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Proceedings Paper

High-order PT symmetry-based optical sensor
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Paper Abstract

We investigate a fourth-order PT symmetric optical sensor and analyze its eigenfrequency phase diagram. The four eigenfrequencies of our optical sensor simultaneously collapse at the high-order exceptional point in parameter space, providing a quarter root relation between the frequency splitting amount and the perturbation. A clear sensitivity boost is observed when comparing the frequency splitting with other optical sensors under small perturbation condition.

Paper Details

Date Published: 25 February 2020
PDF: 7 pages
Proc. SPIE 11283, Integrated Optics: Devices, Materials, and Technologies XXIV, 112830L (25 February 2020); doi: 10.1117/12.2546440
Show Author Affiliations
Yulin Wu, ShanghaiTech Univ. (China)
Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Sciences (China)
Peiji Zhou, ShanghaiTech Univ. (China)
Ting Li, ShanghaiTech Univ. (China)
Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Sciences (China)
Weishi Wan, ShanghaiTech Univ. (China)
Yi Zou, ShanghaiTech Univ. (China)


Published in SPIE Proceedings Vol. 11283:
Integrated Optics: Devices, Materials, and Technologies XXIV
Sonia M. García-Blanco; Pavel Cheben, Editor(s)

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