Results 31 to 40 of about 44,997 (341)
Hyperuniformity in amorphous speckle patterns [PDF]
, 2018 Hyperuniform structures possess the ability to confine and drive light, although their fabrication is extremely challenging. Here we demonstrate that speckle patters obtained by a superposition of randomly arranged sources of Bessel beams can be used to ...
Ancora, Daniele +4 more
core +2 more sources
Awake chronic mouse model of targeted pial vessel occlusion via photothrombosis [PDF]
, 2020 Animal models of stroke are used extensively to study the mechanisms involved in the acute and chronic phases of recovery following stroke. A translatable animal model that closely mimics the mechanisms of a human stroke is essential in understanding ...
Boas, David A. +9 more
core +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015 Nano/micro scale surface structure on precision machined parts dominates the various product functions such as friction, wear resistance, corrosion, fatigue, and wetting.
Motochika SHIMIZU +3 more
doaj +1 more source
Deep Learning Enabled Laser Speckle Wavemeter with a High Dynamic Range [PDF]
Laser & Photonics reviews, 2019 The speckle pattern produced when a laser is scattered by a disordered medium has recently been shown to give a surprisingly accurate or broadband measurement of wavelength.
Roopam K. Gupta +3 more
semanticscholar +1 more source
Application of a liquid crystal spatial light modulator to laser marking [PDF]
, 2011 Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces.
Beck, Rainer J +3 more
core +1 more source
IEEE Access, 2019 We study laser speckle reduction by light pipes, and we propose a new method to improve its efficiency. Proof-of-concept refractive optical elements (ROEs) with a staircase-like structure are introduced before a holographic diffuser to split a laser beam
Zhaomin Tong +5 more
doaj +1 more source
Tools for classification of growing/non-growing bacterial colonies using laser speckle imaging
Frontiers in Microbiology, 2023 Prior research has indicated the feasibility of assessing growth—associated activity in bacterial colonies through the application of laser speckle imaging techniques.
Ilya Balmages +8 more
doaj +1 more source
High-density speckle contrast optical tomography (SCOT) for three dimensional tomographic imaging of the small animal brain [PDF]
, 2017 High-density speckle contrast optical tomography (SCOT) utilizing tens of thousands of source-detector pairs, was developed for in vivo imaging of blood flow in small animals.
Culver, Joseph P +6 more
core +3 more sources
APL Photonics, 2023 Semiconductor lasers with optical feedback are stochastic nonlinear systems that can display complex dynamics and abrupt changes when their operation conditions change.
Giulio Tirabassi +3 more
doaj +1 more source
Surface Roughness Measurement Using Dichromatic Speckle Pattern: An Experimental Study [PDF]
, 1978 Surface roughness is studied experimentally by making use of the statistical properties of dichromatic speckle patterns. The rms intensity difference between two speckle patterns produced by two argon laser lines are analyzed in the far field as ...
Fujii, Hitoshi, Lit, John W.Y.
core +2 more sources