Otabe, Sotatsu and Komori, Kentaro and Harada, Ken-ichi and Suzuki, Kaido and Michimura, Yuta and Somiya, Kentaro (2022) Photothermal effect in macroscopic optomechanical systems with an intracavity nonlinear optical crystal. Optics Express, 30 (23). pp. 42579-42593. ISSN 1094-4087. doi:10.1364/oe.474621. https://resolver.caltech.edu/CaltechAUTHORS:20230123-451320900.21
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Abstract
Intracavity squeezing is a promising technique that may improve the sensitivity of gravitational wave detectors and cool optomechanical oscillators to the ground state. However, the photothermal effect may modify the occurrence of optomechanical coupling due to the presence of a nonlinear optical crystal in an optical cavity. We propose a novel method to predict the influence of the photothermal effect by measuring the susceptibility of the optomechanical oscillator and identifying the net optical spring constant and photothermal absorption rate. Using this method, we succeeded in precisely estimating parameters related to even minor photothermal effects, which could not be measured using a previously developed method.
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Additional Information: | We would like to thank Jerome Degallaix and colleagues at the LMA for providing us a specially coated mirror, and we would like to thank John Winterflood from UWA for designing the double spiral spring. Funding: Core Research for Evolutional Science and Technology (JPMJCR1873); Japan Society for the Promotion of Science (20J22778); Sumitomo Foundation (200629). | ||||||||||||||
Group: | LIGO | ||||||||||||||
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Issue or Number: | 23 | ||||||||||||||
DOI: | 10.1364/oe.474621 | ||||||||||||||
Record Number: | CaltechAUTHORS:20230123-451320900.21 | ||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20230123-451320900.21 | ||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||
ID Code: | 118893 | ||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||
Deposited By: | Research Services Depository | ||||||||||||||
Deposited On: | 06 Feb 2023 23:16 | ||||||||||||||
Last Modified: | 07 Feb 2023 20:07 |
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