Harnessing Dynamical Encircling of an Exceptional Point in Anti--Symmetric Integrated Photonic Systems

Z Feng, X Sun - Physical Review Letters, 2022 - APS
Dynamically encircling an exceptional point in a non-Hermitian system can lead to chiral
behaviors, but this process is difficult for on-chip PT-symmetric devices which require …

Tunable mechanical-mode coupling based on nanobeam-double optomechanical cavities

Q Xu, K Cui, N Wu, X Feng, F Liu, W Zhang… - Photonics …, 2022 - opg.optica.org
Tunable coupled mechanical resonators with nonequilibrium dynamic phenomena have
attracted considerable attention in quantum simulations, quantum computations, and non …

Nonsuspended optomechanical crystal cavities using As2S3 chalcogenide glass

R Qi, Q Xu, N Wu, K Cui, W Zhang, Y Huang - Photonics Research, 2021 - opg.optica.org
An optomechanical crystal cavity with nonsuspended structure using As_2S_3 material is
proposed. The principle of mode confinement in the nonsuspended cavity is analyzed, and …

Non-Hermicity-induced multistability in two-level atom-cavity optomechanics

Y Chengyong, KA Yasir, G Xianlong - The European Physical Journal Plus, 2023 - Springer
Non-Hermitian physics of optical as well as atomic systems is crucial for modern quantum
mechanics and is the subject of increasing investigations. Here, we investigate the multi …

Giant Enhancement of Rotation Sensing with -Symmetric Circular Bragg Lasers

Z Feng, X Sun - Physical Review Applied, 2020 - APS
PT-symmetric systems can be used as ultrasensitive sensors by exploiting the non-
Hermitian degeneracy at the exceptional point. However, operating and controlling these …

Mechanical exceptional-point-enhanced second-order sideband generation

B Wang, X Jia, S Cui, S Guo - IEEE Access, 2020 - ieeexplore.ieee.org
Realizing the enhancement and control of the optomechanical induced second-order
sideband generation is of great significance in making a low-power optomechaical amplifier …

Enhanced sensing of non-Newtonian effects at ultrashort range with exceptional points in optomechanical systems

J Liu, L Chen, KD Zhu - arXiv preprint arXiv:1912.05732, 2019 - arxiv.org
We propose an optomechanical nano-gravimeter based on exceptional points. The system
is a coupled cavity optomechanical system, in which the gain and loss are applied by driving …

Parity–time-symmetric mechanical array with the cavity optomechanical effect

Z Feng, J Ma, X Sun - Frontiers in Optics, 2019 - opg.optica.org
Parity–time-symmetric mechanical array with the cavity optomechanical effect Page 1 JTu4A.70.pdf
Frontiers in Optics / Laser Science © OSA 2019 Parity–time-symmetric mechanical array with …