Results 1 to 10 of about 1,019,369 (173)

Mode Repulsion and Mode Coupling in Random Lasers [PDF]

Physical Review B, 2003
We studied experimentally and theoretically the interaction of lasing modes in random media. In a homogeneously broadened gain medium, cross gain saturation leads to spatial repulsion of lasing modes.
A.L. Burin, A.L. Burin, C. M. Soukoulis, C. Vanneste, C.M. Soukoulis, C.W.J. Beenakker, Ch.M. Briskina, H. Cao, H. Cao, H. Cao, H. Cao, H. Cao, J. Y. Xu, M. Patra, M. Patra, R.C. Polson, R.C. Polson, S.V. Frolov, T.Sh. Misirpashaev, V.M. Apalkov, X. Jiang, X. Jiang, Xunya Jiang, Y. Ling, Y. Ling   +24 more
core   +2 more sources

Terahertz Biosensor Based on Mode Coupling between Defect Mode and Optical Tamm State with Dirac Semimetal [PDF]

Biosensors, 2022
Bulk Dirac semimetal (BDS) has emerged as a “3D graphene” material for the development of optical devices in the past few years. In this study, a BDS-based tunable highly sensitive terahertz (THz) biosensor is proposed by using a Dirac semimetal/Bragg ...
Yuwen Bao, Mengjiao Ren, Chengpeng Ji, Jun Dong, Leyong Jiang, Xiaoyu Dai   +5 more
doaj   +2 more sources

Influence of Nonlinear Effects Induced by Mode Coupling on Vibration Trajectories of MEMS Micromirrors [PDF]

Micromachines
Detection of the vibration trajectories of MEMS micromirrors is crucial for ensuring their application performance. This study investigates key factors influencing micromirror vibration trajectories.
Zhen Chen, Dayong Qiao, Anjie Peng
doaj   +2 more sources

High Sensitivity Terahertz Biosensor Based on Mode Coupling of a Graphene/Bragg Reflector Hybrid Structure [PDF]

Biosensors, 2021
In this work, a high-sensitivity terahertz (THz) biosensor is achieved by using a graphene/Bragg reflector hybrid structure. This high-sensitivity THz biosensor is developed from the sharp Fano resonance transmission peak created by coupling the graphene
Yamei Liu, Qiwen Zheng, Hongxia Yuan, Shenping Wang, Keqiang Yin, Xiaoyu Dai, Xiao Zou, Leyong Jiang   +7 more
doaj   +2 more sources

Multi-Channel High-Performance Absorber Based on SiC-Photonic Crystal Heterostructure-SiC Structure

Nanomaterials, 2022
The multi-channel high-efficiency absorber in the mid-infrared band has broad application prospects. Here, we propose an SiC-photonic crystal (PhC) heterostructure-SiC structure to realize the absorber. The absorption characteristics of the structure are
Jing Han, Jijuan Jiang, Tong Wu, Yang Gao, Yachen Gao   +4 more
doaj   +1 more source

Recent Advances in Chirally-Coupled Core Fibers

Frontiers in Physics, 2022
To meet the needs of high-power fiber lasers, a new fiber structure called chirally coupled core (CCC) fiber has attracted the attention of researchers all over the world.
Mingheng Yuan, Mingheng Yuan, Yuan Sui, Yuan Sui, Zhenao Bai, Zhongwei Fan, Zhongwei Fan   +6 more
doaj   +1 more source

Influence of the Width of Launch Beam Distribution on the Transmission Performance of Seven-Core Polymer-Clad Silica Fibers

Photonics, 2022
We propose a space division multiplexing (SDM) in a newly constructed multicore polymer-clad silica fiber (PCSF) with seven cores arrayed in a hexagonal array, each carrying a centrally launched beam.
Svetislav Savović, Alexandar Djordjevich, Konstantinos Aidinis, Rui Min   +3 more
doaj   +1 more source

Modulation Effects of Internal-Wave Evolution on Acoustic Modal Intensity Fluctuations in a Shallow-Water Waveguide

Journal of Marine Science and Engineering, 2023
Internal solitary waves evolving with time in shallow water are known to affect sound propagation significantly. Unlike prior work studying the acoustic effects of individual internal-wave properties separately, this paper elucidates and evaluates the ...
Qinran Li, Chao Sun, Lei Xie, Xiaodong Huang   +3 more
doaj   +1 more source

Plasmonic Resonance Coupling of Nanodisk Array/Thin Film on the Optical Fiber Tip for Integrated and Miniaturized Sensing Detection

Sensors, 2023
Fiber-optic surface plasmon resonance (FOSPR) sensing technology has become an appealing candidate in biochemical sensing applications due to its distinguished capability of remote and point-of-care detection.
Hao He, Xinran Wei, Yijin He, Yuzhang Liang, Yurui Fang, Wei Peng   +5 more
doaj   +1 more source

Self-Aligned Emission of Distributed Feedback Lasers on Optical Fiber Sidewall

Nanomaterials, 2021
This article assembles a distributed feedback (DFB) cavity on the sidewalls of the optical fiber by using very simple fabrication techniques including two-beam interference lithography and dip-coating. The DFB laser structure comprises graduated gratings
Tianrui Zhai, Xiaojie Ma, Liang Han, Shuai Zhang, Kun Ge, Yanan Xu, Zhiyang Xu, Libin Cui   +7 more
doaj   +1 more source