Results 11 to 20 of about 3,799 (260)

Fundamentals of Determination of the Biological Tissue Refractive Index by Ellipsoidal Reflector Method

open access: yesPhotonics
This paper presents the theoretical fundamentals, prerequisites for creation, and peculiarities of modeling a new method for determining the refractive index of biological tissues. The method uses a mirror ellipsoid of revolution as an optical element to
Natalia Bezugla   +4 more
doaj   +3 more sources

A Quarter Ellipsoidal Reflector Enhancing Fluorescence Collection Efficiency For Multiphoton Microscopes

open access: yesIEEE Photonics Journal, 2016
In this paper, we present a fluorescence collection enhancement method for multiphoton microscopy by a quarter ellipsoidal reflector (QER). It is proven to be compatible with commercially available two-photon microscopes without significant customization.
Yingshun Xu   +4 more
doaj   +3 more sources

CALCULATION AND INVESTIGATION IF CATOPTRIC ANASTIGMATIC SYSTEM

open access: yesНаука и техника, 2007
The paper presents results of investigations in respect of three-mirror anastigmatic afocal optical system. It consists of concave and convex parabolic reflectors and a concave ellipsoidal reflector.
N. К. Artioukhina, S. Ya. Prislopsky
doaj   +1 more source

Control of Optical Clearing of Human Skin by Ellipsoidal Reflector Method

open access: yesMìkrosistemi, Elektronìka ta Akustika, 2019
Current research deals with the problem of optical clearing during photometry by ellipsoidal reflectors. The specific problem is optical clearing of human skin, specifically the level control tasks during non-invasive conditions of experiment.
Mikhail O. Bezuglyi   +2 more
doaj   +1 more source

Detecting the Companions and Ellipsoidal Variations of RS CVn Primaries: II. omicron Draconis, a Candidate for Recent Low-Mass Companion Ingestion [PDF]

open access: yes, 2015
To measure the stellar and orbital properties of the metal-poor RS CVn binary o Draconis (o Dra), we directly detect the companion using interferometric observations obtained with the Michigan InfraRed Combiner at Georgia State University's Center for ...
Baron, Fabien   +16 more
core   +3 more sources

Design of Ellipsoid and Spherical Combined Light Source for Uniform Flux and Color Mixing

open access: yesIEEE Photonics Journal, 2019
In this letter, an ellipsoid–spherical combined light source structure is presented for the purpose of uniform flux and color mixing, when considering heat dissipation.
Rui-Min Zeng   +8 more
doaj   +1 more source

Time-Delay Multiplexing of Two Beams in a Terahertz Imaging Radar [PDF]

open access: yes, 2010
We demonstrate a time-delay multiplexing technique that doubles the frame rate of a 660–690-GHz imaging radar with minimal additional instrument complexity.
Bryllert, Tomas   +5 more
core   +1 more source

INFLUENCE OF LASER BEAM PROFILE ON LIGHT SCATTERING BY HUMAN SKIN DURING PHOTOMETRY BY ELLIPSOIDAL REFLECTORS

open access: yesПриборы и методы измерений, 2018
The correct accounting of laser emitter parameters for improvement of diagnostic authenticity of methods of optical biomedical diagnostic is important problem for applied biophotonic tasks.
M. A. Bezuglyi   +2 more
doaj   +1 more source

MANUFACTURING SPECIAL FEATURES OF ELLIPSOIDAL REFLECTOR FOR PHOTOMETERS

open access: yesBulletin of Kyiv Polytechnic Institute. Series Instrument Making, 2016
The improvement of method of making a mirror ellipsoid of revolution based on vertical-boring technology, which use the principles of trajectory copying, was proposed in this paper. The choice of material for making reflector was provided. The structural-functional scheme of a device for forming inner surface of ellipsoid and further finishing ...
Bezuglyi, Mikhail   +3 more
openaire   +3 more sources

Laser writing of bright colours on near-percolation plasmonic reflector arrays [PDF]

open access: yes, 2018
Colouration by surface nanostructuring has attracted a great deal of attention by the virtue of making use of environment-friendly recyclable materials and generating non-bleaching colours [1-8].
Beermann, Jonas   +7 more
core   +2 more sources

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