1995 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	07NP1101
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) 斎藤芳男高エネルギー物理学研究所, 放射光実験施設, 助教授 (00141979) 黒田和明東京大学, 宇宙線研究所, 助教授 (00242165) 藤本真克国立天文台, 位置天文天体力学研究系, 助教授 (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、300mレーザー干渉計の製作に必要な研究と開発を開始した。具体的な項目の進行状況と成果は次の通りである。 1.高出力LDを使い、ND:YAGでリングスレーブレーザーを作り、注入同時を行って、レーザーの安定化実験を開始した。さらに高出力化のために、新しい材質Nd:YLFを用いてリングレーザーを製作し、単一周波数発振を得た。 2.超低損失ミラーを試作し、現有の20m干渉計に組み込んで評価した。 3.20m干渉計用モードクリーナーを製作・評価し、実機設計への指針を得るとともに、干渉計制御のための変調側帯波透過実験を行った。 4.wave-front sensingの手法を用いた鏡のオートアライメント法を開発し、計算通りの性能が得られることを確認した。 5.リサイクリング実験用の高性能鏡を試作・開発するとともに、材料の基礎評価用装置を開発した。 6.懸架システムの防振特性を評価するとともにスタック防振装置の特性を測定し、超低周波防振のためにX-振り子を用いる2次元防振装置を開発した。 7.防振を考慮したモードクリーナー真空槽の製作並びに低ガス放出材料を用いた真空配管路(150m)を製作した。 8.観測法の確立とデータ取得法の開発のため、100m干渉計を使用した安定な長時間運転を行い、多チャンネルデータ同時モニタ・取得・制御システムを構築した。 9.連星中性子星の合体時に放出される重力波の数値シミュレーション並びにポストニュートニアン近似による理論的予測を行った。次の年度は、レーザー光源の殆どの部分と真空システムの半分程度を完成させ、干渉計に必要な要素製作を進める一方で、最終目標達成のため現段階では未知の技術の開発に属する研究も進める計画である。

Research Products

(24 results)

All Other

All Publications (24 results)

[Publications] Fujimoto M. -K.: "Development of A 20m Prototype Laser Interferometric Gravitational Wave Detector at NAO" Proc. 1st E. Amaldi Conf. on Gravitational Wave Experiments. 304-307 (1995)
[Publications] Heflin, E. G.: "Digital Alignment Control for the TENKO-100 DL Interferometer" ISAS Res. Note. 563. (1995)
[Publications] Heflin, E. G.: "Analog Alignment Control for the TENKO-100 DL Interferometer" ISAS Res. Note. 567. (1995)
[Publications] Baig, T. J.: "Prototype Active Vibration Isolation System for TENKO-100" ISAS Res. Note. 569. (1995)
[Publications] Miyoki, S.: "Absolute Control in 100m Delay-Line Type Laser Interferometer" Physics Let. A. (印刷中) (1996)
[Publications] Miyoki, S.: "The Frequency Stabilization System with Three Feedback Actuators for TENKO-100" ISAS Res. Note. (印刷中) (1996)
[Publications] Miyoki, S.: "The Simulation for the Beam Spot Shape Distortion in an Optical Delay-Line Path of TENKO-100" ISAS Res. Note. (印刷中) (1996)
[Publications] Miyoki, S.: "Development of a 100-meter Laser Interferometric Gravitational Wave Detector" ISAS Res. Note. (印刷中) (1996)
[Publications] Barton, M. A.: "A Low-Frequency Vibration Isolation Table using Multiple Crossed-Wire Suspensions" Rev. Sci. Instrum. (印刷中) (1996)
[Publications] Barton, M. A.: "A Two-Dimensional Low-Frequency Vibration Isolation Table using the X-pendulum Technique" Rev. Sci. Instrum. (印刷中) (1996)
[Publications] Mio, N.: "Vibration Transducer Using an Ultra-short Fabry-Perot Cavity" Appl. Opt. 34. 186-189 (1995)
[Publications] Tsubono, K.: "300-m Laser Interferometer Gravitational Wave Detector (TAMA300) in Japan" Proc. 1st E. Amaldi conf. on Gravitational Wave Experiments,. 112-114 (1995)
[Publications] N. Uehara: "Accurate Measurement of Ultralow Loss in a High-Finesse Fabry-Perot Interferometer using the Frequency Response Functions," Appl. Phys.B61. 9-15 (1995)
[Publications] N. Uehara: "Accurate measurement of the radius of curvature of a concave mirror and the power dependence in a high-finesse Fabry-Perot interferometer" Appl. Opt. 34. 5611-5619 (1995)
[Publications] N. Uehara: "Ultralow-Loss mirror of the parts-in-10-6 level at 1064 nm" Opt. Lett. 20. 530-532 (1995)
[Publications] N. Uehara: "Continuous-Wave TEM00 mode 26.5 output, virtual-point-source diode-arwrays pumped Nd: YAG laser," Opt. Lett. 15. 1707-1709 (1995)
[Publications] 植田憲一: "半導体レーザー励起Nd: YAGレーザーの周波数安定化" 応用物理. 64. 904-907 (1995)
[Publications] N. Uehara: "Spectroscopic Measurements of Yb3+: LiYF4 Crystal" Jpn. J. Appl, Phys.(印刷中)
[Publications] N. Uehara: "Ultra-high Quality Mirror of total loss of 1.5 ppm" Opt. Rev.(印刷中)
[Publications] Eric Poisson: "Gravitational radiation from a particle in circular orbit around a black hole. V. Black-hole absorption and tail corrections" Physical Review. D51. 5753-5767 (1995)
[Publications] M. Shibata: "Evolution of three-dimensional grabvtational waves: Harmonic slicing case" Phys. Rev.D52. 5428-5444 (1995)
[Publications] K. Nakao: "The Hubble Parameter in a void Universe: Effect of the Peculiar Velocity" Astrophys. J. 453. 541-544 (1995)
[Publications] T. Nakamura: "The Volume Expansion Rate and the Age of the Universe" Mon. Not. R. Astron. Soc. 276. L41-L44 (1995)
[Publications] H. Hanami: "(C+O) Star-Neutron Star close Binary System is a Progenitor of Soft Gamma-Ray Repeater?" Prog. Theor. Phys.94. 1001-1010 (1995)

1995 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] Fujimoto M. -K.: "Development of A 20m Prototype Laser Interferometric Gravitational Wave Detector at NAO" Proc. 1st E. Amaldi Conf. on Gravitational Wave Experiments. 304-307 (1995)

[Publications] Heflin, E. G.: "Digital Alignment Control for the TENKO-100 DL Interferometer" ISAS Res. Note. 563. (1995)

[Publications] Heflin, E. G.: "Analog Alignment Control for the TENKO-100 DL Interferometer" ISAS Res. Note. 567. (1995)

[Publications] Baig, T. J.: "Prototype Active Vibration Isolation System for TENKO-100" ISAS Res. Note. 569. (1995)

[Publications] Miyoki, S.: "Absolute Control in 100m Delay-Line Type Laser Interferometer" Physics Let. A. (印刷中) (1996)

[Publications] Miyoki, S.: "The Frequency Stabilization System with Three Feedback Actuators for TENKO-100" ISAS Res. Note. (印刷中) (1996)

[Publications] Miyoki, S.: "The Simulation for the Beam Spot Shape Distortion in an Optical Delay-Line Path of TENKO-100" ISAS Res. Note. (印刷中) (1996)

[Publications] Miyoki, S.: "Development of a 100-meter Laser Interferometric Gravitational Wave Detector" ISAS Res. Note. (印刷中) (1996)

[Publications] Barton, M. A.: "A Low-Frequency Vibration Isolation Table using Multiple Crossed-Wire Suspensions" Rev. Sci. Instrum. (印刷中) (1996)

[Publications] Barton, M. A.: "A Two-Dimensional Low-Frequency Vibration Isolation Table using the X-pendulum Technique" Rev. Sci. Instrum. (印刷中) (1996)

[Publications] Mio, N.: "Vibration Transducer Using an Ultra-short Fabry-Perot Cavity" Appl. Opt. 34. 186-189 (1995)

[Publications] Tsubono, K.: "300-m Laser Interferometer Gravitational Wave Detector (TAMA300) in Japan" Proc. 1st E. Amaldi conf. on Gravitational Wave Experiments,. 112-114 (1995)

[Publications] N. Uehara: "Accurate Measurement of Ultralow Loss in a High-Finesse Fabry-Perot Interferometer using the Frequency Response Functions," Appl. Phys.B61. 9-15 (1995)

[Publications] N. Uehara: "Accurate measurement of the radius of curvature of a concave mirror and the power dependence in a high-finesse Fabry-Perot interferometer" Appl. Opt. 34. 5611-5619 (1995)

[Publications] N. Uehara: "Ultralow-Loss mirror of the parts-in-10-6 level at 1064 nm" Opt. Lett. 20. 530-532 (1995)

[Publications] N. Uehara: "Continuous-Wave TEM00 mode 26.5 output, virtual-point-source diode-arwrays pumped Nd: YAG laser," Opt. Lett. 15. 1707-1709 (1995)

[Publications] 植田憲一: "半導体レーザー励起Nd: YAGレーザーの周波数安定化" 応用物理. 64. 904-907 (1995)

[Publications] N. Uehara: "Spectroscopic Measurements of Yb3+: LiYF4 Crystal" Jpn. J. Appl, Phys.(印刷中)

[Publications] N. Uehara: "Ultra-high Quality Mirror of total loss of 1.5 ppm" Opt. Rev.(印刷中)

[Publications] Eric Poisson: "Gravitational radiation from a particle in circular orbit around a black hole. V. Black-hole absorption and tail corrections" Physical Review. D51. 5753-5767 (1995)

[Publications] M. Shibata: "Evolution of three-dimensional grabvtational waves: Harmonic slicing case" Phys. Rev.D52. 5428-5444 (1995)

[Publications] K. Nakao: "The Hubble Parameter in a void Universe: Effect of the Peculiar Velocity" Astrophys. J. 453. 541-544 (1995)

[Publications] T. Nakamura: "The Volume Expansion Rate and the Age of the Universe" Mon. Not. R. Astron. Soc. 276. L41-L44 (1995)

[Publications] H. Hanami: "(C+O) Star-Neutron Star close Binary System is a Progenitor of Soft Gamma-Ray Repeater?" Prog. Theor. Phys.94. 1001-1010 (1995)

古在由秀国立天文台, 名誉教授 (70012789)