Quantum nondemolition measurement of photon number via optical Kerr effect in an ultra-high- Q microtoroid cavity

Yun Feng Xiao; Şahin Kaya Özdemir; Venkat Gaddam; Chun Hua Dong; Nobuyuki Imoto; Lan Yang

doi:10.1364/OE.16.021462

Quantum nondemolition measurement of photon number via optical Kerr effect in an ultra-high- Q microtoroid cavity

Yun Feng Xiao, Şahin Kaya Özdemir, Venkat Gaddam, Chun Hua Dong, Nobuyuki Imoto, Lan Yang

Engineering Science and Mechanics

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

78 Scopus citations

Abstract

We theoretically investigate a quantum nondemolition (QND) measurement with optical Kerr effect in an ultra-high-Q microtoroidal system. The analytical and numerical results predict that the present QND measurement scheme possesses a high sensitivity, which allows for detecting few photons or even single photons. Ultra-high-Q toroidal microcavity may provide a novel experimental platform to study quantum physics with nonlinear optics at low light levels.

Original language	English (US)
Pages (from-to)	21462-21475
Number of pages	14
Journal	Optics Express
Volume	16
Issue number	26
DOIs	https://doi.org/10.1364/OE.16.021462
State	Published - Dec 22 2008

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.16.021462

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AU - Dong, Chun Hua

AU - Imoto, Nobuyuki

AU - Yang, Lan

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AB - We theoretically investigate a quantum nondemolition (QND) measurement with optical Kerr effect in an ultra-high-Q microtoroidal system. The analytical and numerical results predict that the present QND measurement scheme possesses a high sensitivity, which allows for detecting few photons or even single photons. Ultra-high-Q toroidal microcavity may provide a novel experimental platform to study quantum physics with nonlinear optics at low light levels.

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Quantum nondemolition measurement of photon number via optical Kerr effect in an ultra-high- Q microtoroid cavity

Abstract

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