Refractive index matching methods for liquid flow investigations

1994 ◽  
Vol 17 (5) ◽  
pp. 350-355 ◽  
Author(s):  
R. Budwig
Keyword(s):  
Refractive Index ◽  
Liquid Flow ◽  
Matching Methods ◽  
Index Matching ◽  
Refractive Index Matching

scholarly journals Определение пористости микрочастиц диоксида кремния с помощью метода соответствия показателей преломления

2020 ◽  
Vol 128 (9) ◽  
pp. 1277
Author(s):  
А.А. Ахмадеев ◽  
А.Р. Гайнутдинов ◽  
М.А. Хамадеев ◽  
М.Х. Салахов
Keyword(s):  
Refractive Index ◽  
Silicon Dioxide ◽  
Incident Light ◽  
Total Porosity ◽  
Matching Methods ◽  
Index Matching ◽  
Refractive Index Matching

The porosity of silicon dioxide microparticles synthesized by the Stöber - Fink method has been determined by using the refractive index matching methods. The values of the total porosity of particles have been obtained for different wavelengths of the incident light. The limits of applicability of the method associated with the ratio of the wavelength of the radiation to the size of microparticles have been analyzed.

scholarly journals Refractive index matching applied to fecal smear clearing

2005 ◽  
Vol 47 (6) ◽  
pp. 347-350 ◽  
Author(s):  
Cláudio S. Ferreira
Keyword(s):  
Refractive Index ◽  
Sucrose Solution ◽  
Glycerol Solution ◽  
Human Feces ◽  
Microscope Slide ◽  
Helminth Eggs ◽  
Index Matching ◽  
Refractive Index Matching ◽  
Fecal Smear ◽  
Effect Of Light

Thick smears of human feces can be made adequate for identification of helminth eggs by means of refractive index matching. Although this effect can be obtained by simply spreading a fleck of feces on a microscope slide, a glycerol solution has been routinely used to this end. Aiming at practicability, a new quantitative technique has been developed. To enhance both sharpness and contrast of the images, a sucrose solution (refractive index = 1.49) is used, which reduces the effect of light-scattering particulates. To each slide a template-measured (38.5 mm³) fecal sample is transferred. Thus, egg counts and sensitivity evaluations are easily made.

scholarly journals Biological glass: structural determinants of eye lens transparency

2011 ◽  
Vol 366 (1568) ◽  
pp. 1250-1264 ◽  
Author(s):  
Steven Bassnett ◽  
Yanrong Shi ◽  
Gijs F. J. M. Vrensen
Keyword(s):  
Refractive Index ◽  
Cellular Level ◽  
Structural Determinants ◽  
Lens Transparency ◽  
Index Matching ◽  
Lens Fibre ◽  
Refractive Index Matching ◽  
Lens Membranes ◽  
Adhesive Proteins ◽  
Structural Adaptations

The purpose of the lens is to project a sharply focused, undistorted image of the visual surround onto the neural retina. The first pre-requisite, therefore, is that the tissue should be transparent. Despite the presence of remarkably high levels of protein, the lens cytosol remains transparent as a result of short-range-order interactions between the proteins. At a cellular level, the programmed elimination of nuclei and other light-scattering organelles from cells located within the pupillary space contributes directly to tissue transparency. Scattering at the cell borders is minimized by the close apposition of lens fibre cells facilitated by a plethora of adhesive proteins, some expressed only in the lens. Similarly, refractive index matching between lens membranes and cytosol is believed to minimize scatter. Refractive index matching between the cytoplasm of adjacent cells is achieved through the formation of cellular fusions that allow the intermingling of proteins. Together, these structural adaptations serve to minimize light scatter and enable this living, cellular structure to function as ‘biological glass’.

scholarly journals Kilowatt-level direct-‘refractive index matching liquid’-cooled Nd:YLF thin disk laser resonator

2016 ◽  
Vol 24 (2) ◽  
pp. 1758 ◽  
Author(s):  
Zhibin Ye ◽  
Chong Liu ◽  
Bo Tu ◽  
Ke Wang ◽  
Qingsong Gao ◽  
...  
Keyword(s):  
Refractive Index ◽  
Thin Disk ◽  
Laser Resonator ◽  
Disk Laser ◽  
Index Matching ◽  
Refractive Index Matching ◽  
Thin Disk Laser

Covering a fiber taper with a refractive index matching gel residue: a significant increase in evanescent-wave signal collection efficiency

2011 ◽  
Vol 9 (s1) ◽  
pp. s10701-310703 ◽  
Author(s):  
Huacai Chen Huacai Chen ◽  
Jianjun Ma Jianjun Ma ◽  
Jiahua Chen Jiahua Chen ◽  
Wojtek J. Bock Wojtek J. Bock ◽  
Andrea Cusano Andrea Cusano
Keyword(s):  
Refractive Index ◽  
Evanescent Wave ◽  
Collection Efficiency ◽  
Wave Signal ◽  
Index Matching ◽  
Signal Collection ◽  
Fiber Taper ◽  
Refractive Index Matching

scholarly journals Refractive index matching (RIM) using double-binary liquid–liquid mixtures

2020 ◽  
Vol 61 (2) ◽  
Author(s):  
Thorben Helmers ◽  
Philip Kemper ◽  
Ulrich Mießner ◽  
Jorg Thöming
Keyword(s):  
Refractive Index ◽  
Liquid Mixtures ◽  
Binary Liquid ◽  
Index Matching ◽  
Refractive Index Matching
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