Parity–time symmetry synthetic lasers: Physics and devices

B Qi, HZ Chen, L Ge, P Berini… - Advanced Optical …, 2019 - Wiley Online Library
The invention of the laser has revolutionized modern science and engineering as well as
our daily lives. Recently, a new class of lasers based on concepts borrowed from parity–time …

High-order exceptional point based optical sensor

Y Wu, P Zhou, T Li, W Wan, Y Zou - Optics Express, 2021 - opg.optica.org
Exceptional points (EPs) could potentially enhance the sensitivity of an optical sensing
system by orders of magnitude. Higher-order EP systems, having more complex physics …

Advances in Semiconductor Lasers Based on Parity–Time Symmetry

H Sha, Y Song, Y Chen, J Liu, M Shi, Z Wu, H Zhang… - Nanomaterials, 2024 - mdpi.com
Semiconductor lasers, characterized by their high efficiency, small size, low weight, rich
wavelength options, and direct electrical drive, have found widespread application in many …

Transmission properties of thue-morse, fibonacci and fixed length photonic crystals: comparing the planar and annular geometries

M Agha-Hassani, MH Ehsani, M Soleimani - Optical and Quantum …, 2023 - Springer
In this research, we have investigated electromagnetic light propagation through both planar
and annular photonic crystals numerically. Three types of structures including,(A) constant …

Towards promising platform by using annular photonic crystals to simulate and design useful mask

AA Ameen, HA Elsayed, S Alamri, ZS Matar… - Photonics, 2021 - mdpi.com
Human masks are considered the mainstay in air filtration and purification technologies and
against the spreading of bacterial and viral infections. This paper introduces a novel design …

Accessing the exceptional points in coupled Fabry–Perot resonators through hybrid integration

Y Zhu, L Zhu - Acs Photonics, 2018 - ACS Publications
Parity-time (PT) symmetric coupled microresonators with judiciously modulated loss and
gain have been widely studied to reveal many non-Hermitian features in optical systems …

[PDF][PDF] 基于PT 对称和超对称的微结构激光器

傅廷, 王宇飞, 王学友, 陈静瑄, 周旭彦… - Chinese Journal of …, 2021 - researching.cn
摘要激光器是一种高亮度, 高效率和高相干性的功率转换器件, 特别是在半导体激光器系统中,
不仅存在折射率的高低分布, 而且还同时存在增益和损耗分布, 是一个天然的非厄米光学系统 …

Approaches to tuning the exceptional point of PT-symmetric double ridge stripe lasers

T Fu, Y Wang, X Zhou, F Du, J Fan, X Wang, J Chen… - Optics …, 2021 - opg.optica.org
Electrically injected Parity-time (PT)-symmetric double ridge stripe semiconductor lasers
lasing at 980 nm range are designed and measured. The spontaneous PT-symmetric …

Parity-time symmetric gratings in 1550 nm distributed-feedback laser diodes: insight on device design rules

H Benisty, VB de La Perrière, A Ramdane, A Lupu - JOSA B, 2021 - opg.optica.org
We build on former results from our work on parity-time symmetric gratings implemented in
1550 nm distributed-feedback laser diodes to address the design issues raised by the first …

Circular Bragg lasers with radial PT symmetry: design and analysis with a coupled-mode approach

Z Feng, J Ma, Z Yu, X Sun - Photonics Research, 2018 - opg.optica.org
Parity–time (PT) symmetry has been demonstrated in the frame of classic optics. Its
applications in laser science have resulted in unconventional control and manipulation of …