ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Sensitivity enhancement of micro-optical gyro with photonic crystal |
Liu Yang(杨柳), Shuhua Zhao(赵舒华), Jingtong Geng(耿靖童), Bing Xue(薛冰)†, and Yonggang Zhang(张勇刚) |
1 College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin 150001, China |
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Abstract We propose a core rotation-sensing element for improving the sensitivity of the micro-optical gyroscope using the large nonreciprocal effect with a photonic crystal. The sharp transmission peak of electromagnetically induced transparency in photonic crystal generated from a periodic distribution of cold atoms is sensitive to the rotation. Our numerical results show that the sensitivity of relative rotation is about 50 times higher and the sensitivity of absolute rotation is more than two orders higher than that of the traditional resonant optical gyroscope. Also, the sensitivity of the gyroscope can be manipulated by varying the atomic density, modulation frequency, probe pulse width, and photonic crystal length, etc.
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Received: 04 January 2021
Revised: 23 January 2021
Accepted manuscript online: 08 February 2021
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PACS:
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.70.Qs
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(Photonic bandgap materials)
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42.79.Gn
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(Optical waveguides and couplers)
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42.81.Pa
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(Sensors, gyros)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11804066 and 61773133), Heilongjiang Provincial Natural Science Foundation of China (Grant No. LH2019A005), China Postdoctoral Science Foundation (Grant No. 2018M630337), and Heilongjiang Provincial Postdoctoral Science Foundation (Grant No. LBHZ18062). |
Corresponding Authors:
†Corresponding author. E-mail: xuebinghrbeu@163.com
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Cite this article:
Liu Yang(杨柳), Shuhua Zhao(赵舒华), Jingtong Geng(耿靖童), Bing Xue(薛冰), and Yonggang Zhang(张勇刚) Sensitivity enhancement of micro-optical gyro with photonic crystal 2021 Chin. Phys. B 30 044208
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