Fabrication of Tapered 3D Microstructure Arrays Using Dual-Exposure Lithography (DEL)
Micromachines, 2020 Three-dimensional (3D) microstructure arrays (MSAs) have been widely used in material science and biomedical applications by providing superhydrophobic surfaces, cell-interactive topography, and optical diffraction.
Venkatakrishnan Rengarajan +2 more
doaj +1 more source
Time varying gratings model Hawking radiation [PDF]
arXiv, 2023 Diffraction gratings synthetically moving at trans-luminal velocities contain points where wave and grating velocities are equal. We show these points can be understood as a series of optical event horizons where wave energy can be trapped and amplified, leading to radiation from the quantum vacuum state.
arxiv
Generation of 1180 Å period gratings with a Xe ion laser [PDF]
, 1988 Holographic lithography with the 2315 Å line of a xenon ion laser is used to produce gratings in polymethylmethacrylate. An 1180 Å period grating is made and examined with a scanning electron microscope (SEM).
Bridges, W. B. +4 more
core
Disulfide Glass: An Optical Polymer for Commodity Plastics, Precision Optics, and Photonics
Advanced Functional Materials, EarlyView.From oil and glass refining to high performance commodity polymers with enhanced thermomechanical and optical properties—the synthesis of a new high refractive index, highly transparent optical thermoset polymer is reported, termed, disulfide glass that affords a robust optical glass amenable to fabrication of precision optics and thin film photonic ...
Jake Molineux +15 more
wiley +1 more source
Advances in diffractive liquid crystal grating devices using patterned electrodes
Journal of Information DisplayOptics has advanced through centuries of research into the fundamental properties of light and its interactions with matter. Within this rich history, one optical component stands out: the diffraction grating.
Chan-Hee Han +4 more
doaj +1 more source
Comparison between Grating Imaging and Transient Grating Techniques on Measuring Carrier Diffusion in Semiconductor [PDF]
arXiv, 2018 Optical grating technique, where optical gratings are generated via light inference, has been widely used to measure charge carrier and phonon transport in semiconductors. In this paper, compared are three types of transient optical grating techniques: transient grating diffraction, transient grating heterodyne, and grating imaging, by utilizing them ...
arxiv
Multisite silicon neural probes with integrated silicon nitride waveguides and gratings for optogenetic applications. [PDF]
, 2016 Optimal optogenetic perturbation of brain circuit activity often requires light delivery in a precise spatial pattern that cannot be achieved with conventional optical fibers.
Chen, Yu +3 more
core +2 more sources
Flat dielectric grating reflectors with focusing abilities [PDF]
, 2010 Sub-wavelength dielectric gratings have emerged recently as a promising alternative to distributed Bragg reflection dielectric stacks for broadband, high-reflectivity filtering applications.
D. Fattal +4 more
semanticscholar +1 more source
Heat Conduction Modulation in Incommensurate Twisted Stacking of Transition‐Metal Dichalcogenide
Advanced Functional Materials, EarlyView.The interlayer thermal conductance in twisted bilayer TMDs is initially investigated experimentally by the thermoreflectance method. The overlap of lattice vibrations within individual layers and the interlayer interactions, as elucidated through both Raman spectroscopy and molecular dynamics simulations, are demonstrated to be critical factors in ...
Bin Xu +6 more
wiley +1 more source
Clarification on Generalized Lau condition for X-ray interferometers based on dual phase gratings [PDF]
, 2019 To implement dual phase grating x-ray interferometry with x-ray tubes, one needs to incorporate an absorbing source grating. In order to attain good fringe visibility, the period of a source grating should be subject to a stringent condition. In literature some authors claim that the Lau-condition in Talbot-Lau interferometry can be literally ...
arxiv +1 more source