Infrared light detection using a whispering-gallery-mode optical microcavity

Jiangang Zhu; Sahin Kaya Ozdemir; Lan Yang

doi:10.1063/1.4874652

Infrared light detection using a whispering-gallery-mode optical microcavity

Jiangang Zhu, Sahin Kaya Ozdemir, Lan Yang

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

We demonstrate a thermal infrared (IR) detector based on an ultra-high-quality-factor (Q) whispering-gallery-mode (WGM) microtoroidal silica resonator and investigate its performance to detect IR radiation at 10 μm wavelength. The bandwidth and the sensitivity of the detector are dependent on the power of a probe laser and the detuning between the probe laser and the resonance frequency of the resonator. The microtoroid IR sensor achieved a noise-equivalent-power (NEP) of 7.46nW, corresponding to an IR intensity of 0.095mW/cm².

Original language	English (US)
Article number	171114
Journal	Applied Physics Letters
Volume	104
Issue number	17
DOIs	https://doi.org/10.1063/1.4874652
State	Published - Apr 28 2014

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4874652

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title = "Infrared light detection using a whispering-gallery-mode optical microcavity",

abstract = "We demonstrate a thermal infrared (IR) detector based on an ultra-high-quality-factor (Q) whispering-gallery-mode (WGM) microtoroidal silica resonator and investigate its performance to detect IR radiation at 10 μm wavelength. The bandwidth and the sensitivity of the detector are dependent on the power of a probe laser and the detuning between the probe laser and the resonance frequency of the resonator. The microtoroid IR sensor achieved a noise-equivalent-power (NEP) of 7.46nW, corresponding to an IR intensity of 0.095mW/cm2.",

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AU - Ozdemir, Sahin Kaya

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N2 - We demonstrate a thermal infrared (IR) detector based on an ultra-high-quality-factor (Q) whispering-gallery-mode (WGM) microtoroidal silica resonator and investigate its performance to detect IR radiation at 10 μm wavelength. The bandwidth and the sensitivity of the detector are dependent on the power of a probe laser and the detuning between the probe laser and the resonance frequency of the resonator. The microtoroid IR sensor achieved a noise-equivalent-power (NEP) of 7.46nW, corresponding to an IR intensity of 0.095mW/cm2.

AB - We demonstrate a thermal infrared (IR) detector based on an ultra-high-quality-factor (Q) whispering-gallery-mode (WGM) microtoroidal silica resonator and investigate its performance to detect IR radiation at 10 μm wavelength. The bandwidth and the sensitivity of the detector are dependent on the power of a probe laser and the detuning between the probe laser and the resonance frequency of the resonator. The microtoroid IR sensor achieved a noise-equivalent-power (NEP) of 7.46nW, corresponding to an IR intensity of 0.095mW/cm2.

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Infrared light detection using a whispering-gallery-mode optical microcavity

Abstract

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