Results 81 to 90 of about 25,478 (173)
Metamaterial-based polarization control plate for producing incoherent laser irradiation
, 2012 We present a metamaterial-based random polarization control plate to produce incoherent laser irradiation by exploiting the ability of metamaterial in local polarization manipulation of beam upon transmission via tuning its local geometry.
Fan, Dianyuan +4 more
core +1 more source
Dynamics of laser speckle imaging of blood flow in the tissues at partial temporary pancreatic ischemia of hungry, fed and alcoholized rats [PDF]
Саратовский научно-медицинский журнал, 2016 The aim of the study is to determine the influence of a partial temporary ischemia and reperfusion on the development of pancreatitis in laboratory rats. Material and Methods. The experiments were performed on 73 white rats.
Alexandrov D.A. +6 more
doaj
Speckle Noise Reduction via Linewidth Broadening for Planetary Laser Reflectance Spectrometers
Remote SensingThe low obliquity of the Moon leads to challenging solar illumination conditions at the poles, especially for passive reflectance measurements aimed at determining the presence and extent of surface volatiles.
Daniel R. Cremons +2 more
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, 2007 We describe an extension of multi-speckle diffusing wave spectroscopy adapted to follow the non-stationary microscopic dynamics in drying films and coatings in a very reactive way and with a high dynamic range.
Brun, Alice +3 more
core +2 more sources
Polarization Imperfections of Light in Interferometry [PDF]
, 2009 Disertační práce pojednává o polarizačních nedokonalostech optických komponentů, které jsou využívány ke kontrole a k transformaci polarizačního stavu světla.
Kučera, Petr
core
Studies of in vivo speckle contrast imaging based on an improved laser speckle imaging method
Journal of Biomedical OpticsLaser speckle contrast imaging (LSCI) is widely used for intraoperative blood flow monitoring, but traditional methods have limitations in imaging low blood flow velocities and small vessels. An improved LSCI method, termed the fluent imaging technique, is proposed to enhance imaging sensitivity and accuracy, providing real-time and high-resolution ...
Han, Guang +7 more
openaire +2 more sources
Clinical translation of laser speckle contrast imaging
, 2022 Humankind is moving forward in an astonishing pace in every scientific specialty. It is therefore remarkable that the current standard-of-care for blood flow assessment has remained unchanged for decades. The desire to 'see' tissue perfusion (i.e.
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A miniature multi-contrast microscope for functional imaging in freely behaving animals
Nature Communications, 2019 Measuring multiple neurophysiologic variables usually requires bulky benchtop optical systems and working with anesthetized animals. Here the authors present a miniature portable microscope for neurovascular imaging in awake rodents, combining ...
Janaka Senarathna +10 more
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Laser speckle contrast imaging of Raynaud phenomenon [PDF]
Polish Archives of Internal Medicine, 2014 Marcin, Hellmann, Jean-Luc, Cracowski
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Methods of producing laser speckle contrast images
, 2014 Methods of imaging are provided. In some embodiments, the methods may comprise obtaining a raw speckle image of a sample, converting the raw speckle image to a laser speckle contrast image using a laser speckle contrast algorithm, and converting a laser speckle contrast image to a relative correlation time image using a relative correlation time ...
Andrew Eric Dunn, William James Tom
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