Results 31 to 40 of about 43,418 (51)

Chaotic dynamics in passively Q-switched Tm:LiYF4 laser operating at 2.3 μm on the 3H4 → 3H5 transition

APL Photonics
We report on the chaotic dynamics in a passively Q-switched 2.3-μm thulium laser operating on the 3H4 → 3H5 transition. The experiment exploits a Tm:LiYF4 crystal and various laser cavity configurations, involving an optional cascade laser on the 3F4 ...
Hippolyte Dupont, Matthieu Glasset, Pavel Loiko, Patrick Georges, Frédéric Druon   +4 more
doaj   +1 more source

Quantitative assessment of chlorine gas inhalation injury based on endoscopic OCT and spectral encoded interferometric microscope imaging with deep learning

APL Photonics
Chlorine exposure can cause severe airway injuries. While the acute effects of chlorine inhalation are well-documented, the structural changes resulting from the post-acute, high-level chlorine exposure remain less understood.
Zhikai Zhu, Hyunmo Yang, Hongqiu Lei, Yusi Miao, George Philipopoulos, Melody Doosty, David Mukai, Yuchen Song, Jangwoen Lee, Sari Mahon, Matthew Brenner, Livia Veress, Carl White, Woonggyu Jung, Zhongping Chen   +14 more
doaj   +1 more source

Widely tunable Ka-band optoelectronic oscillator integrated on thin film lithium niobate platform

APL Photonics
We report a novel widely tunable Ka-band optoelectronic oscillator (OEO) realized by integrating a Mach–Zehnder modulator (MZM), a thermally-tunable add-drop micro-ring resonator (MRR), and a Mach–Zehnder interferometer (MZI) on the thin film lithium ...
Rui Ma, Zijun Huang, Wei Ke, Xichen Wang, Peng Hao, X. Steve Yao, Xinlun Cai   +6 more
doaj   +1 more source

The manipulation of spin angular momentum for binary circular Airy beam during propagation

APL Photonics
The Airy beam has attracted great attention since it was proposed in 2007 due to its novel properties, such as non-diffraction, self-healing, and self-acceleration.
Guang-Bo Zhang, Xu-Zhen Gao, Qing-Lu Li, Ya-Ning Kong, Tian-Fei Zhao, Shi-Tong Xu, Ren-De Ma, Jia-Qi Lü, Yue Pan   +8 more
doaj   +1 more source

Efficiency improvement by using metal–insulator-semiconductor structure in InGaN/GaN micro-light-emitting diodes

Frontiers of Optoelectronics
InGaN/GaN micro-light-emitting diodes (micro-LEDs) with a metal–insulator-semiconductor (MIS) structure on the sidewall are proposed to improve efficiency.
Jian Yin, David Hwang, Hossein Zamani Siboni, Ehsanollah Fathi, Reza Chaji, Dayan Ban   +5 more
doaj   +1 more source

Efficient single-pixel imaging based on a compact fiber laser array and untrained neural network

Frontiers of Optoelectronics
This paper presents an efficient scheme for single-pixel imaging (SPI) utilizing a phase-controlled fiber laser array and an untrained deep neural network. The fiber lasers are arranged in a compact hexagonal structure and coherently combined to generate
Wenchang Lai, Guozhong Lei, Qi Meng, Yan Wang, Yanxing Ma, Hao Liu, Wenda Cui, Kai Han   +7 more
doaj   +1 more source

Continuous-Variable Measurement-Device-Independent Quantum Key Distribution in the Terahertz Band

Photonics
We have introduced, for the first time, a protocol for Continuous-Variable Measurement-Device-Independent Quantum Key Distribution (CV-MDI-QKD) in the terahertz (THz) frequency band. We have conducted a secret key rate analysis against collective attacks.
Haoxin Liu, Zhe Yang, Shuoyu Yang, Dongyun Sun, Cunlin Zhang   +4 more
doaj   +1 more source

Dissipation-Induced Photon Blockade in the Anti-Jaynes–Cummings Model

Photonics
Due to the fundamental differences between the quantum world and the classical world, some phenomena, such as entanglement and wave–particle duality, only exist in the quantum realm.
Biao Huang, Cuicui Li, Bixuan Fan, Zhenglu Duan   +3 more
doaj   +1 more source

Study of Optical Rogue Waves in Two-Dimensional Disordered Lattices

Photonics
We probed the impact of both the degree of disorder and nonlinearity on rogue waves (RWs) in two-dimensional disordered lattices. Our results unveiled that an increase in the disorder level under linear conditions heightened the probability of RW ...
Jie Song, Meng Li, Fuqiang Li, Ying Wang, Ziyang Chen, Cibo Lou   +5 more
doaj   +1 more source

A Micro-Mach–Zehnder Interferometer Temperature Sensing Design Based on a Single Mode–Coreless–Multimode–Coreless–Single Mode Fiber Cascaded Structure

Photonics
In this paper, a temperature sensing scheme with a miniature MZI structure based on the principle of inter-mode interference is proposed. The sensing structure mainly comprises single mode–coreless–multimode–coreless–single mode fibers (SCMCSs), which ...
Qing Yang, Jing Tian, Xiao Hu, Jiajun Tian, Qiqi He   +4 more
doaj   +1 more source