Results 1 to 10 of about 403,122 (327)

An Evaluation of Moderate-Refractive-Index Nanoantennas for Enhancing the Photoluminescence Signal of Quantum Dots [PDF]

open access: yesNanomaterials
The use of nanostructures to enhance the emission of single-photon sources has attracted some attention in the last decade due to the development of quantum technologies.
Rafael Ramos Uña   +2 more
doaj   +2 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

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

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

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

open access: yesAdvanced 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

Highly Sensitive D-Shaped Plasmonic Refractive Index Sensor for a Broad Range of Refractive Index Detection

open access: yesIEEE Photonics Journal, 2021
In this paper, an extremely sensitive Photonic Crystal Fiber (PCF) based Surface Plasmon Resonance (SPR) sensor having D-shaped structure has been proposed.
Emranul Haque   +5 more
doaj   +1 more source

Liquid-core low-refractive-index-contrast Bragg fiber sensor [PDF]

open access: yes, 2011
We propose and experimentally demonstrate a low-refractive-index-contrast hollow-core Bragg fiber sensor for liquid analyte refractive index detection. The sensor operates using a resonant sensing principle- when the refractive index of a liquid analyte ...
Hang Qu   +2 more
core   +1 more source

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