Multi-Wavelength Coherent-Perfect-Absorption−Laser Points and Half-Wave Phase Shift in Parity-Time-Reciprocal Scaling Symmetry Structure

Multi-Wavelength Coherent-Perfect-Absorption−Laser Points and Half-Wave Phase Shift in Parity-Time-Reciprocal Scaling Symmetry Structure

Two slabs of dielectrics with different values of refractive index are synthesized to form a composite structure and the whole system satisfies parity-time-reciprocal scaling symmetry. Four coherent-perfect-absorber-laser points are induced by modulating the incident wavelength of lightwaves and the...

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Bibliographic Details
Main Authors: Yongjun Xiao, Haiyang Hu, Xiaoling Chen, Junjie Dong, Dong Zhao, Fangmei Liu
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Crystals
Subjects:
PTX symmetry
CPA-laser point
half-wave phase shifter
dielectric structure
laser
Online Access:https://www.mdpi.com/2073-4352/13/12/1608

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