Results 51 to 60 of about 28,756 (270)

Very high speed cw digital holographic interferometry

Optics Express, 2006
It is reported for the first time the use of a very high speed camera in digital holographic interferometry with an out of plane sensitivity setup. The image plane holograms of a spherical latex balloon illuminated by a cw laser were acquired at a rate of 4000 frames per second, representing a time spacing between holograms of 250 microseconds, for 512
Carlos, Pérez-López, Manuel H, De la Torre-Ibarra, Fernando, Mendoza Santoyo   +2 more
openaire   +2 more sources

On the Digital Holographic Interferometry of Fibrous Material, I. Optical Properties of Polymer and Optical Fibers

, 2012
The digital holographic interferometry (DHI) was utilized for investigating the optical properties of polymer and optical fibers. The samples investigated here were polyvinylidene fluoride (PVDF) polymer fiber and graded-index (GRIN) optical fiber.
Barakat, C. von Kopylow, Chengand, de Angelis, El-Dessouky, El-Morsy, Gabor, H.M. El-Dessouky, Hamza, Hamza, Hamza, Hamza, Hibino, Hossain, K.M. Yassien, Kreis, Liu, M. Agour, Pluta, Pluta, Rappaz, Schnars, Schnars, Schnars, Simmens, Stetson, Surrel, Wahba, Yaroslavsky, Yassien, Zanger, Zhang   +31 more
core   +1 more source

Experimental investigation of temperature fields in a synthetic jet

MATEC Web of Conferences, 2014
The paper deals with the measurement of temperature fields in a synthetic jet. This type of experiment presents several challenges; therefore, to ensure the best precision possible, two experimental methods were used – digital holographic interferometry (
Dančová Petra, Doleček Roman, Lédl Vít   +2 more
doaj   +1 more source

ANALOG-TO-DIGITAL CONVERSION OF SIGNALS WITH ANGULAR MANIPULATION FOR SOFTWARE DEFINED RADIO SYSTEMS

Научно-технический вестник информационных технологий, механики и оптики, 2016
The paper deals with the search of ways for speeding up and accuracy increase of conversion of modern analog-to-digital converters. The main shortcomings interfering a solution of this task including the field of optoelectronic analog-to-digital ...
A. Y. Tsvetkov , A. G. Prygunov , N. D. Anikeichik, I. P. Rybalko, N. A. Osipov   +4 more
doaj   +1 more source

Unsupervised speckle denoising in digital holographic interferometry based on 4-f optical simulation integrated cycle-consistent generative adversarial network.

Applied Optics
The speckle noise generated during digital holographic interferometry (DHI) is unavoidable and difficult to eliminate, thus reducing its accuracy. We propose a self-supervised deep-learning speckle denoising method using a cycle-consistent generative ...
Hongbo Yu, Qiang Fang, Qinghe Song, S. Montrésor, Pascal Picart, Haiting Xia   +5 more
semanticscholar   +1 more source

Mechanical behavior study of laminate composite by three-color digital holography

Journal of the European Optical Society-Rapid Publications, 2017
A method for real time 3D measurements based on three-color digital holographic interferometry is presented and applied to the investigation of fracture mechanisms in laminate composite submitted to a three point flexural loading. A convolution algorithm
M Karray, C Poilane, M Gargouri, P Picart   +3 more
doaj   +1 more source

Investigation of Nonthermal Plasma Jet Excitation Mode and Optical Assessment of Its Electron Concentration

Applied Sciences, 2021
The results of a study of a plasma jet of atmospheric-pressure helium driven by a capacitive discharge using sine and pulsed modes of excitation are presented. The homogeneous discharge of a multi-channel plasma jet at gas temperature of 34 °C and helium
Anton S. Ivankov, Anastasia M. Kozhevnikova, Dmitry V. Schitz, Igor V. Alekseenko   +3 more
doaj   +1 more source

Label‐Free Holographic Imaging Flow Cytometry With Deep‐Learning‐Based Detection and Classification of Thousands of Cells Per Second

Cytometry Part A, EarlyView.
ABSTRACT We present a new end‐to‐end neural network approach for real‐time biological cell detection and classification via label‐free quantitative imaging flow cytometry based on digital holography, offering a comprehensive representation of cellular structures without the need for chemical cell staining. In contrast to previous studies, our method is
Dana Yagoda‐Aharoni, Eden Dotan, Matan Dudaie, Natan T. Shaked   +3 more
wiley   +1 more source

Dual-wavelength digital holographic interferometry for technical applications

Научно-технический вестник информационных технологий, механики и оптики
A method of dual-wavelength digital holographic interferometry for analyzing and controlling surface shape for technical applications, including surfaces exposed to high-temperature plasma in fusion reactors, is presented.
I. V. Alekseenko, A. M. Kozhevnikova
doaj   +1 more source

3D imaging using scanning diffractometry

Scientific Reports, 2021
Imaging of cells is a challenging problem as they do not appreciably change the intensity of the illuminating light. Interferometry-based methods to do this task suffer from high sensitivity to environmental vibrations.
Morteza J. Siavashani, Iman Naghedi, Vahid Abbasian, Ehsan A. Akhlaghi, Mohammad A. Charsooghi, Mohammad Taghi Tavassoly, Ali-Reza Moradi   +6 more
doaj   +1 more source