年度は、干渉計システムへのインテグレーションが主になる年次であり、残りの真空槽並びに真空配管を製作・設置して真空システム全体を完成させ、300m干渉計の組み立てを行い、リサイクリングを行わない干渉計の動作を完成させる計画である。

Research Products

(29 results)

All Other

All Publications (29 results)

[Publications] A.A.Kaminskii: "New optical Phenomena in Nonlinear Laser Crystal-Hosts KY (WO4)2 and KGd(WO4)2" Rs.J.Quantum Electron. 346. 33-36 (1996)
[Publications] 久保田能徳: "紫外波長可変Ce3+:LiSAF固体レーザー" レーザー研究. 24. 353-359 (1996)
[Publications] 佐々木明: "2次元流体コードと原子過程ポストプロセッサによる再結合X線レーザーのシミュレーションコードの開発" レーザー研究. 24. 1218-1226 (1996)
[Publications] N.Uehara: "Spectroscopic Measurements of Yb3+:LiYF4 Crystal" Jpn.J.Appl.Phys.35. L499-L501 (1996)
[Publications] A.Ueda: "Ultra-high Quality with 1.5 ppm Loss at 1064nm" Opt.Rev.3. 369-372 (1996)
[Publications] A.Kaminskii: "High Efficiency Second Harmonic Generation of Self Doubling Laser Crystal Gd(MoO4)3:Nb3+" Rs.J.Quantum Electron.23. 389-390 (1996)
[Publications] :A.Liu: "Rectangular double-clad fibre laser with two-end-bundled pump" Electron.Lett.32. 1673-1674 (1996)
[Publications] A.Kaminskii: "Efficient Harmonic Generation in Cherenkov Radiation Scheme in Self Doubling Laser Crystal LaBGeO3" Rs.J.Quantum Electrom.23. 391-392 (1996)
[Publications] A.Liu: "The absorption characterisctics of rare earth doped circular double-clad fibers" Opt.Rev.3. 276-281 (1996)
[Publications] A.Liu: "TThe absorption characteristics of circular,offset,and rectangular double-clad fibers" Opt.Comm. 152. 511-518 (1996)
[Publications] A.Liu: "Propagation losses of pump light in rectangular double-clad fibers" Opt.Eng.35. 3130-3134 (1996)
[Publications] H.Nishioka: "Ultra-broad-band continuum generation by a self-trapped ultra-short Ti:A1203 laser pulse" TOPS on Advanced Solid-State Lasers. 1. 242-247 (1996)
[Publications] H.Nishioka: "Intense Coherent VUV Radiation from a Self-Trapped Ultra-Short Laser Pulse" J.Electron Spectrosc.80. 263-266 (1996)
[Publications] J.Song: "Virtual Point Source Pumped cw Nd : YAG Laser with 81 W Output from Linear Cavity and 22 W Output from Ring Cavity" Jpn.J.Appl.Phys.35. L1268-L1290 (1996)
[Publications] A.Kaminskii: "New Stimulated Emission Channels of Pr3+ and Tm3+ Ions in Monoclinic KR(WO4)2 Type Crystals with Ordered Structure (R=Y and Gd)," Jpn.J.Appl.Phys.36. L107-L109 (1997)
[Publications] H.Nishioka: "Super-Wide-Band Coherent Light Generation in Multi-Channeling Propagation of Tera-Watt Ti : Sapphire Laser Pulses" Prog.Crystal Growth and Chanract.33. 237-240 (1996)
[Publications] A.A.Kaminskii: "New crystalline lasers on the base of monoclinic KR(WO4)2:Ln3+ tungstates (R=Y and Ln)" Opt.Rev.4. (1997)
[Publications] M.Musha: "Measurement of frequency noise spectra of frequency-stabilized LD-pumped Nd : YAG laser by using a cavity with separately suspended mirrors" Opt.Comm.(印刷中).
[Publications] H.Nishioka: "Direct measurement of phase matching angle using coherent white light" Appl.Phys.Lett.(印刷中).
[Publications] K.Kawabe: "Demonstration of a Recombined Fabry-Perot-Michelson Interferometer with Suspended Mirrors" Appl.Phys.B62. 135-138 (1996)
[Publications] Kaheita Yuki: "Measuring the anelasticity of Cu-Be film under tensile stress using the X-pendulum" Physics Letters. A-223. 149-154 (1996)
[Publications] Barton,M.A.: "A low-frequency vibration isolation table using multiple crossed-wire suspensions" Rev.Sci.Instrum.67. 3994-3999 (1996)
[Publications] A.Araya: "Optical Mode Cleaner with Suspended Mirrors" Applied Optics. 36. (1997)
[Publications] K.Kuroda: "Status of TAMA" Proc.International Conference on Gravitational Waves : Sources and Detectors. (印刷中).
[Publications] Y.Saito: "Vacuum System Design for the 300m Gravitational Wave Laser Interferometer in Japan (TAMA300)" Vacuum. 47. 609-611 (1996)
[Publications] T.Tanaka: "Gravitational Waves by a Particle in Circular Orbits around a Schwarzshild Black Hole---5.5 Post-Newtonian Formula---" Progress of Theoretical Physics. 96. 1087-1101 (1996)
[Publications] T.Tanaka: "Gravitational waves from a spinning particle in circular orbits around a rotating black hole" Physical Review. D54. 3762-3777 (1996)
[Publications] K.Ohashi: "Post-Newtonian Expansion of Gravitational Waves from a Compact Star Orbiting a Rotating Black Hole in Brans-Dicke Theory---Circular Orbit Case---" Progress of Theoretical Physics. 96. 713-728 (1996)
[Publications] H.Tagoshi: "Post-Newtonian expansion of gravitational waves from a particle in circular orbit around a rotating black hole : Up to O(v^8) beyond the quadrupole formula" Physical Review. D54. 1439-1459 (1996)

1996 Fiscal Year Annual Research Report

高感度レーザー干渉計を用いた『重力波天文学』の研究

Principal Investigator

古在 由秀 国立天文台, 名誉教授 (70012789)

Research Products

[Publications] A.A.Kaminskii: "New optical Phenomena in Nonlinear Laser Crystal-Hosts KY (WO4)2 and KGd(WO4)2" Rs.J.Quantum Electron. 346. 33-36 (1996)

[Publications] 久保田能徳: "紫外波長可変Ce3+:LiSAF固体レーザー" レーザー研究. 24. 353-359 (1996)

[Publications] 佐々木明: "2次元流体コードと原子過程ポストプロセッサによる再結合X線レーザーのシミュレーションコードの開発" レーザー研究. 24. 1218-1226 (1996)

[Publications] N.Uehara: "Spectroscopic Measurements of Yb3+:LiYF4 Crystal" Jpn.J.Appl.Phys.35. L499-L501 (1996)

[Publications] A.Ueda: "Ultra-high Quality with 1.5 ppm Loss at 1064nm" Opt.Rev.3. 369-372 (1996)

[Publications] A.Kaminskii: "High Efficiency Second Harmonic Generation of Self Doubling Laser Crystal Gd(MoO4)3:Nb3+" Rs.J.Quantum Electron.23. 389-390 (1996)

[Publications] :A.Liu: "Rectangular double-clad fibre laser with two-end-bundled pump" Electron.Lett.32. 1673-1674 (1996)

[Publications] A.Kaminskii: "Efficient Harmonic Generation in Cherenkov Radiation Scheme in Self Doubling Laser Crystal LaBGeO3" Rs.J.Quantum Electrom.23. 391-392 (1996)

[Publications] A.Liu: "The absorption characterisctics of rare earth doped circular double-clad fibers" Opt.Rev.3. 276-281 (1996)

[Publications] A.Liu: "TThe absorption characteristics of circular,offset,and rectangular double-clad fibers" Opt.Comm. 152. 511-518 (1996)

[Publications] A.Liu: "Propagation losses of pump light in rectangular double-clad fibers" Opt.Eng.35. 3130-3134 (1996)

[Publications] H.Nishioka: "Ultra-broad-band continuum generation by a self-trapped ultra-short Ti:A1203 laser pulse" TOPS on Advanced Solid-State Lasers. 1. 242-247 (1996)

[Publications] H.Nishioka: "Intense Coherent VUV Radiation from a Self-Trapped Ultra-Short Laser Pulse" J.Electron Spectrosc.80. 263-266 (1996)

[Publications] J.Song: "Virtual Point Source Pumped cw Nd : YAG Laser with 81 W Output from Linear Cavity and 22 W Output from Ring Cavity" Jpn.J.Appl.Phys.35. L1268-L1290 (1996)

[Publications] A.Kaminskii: "New Stimulated Emission Channels of Pr3+ and Tm3+ Ions in Monoclinic KR(WO4)2 Type Crystals with Ordered Structure (R=Y and Gd)," Jpn.J.Appl.Phys.36. L107-L109 (1997)

[Publications] H.Nishioka: "Super-Wide-Band Coherent Light Generation in Multi-Channeling Propagation of Tera-Watt Ti : Sapphire Laser Pulses" Prog.Crystal Growth and Chanract.33. 237-240 (1996)

[Publications] A.A.Kaminskii: "New crystalline lasers on the base of monoclinic KR(WO4)2:Ln3+ tungstates (R=Y and Ln)" Opt.Rev.4. (1997)

[Publications] M.Musha: "Measurement of frequency noise spectra of frequency-stabilized LD-pumped Nd : YAG laser by using a cavity with separately suspended mirrors" Opt.Comm.(印刷中).

[Publications] H.Nishioka: "Direct measurement of phase matching angle using coherent white light" Appl.Phys.Lett.(印刷中).

[Publications] K.Kawabe: "Demonstration of a Recombined Fabry-Perot-Michelson Interferometer with Suspended Mirrors" Appl.Phys.B62. 135-138 (1996)

[Publications] Kaheita Yuki: "Measuring the anelasticity of Cu-Be film under tensile stress using the X-pendulum" Physics Letters. A-223. 149-154 (1996)

[Publications] Barton,M.A.: "A low-frequency vibration isolation table using multiple crossed-wire suspensions" Rev.Sci.Instrum.67. 3994-3999 (1996)

[Publications] A.Araya: "Optical Mode Cleaner with Suspended Mirrors" Applied Optics. 36. (1997)

[Publications] K.Kuroda: "Status of TAMA" Proc.International Conference on Gravitational Waves : Sources and Detectors. (印刷中).

[Publications] Y.Saito: "Vacuum System Design for the 300m Gravitational Wave Laser Interferometer in Japan (TAMA300)" Vacuum. 47. 609-611 (1996)

[Publications] T.Tanaka: "Gravitational Waves by a Particle in Circular Orbits around a Schwarzshild Black Hole---5.5 Post-Newtonian Formula---" Progress of Theoretical Physics. 96. 1087-1101 (1996)

[Publications] T.Tanaka: "Gravitational waves from a spinning particle in circular orbits around a rotating black hole" Physical Review. D54. 3762-3777 (1996)

[Publications] K.Ohashi: "Post-Newtonian Expansion of Gravitational Waves from a Compact Star Orbiting a Rotating Black Hole in Brans-Dicke Theory---Circular Orbit Case---" Progress of Theoretical Physics. 96. 713-728 (1996)

[Publications] H.Tagoshi: "Post-Newtonian expansion of gravitational waves from a particle in circular orbit around a rotating black hole : Up to O(v^8) beyond the quadrupole formula" Physical Review. D54. 1439-1459 (1996)

古在由秀国立天文台, 名誉教授 (70012789)