Results 21 to 30 of about 334,082 (299)
Nano-Focusing and Leveling System Based on Improved Phase Analysis
IEEE Photonics Journal, 2016 A nano-focusing and leveling system (FLS) based on improved phase analysis is proposed to measure the wafer height in lithography. Different from traditional methods, this paper applies a grating-based mark to conduct the measurement according to the ...
Yan Tang +5 more
doaj +1 more source
Advanced Photonics Research, 2022 The direct laser writing (DLW) using femtosecond lasers allows for the inscription of 3D microstructures embedded inside optical materials. Based solely on the silver ions photochemistry, the DLW in silver‐containing glasses enables to locally induce ...
Théo Guérineau +7 more
doaj +1 more source
High Performance Dual-Core D-Shaped PCF Refractive Index Sensor Coated with Gold Grating
Photonics, 2023 In this study, a dual−core D-shaped photonic crystal fiber (PCF) surface plasmon resonance sensor coated with gold grating is designed and analyzed using the finite-element method (FEM).
Yu Ying +6 more
doaj +1 more source
Diffractive Optics for Gravitational Wave Detectors [PDF]
, 2006 All-reflective interferometry based on nano-structured diffraction gratings offers new possibilities for gravitational wave detection. We investigate an all-reflective Fabry-Perot interferometer concept in 2nd order Littrow mount.
A Bunkowski +9 more
core +4 more sources
A Mid-Infrared Narrowband Absorber Based on a Subwavelength Fine-Structured Silicon–Gold Metagrating
Applied Sciences, 2019 A subwavelength fine-structured silicon−gold metagrating was designed for realizing mid-infrared (mid-IR) narrowband absorbers. The metagrating consisted of a silicon grating on the stack of a gold film and a quartz substrate.
Xin He +4 more
doaj +1 more source
Nanomaterials, 2022 We propose a graphene plasmonic structure by applying two graphene layers mingled with a thin gold layer in a silicon grating. By utilizing the finite-difference time-domain (FDTD) method, we investigate the optical response of the system, and observe ...
Xu Zhong +7 more
doaj +1 more source
High sensitivity refractive index sensor based on simple diffraction from phase grating [PDF]
, 2016 We present a technique for refractive index sensing using a phase grating structure. A grating under normal incidence can be designed such that the 1st order diffracted light travels at a diffraction angle of 90o with respect to the 0th order.
Adarsh Sandhu +3 more
core +2 more sources
A Dual-Band Guided-Laser Absorber Based on Silicon-Nickel Metasurface
Photonics, 2022 Metasurface absorbers are already used in many laser applications. To achieve laser stealth, a dual-band guided-laser absorber is presented in this paper. The absorber is composed of periodic silicon squares on a silicon film and a nickel layer.
Xinye Liao +5 more
doaj +1 more source
Integration of a multimode interference coupler with a corrugated sidewall Bragg grating in planar polymer waveguides [PDF]
, 2006 We demonstrate the integration of a 3-dB multimode interference coupler with a corrugated sidewall Bragg grating in planar polymer waveguides by direct electron beam writing.
Huang, Yanyi, Yariv, Amnon, Zhu, Lin
core +1 more source