Exceptional-surface-enhanced rotation sensing with robustness in a whispering-gallery-mode microresonator
Exceptional-surface-enhanced rotation sensing with robustness in a whispering-gallery-mode microresonator
复制标题
回音壁模式微谐振器中具有鲁棒性的特殊表面增强旋转传感
DOI:
10.1103/physreva.104.033505
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发表时间:
2020-08
影响因子:
2.9
通讯作者:
Zhisong Xiao
中科院分区:
文献类型:
--
作者:
Wenxiu Li;Yang Zhou;Peng Han;Xiaoyang Chang;Shuo Jiang;Anping Huang;Hao Zhang;Zhisong Xiao
Exceptional points (EPs) are special singularities of non-Hermitian Hamiltonians. At an EP, two or more eigenvalues and the corresponding eigenstates coalesce. Recently, EP-based optical gyroscope near an EP was extensively investigated to improve the response to rotation. However, the highly resultant dimensionality in the eigenstate space causing the EP-based system is sensitivity to more external perturbations, that is, the great response at EPs requires strict implementation conditions. To solve this problem, we proposed a new non-Hermitian structure that realizes an exceptional surface (EP surface) embedded in a high-dimensional parameter space. With respect to the EPs, non-Hermitian EP surface system provides additional degrees of freedom, where a series of undesired perturbations (such as fabrication errors) will shift along the EP surface, which corresponds to the robustness. On the other hand, the rotation will force the system away from the EPs, sensitivity can arise three orders of the magnitude, compared to the traditional Sagnac effect. The EP surface system has the potential to combine robustness with enhanced sensitivity of the rotation.
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影响因子:
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Li Wei;J. Lit
通讯作者:
Li Wei;J. Lit
影响因子:
2.9
作者:
Yang Fan;Liu Yong-Chun;You Li
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You Li
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35
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Zhu, Jiangang;Ozdemir, Sahin Kaya;Yang, Lan
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Yang, Lan
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作者:
J. Schnabel;H. Cartarius;J. Main;G. Wunner;W. D. Heiss
通讯作者:
J. Schnabel;H. Cartarius;J. Main;G. Wunner;W. D. Heiss
影响因子:
5.5
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Zhang Xu Lin;Chan C. T.
通讯作者:
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