Results 11 to 20 of about 179,626 (313)

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

International 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   +3 more sources

All-LCP Terahertz Metasensor with Dual Quasi-BIC Resonances for Dual-Range Refractive Index Sensing [PDF]

Biosensors
Terahertz (THz) metasurface biosensors still encounter difficulties in simultaneously achieving high spectral resolution and stable readout across different refractive-index regimes.
Yan Zhang, Mengya Pan, Qiankai Hong, Shengyuan Shen, Conghui Guo, Yaping Li, Yanpeng Shi, Yifei Zhang   +7 more
doaj   +2 more sources

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

International 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, Gouri Shankar Jha, Geetha Seshadri, Rakesh Kumar Khandal   +3 more
doaj   +2 more sources

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

Applied 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

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

Advances 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, Hao Wang, Aifeng Li, Haoyu Huang, Jing Zhang, Lin Liu, Yuanzhi Zhu   +6 more
doaj   +1 more source

Optical Waveguide Refractive Index Sensor for Biochemical Sensing

Applied 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, Changjin Yang, Huan Zhao, Lei Liang, Chuantao Zheng, Chen Chen, Li Qin, Hui Tang   +7 more
doaj   +1 more source

Refraction in Media with a Negative Refractive Index [PDF]

Physical Review Letters, 2003
5 pages, 4 figures, submitted to Phys.
Foteinopoulou, S., Economou, E. N., Soukoulis, C. M.   +2 more
openaire   +3 more sources

Equipment Calibration Method for Seawater Refractive Index Based on Distilled Water

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

Microwaves reduce water refractive index

Scientific 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, Tomoisa Maeda, Takahiro Takai, Anita Hyde, Chi Phan, Shinya Ito, Shuji Taue   +6 more
doaj   +1 more source

Liquid core photonic quasi-crystal fiber plasmonic refractive index sensor for wide refractive index detection range

Advanced Electromagnetics, 2022
In this paper, a photonic quasi-crystal fiber plasmonic refractive index sensor is numerically analyzed. The fiber core is infiltrated with six hypothetical liquids, which refractive indices of them vary from 1.44 to 1.49. The reason for filling the core
S. Shoar Ghaffari, S. Makouei
doaj   +1 more source