| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-06-03 |
| タイトル |
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タイトル |
Characterization of birefringence inhomogeneity of KAGRA sapphire mirrors from transmitted wavefront error measurements |
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言語 |
en |
| 著者 |
Wang, Haoyu
Aso, Yoichi
Leonardi, Matteo
Eisenmann2, Marc
Hirose, Eiichi
Billingsley, GariLynn
Kokeyama, Keiko
Ushiba, Takafumi
Tamaki, Masahide
Michimura, Yuta
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
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|
権利情報 |
© 2024 American Physical Society |
|
言語 |
en |
| 内容記述 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Cooling down test masses to cryogenic temperatures is a way to reduce the thermal noise of gravitational wave detectors. Crystalline materials are considered the most promising materials for fabricating cryogenic test masses and their coatings because of their excellent thermal and optical properties at low temperatures. However, birefringence owing to local impurities and inhomogeneities in the crystal can degrade the performance of the detector. The birefringence measurement or mapping over a two-dimensional area is thus important. This study describes a method for fast birefringence measurements of a large sample by simply combining a series of transmission wavefront error measurements using linearly polarized light with Fizeau interferometers. Using this method, the birefringence inhomogeneity information of KAGRA’s two input test masses with a diameter of 22 cm was fully reconstructed. The birefringence information was then used to calculate the transverse beam shapes of the light fields in orthogonal polarization directions when passing through the substrate. It was possible to find a calculated beam shape consistent with in situ measurements using the KAGRA interferometer. This technique is crucial for birefringence characterization of test masses in future detectors, where even larger sizes are used. |
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言語 |
en |
| 出版者 |
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出版者 |
American Physical Society |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1103/PhysRevD.110.082007 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
2470-0010 |
| 書誌情報 |
en : Physical Review D
巻 110,
p. 082007,
発行日 2024-10-18
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PhysRevD_110_082007.pdf (2.6 MB)
