Tailored chromatic diffraction efficiency of double-layer single-relief blazed gratings [0.03%]
双层单 Relief 刻痕光栅的色散衍射效率调控
Lia Engelhardt,Daniela Stumpf,Robert Brunner
Lia Engelhardt
"Wavelength selectivity" is an important intrinsic property of diffractive optical elements that offers significant application potential. Here, we focus on tailored wavelength selectivity, the controlled efficiency distribution into differ...
Two-dimensional phase unwrapping based on Fourier transforms and the Yukawa potential spectrum [0.03%]
基于傅里叶变换和Yukawa势谱的二维相位展开算法研究
Alejandro Téllez-Quiñones,Diana B Chi-Couoh,Lucia B Gamboa-Salazar et al.
Alejandro Téllez-Quiñones et al.
The two-dimensional phase unwrapping problem (PHUP) has been solved with discrete Fourier transforms (FTs) and many other techniques traditionally. Nevertheless, a formal way of solving the continuous Poisson equation for the PHUP, with the...
Multi-depth phase-only hologram optimization using the L-BFGS algorithm with sequential slicing [0.03%]
基于顺序切片的L-BFGS算法的多深度相位全息图优化
Jinze Sha,Andrew Kadis,Fan Yang et al.
Jinze Sha et al.
We implement a limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) optimization of phase-only computer-generated hologram for a multi-depth three-dimensional (3D) target. Instead of computing the full 3D reconstruction of the hologram,...
Optical characteristics of a monolayer of identical spherical particles in an absorbing host medium [0.03%]
吸收性介质中单层同径球体颗粒的光学特性
Natalia A Loiko,Alexander A Miskevich,Valery A Loiko
Natalia A Loiko
The problem of light interaction with a 2D ensemble of homogeneous spherical particles embedded into an unbounded homogeneous absorbing host medium is considered. Based on the statistical approach, the equations are derived to characterize ...
Detailed derivation of the generalized Snell-Descartes laws from Fermat's principle [0.03%]
费马原理的详细推导及广义斯涅尔-笛卡尔定律
Emmanuel Rousseau,Didier Felbacq
Emmanuel Rousseau
Beginning with Fermat's principle, we provide a detailed derivation of the generalized laws of refraction and reflection for a geometry realizing a metasurface. We first solve the Euler-Lagrange equations for a light ray propagating across ...
Vì C E Kronberg,Martijn J H Anthonissen,Jan H M Ten Thije Boonkkamp et al.
Vì C E Kronberg et al.
We combine two-dimensional freeform reflector design with a scattering surface modeled using microfacets, i.e., small, specular, surfaces representing surface roughness. The model resulted in a convolution integral for the scattered light i...
Electromagnetic response of corrugated multilayer systems inspired by the Dione vanillae butterfly scales [0.03%]
受金凤蝶鳞片启发的微纳多层系统电磁响应研究
Candela Szischik,Marina Inchaussandague,Diana Skigin
Candela Szischik
Inspired by the microstructures in the wing scales of the butterfly Dione vanillae, we investigate the optical response of two multilayer structures, which include one or two corrugated interfaces. The reflectance is calculated using the C-...
Liquid crystal on silicon-based real time phase stepping interferometry by spatial multiplexing [0.03%]
基于空间复用的硅上液晶实时相移干涉法
Quimey Pears Stefano,Martin Vergara,Claudio Iemmi
Quimey Pears Stefano
In this paper, we present a method to perform phase-shifting interferometry in real time. The technique is based on the use of a parallel aligned liquid crystal on a silicon display as a customized reference mirror. In order to implement th...
Modal spectral element method with modified Legendre polynomials to analyze binary crossed gratings [0.03%]
采用修正的勒让德多项式的模态谱元法分析二元交叉光栅
Gérard Granet
Gérard Granet
In a previous paper, a modal spectral element method (SEM), the originality of which comes from the use of a hierarchical basis built with modified Legendre polynomials, was shown to be very powerful for the analysis of lamellar gratings. I...
Calculation of the optical forces exerted on a nano-dielectric sphere induced by a pulsed Laguerre-Gaussian beam [0.03%]
拉盖尔-高斯脉冲光场对介电纳米球光学操控的研究
M A Shukri,F M Thabit
M A Shukri
Theoretically, we investigated the optical force exerted on a nano-dielectric sphere illuminated by a pulsed Laguerre-Gaussian beam. In the frame of the dipole approximation, analytical expressions for the optical force were derived. Based ...