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Modification of Low Refractive Index Polycarbonate for High Refractive Index Applications [PDF]

open access: yesInternational Journal of Polymer Science, 2009
Polycarbonates and polythiourethanes are the most popular materials in use today, for optical applications. Polycarbonates are of two types which fall in the category of low refractive index and medium refractive index.
Gunjan Suri   +3 more
doaj   +3 more sources

Ray Tracing Method of Gradient Refractive Index Medium Based on Refractive Index Step

open access: yesApplied Sciences, 2021
For gradient refractive index media with large refractive index gradients, traditional ray tracing methods based on refined elements or spatial geometric steps have problems such as low tracing accuracy and efficiency.
Qingpeng Zhang, Yi Tan, Ge Ren, Tao Tang
doaj   +1 more source

Refractive index and temperature coefficient of refractive index of Al2O3- and SiO2-water nanofluids

open access: yesInternational Journal of Thermofluids, 2022
Measurements are made of the refractive index and temperature coefficient of refractive index (∂n/∂T) for two nanofluids, Al2O3-water and SiO2-water, over the temperature range 20–40°C at a wavelength of 632.8 nm.
T. Yousefi, D. Naylor, M.Z. Saghir
doaj   +1 more source

Refraction in Media with a Negative Refractive Index [PDF]

open access: yesPhysical Review Letters, 2003
5 pages, 4 figures, submitted to Phys.
Stavroula Foteinopoulou   +2 more
openaire   +4 more sources

Study on the Optical Properties of High Refractive Index TeO2-PbO-ZnO-BaF2 Glass System

open access: yesAdvances in Materials Science and Engineering, 2021
The tellurite 60TeO2-20PbO-(20-x)ZnO-xBaF2 (x = 1, 3, 5, 6, 7, 9, and 11) series glass samples were prepared. The samples’ SEM, XRD, DSC, density, refractive index, and absorption spectra were tested.
Shiyu Yin   +6 more
doaj   +1 more source

Optical Waveguide Refractive Index Sensor for Biochemical Sensing

open access: yesApplied Sciences, 2023
This study describes the basic principles of optical waveguide refractive index sensing and the various design structures of refractive index sensors. These waveguides generate different optical resonances, which cause changes in the sensing refractive ...
Cheng Peng   +7 more
doaj   +1 more source

Microwaves reduce water refractive index

open access: yesScientific Reports, 2022
Microwaves, long used as a convenient household appliance, have been increasingly used in industrial processes such as organic synthesis and oil processing.
Yusuke Asakuma   +6 more
doaj   +1 more source

Equipment Calibration Method for Seawater Refractive Index Based on Distilled Water

open access: yes水下无人系统学报, 2023
When measurement equipment for marine refractive index is calibrated, the existing calibration methods have problems such as low quantity, high price, and complicated operation.
Hu WANG, Xinyu CHEN, Liyan LI, Yan ZHOU
doaj   +1 more source

Refractive index of rubber [PDF]

open access: yesJournal of Research of the National Bureau of Standards, 1935
Abstract This paper presents an exploratory study of the refractive index of rubber. Previous observations on the refractive index of rubber have been, for the most part, restricted to transparent samples. In the present investigation, however, by using reflected light rather than light at grazing incidence, it was found possible to extend the ...
Archibald T. McPherson   +1 more
openaire   +2 more sources

The refractive index of human blood measured at the visible spectral region by single-fiber reflectance spectroscopy

open access: yesAIMS Biophysics, 2021
The refractive index is an essential biophysical parameter used in many diagnostic and therapeutic biomedical applications. In the present study, the refractive index of control and anemic blood was measured using the total internal reflection fiber ...
Mohamed A. Elblbesy
doaj   +1 more source

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