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Photothermal effect in macroscopic optomechanical systems with an intracavity nonlinear optical crystal

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.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Otabe, Sotatsu0000-0002-3820-2172
Komori, Kentaro0000-0002-4092-9602
Harada, Ken-ichi0000-0002-5130-2848
Suzuki, Kaido0000-0002-1476-4525
Michimura, Yuta0000-0002-2218-4002
Somiya, Kentaro0000-0003-2601-2264
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).
Funding AgencyGrant Number
Japan Science and Technology AgencyJPMJCR1873
Japan Society for the Promotion of Science (JSPS)20J22778
Sumitomo Foundation200629
Issue or Number:23
Record Number:CaltechAUTHORS:20230123-451320900.21
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:118893
Deposited By: Research Services Depository
Deposited On:06 Feb 2023 23:16
Last Modified:07 Feb 2023 20:07

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