Modeling and simulation of amplified spontaneous emission in single-mode-pumped Cr2+:ZnSe bulk amplifiers with beam propagation and equivalent input-noise seeding [0.03%]
单模泵浦的Cr2+:ZnSe大块放大器中受激发射放大的建模与仿真——含有光束传播和等效输入噪声播种
Johan Nilsson
Johan Nilsson
We investigate and use the beam propagation method with equivalent input noise for the simulation of narrow-band amplified spontaneous emission (ASE) and signal amplification in continuous-wave Cr2+:ZnSe non-waveguiding "bulk" amplifiers wi...
Analytical study on the upward laser beam propagation in the turbulent atmosphere [0.03%]
湍流大气中上行激光传输的理论研究
Qian Li,Zhixiang Zhang,Yixuan Li et al.
Qian Li et al.
The upward laser beam propagation in the turbulent atmosphere is studied analytically, where the nonlinear self-focusing, the atmospheric turbulence, and the atmospheric extinction effects are all taken into account. The analytical propagat...
Clara Ethuin,Nacera Bouldja,Delphine Wolfersberger
Clara Ethuin
This work theoretically investigates the interplay of nonlinear Airy beams (AB) propagation and optically induced waveguide arrays in a photorefractive (PR) crystal. By introducing defect guides within the photonic lattice, we control the t...
Zhoulin Ding,Yonggen Xu
Zhoulin Ding
Autofocusing beams have attracted widespread attention due to their advantages in optical trapping, but their propagation behavior in complex optical systems is still unclear. Here, we obtain the analytical propagation formulas for autofocu...
Evaluation of beam convergence driven by spherical gradient refractive index lenses based on nonparaxial beam propagation [0.03%]
基于非傍轴光束传播的球形梯度折射率透镜驱动光束汇聚性评价
Thi Phuong Anh Nguyen,Le Phuong Hoang,Thi Kim Cuc Nguyen et al.
Thi Phuong Anh Nguyen et al.
We utilize a theoretical method based on nonlinear beam propagation and finite difference eigenmode solver methods to precisely simulate Gaussian beam propagation in electrical fields through spherical gradient refractive index lenses. The ...
Modelling and next-value prediction of beam propagation from grating structures using a simplified transformer model [0.03%]
使用简化的变压器模型对光栅结构的光束传播进行建模和下一步预测
Yu Dian Lim,Chuan Seng Tan
Yu Dian Lim
In this study, a simplified transformer model is used to perform next-value prediction on light coupled out from silicon photonics gratings to free space. Finite-difference time-domain (FDTD) simulation is performed to simulate the electric...
Bessel beam propagation using radial beam propagation method at different propagation scales [0.03%]
不同传播尺度下径向传播法的贝塞尔光束传输研究
Adel S A Elsharkawi,I-Chen Tsai,Xiang-Ting Lin et al.
Adel S A Elsharkawi et al.
This paper is devoted to studying the Bessel beam propagation in cylindrical coordinates using the Hankel transform beam propagation method (HT-BPM) and their behavior in different scenarios in the microscale and meter scale of propagation ...
Generalized dark hollow sine-Gaussian beam and its propagation properties [0.03%]
广义暗空心Sine-Gaussian光束及其传输特性
Taofen Wang,Qin Su,Jie Zhu
Taofen Wang
A model of the generalized dark hollow sine-Gaussian beam (GDHsGB) is proposed to uniformly describe both conventional dark hollow beams (DHBs) and anomalous dark hollow beams (ADHBs) with circular or elliptic geometrical patterns. Using th...
Beam propagation in cubic-quintic nonlinear optical system supported by modified parity-time symmetric Rosen-Morse complex potential [0.03%]
由修正的非对称Rosen-Morse位势支持的三五次非线性光学系统中的光束传播
Jaseera C P,Aysha Muhsina K,Thasneem A R
Jaseera C P
The present study explores the stability and persistence of nonlinear waves in self-focusing cubic-quintic media employing couplings of nonlinearity, spatial diffraction, and the parity-time symmetric Rosen-Morse complex field. Here, we dis...
Precision tailoring of laser beam propagation in a single crystalline diamond tool for in situ laser-assisted diamond turning [0.03%]
用于原位激光辅助金刚石车削的单晶金刚石工具中激光束传播的精确整形
Wangjie Hu,Zengqiang Li,Xuesen Zhao et al.
Wangjie Hu et al.
The characteristics of laser beam propagation within a diamond tool critically influence the applied thermal softening capability of in situ laser-assisted diamond turning (In-LAT). In the present work, we perform optical geometric analysis...
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