Results 21 to 30 of about 179,626 (313)

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

Cure monitoring of a UV cured epoxy resin using a long period grating Mach- Zehnder interferometer [PDF]

open access: yes, 2007
A cascaded long period grating Mach-Zehnder interferometer is used to monitor the change in refractive index of a UV cured epoxy resin over a cure cycle.
Richard P. Murphy   +7 more
core   +1 more source

Terahertz Computed Tomography of High-Refractive-Index Objects Based on Refractive Index Matching

open access: yesIEEE Photonics Journal, 2018
Terahertz (THz) computed tomography (CT) is a promising technique to obtain the internal information of objects due to its properties of nonionizing and high penetration of nonpolar objects. However, THz CT is hindered by the strong refractive effect and
Linyu Chen   +9 more
doaj   +1 more source

Mode dispersion and delay characteristics of optical waveguides using equivalent TL circuits [PDF]

open access: yes, 2005
A new analysis leading to an exact and efficient algorithm is presented for calculating directly and without numerical differentiation the mode dispersion characteristics of cylindrical dielectric waveguides of arbitrary refractive-index profile. The new
Boucouvalas, Anthony C., Qian, Xin
core   +1 more source

Measuring the Refractive Index and Its Two-Dimensional Distribution of Picoliter Microfluidics With the Scanning White Light Interference Microscopy Method

open access: yesIEEE Access, 2020
Measurements on refractive index and its distribution of microfluidics are widely applied in the field of biological detection, chemical analysis, material researches, medical diagnostics, and lab on a chip. Since the volume of the microfluidics is ultra-
Mengrou Xia   +5 more
doaj   +1 more source

Photonic crystal fiber half-taper probe based refractometer [PDF]

open access: yes, 2014
A compact singlemode - photonic crystal fiber - singlemode fiber tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving technique is utilised to provide a clean-cut fiber tip which is then coated by a layer of gold to ...
Bo, Lin   +8 more
core   +1 more source

Highly Sensitive Dual-Core PCF Based Plasmonic Refractive Index Sensor for Low Refractive Index Detection

open access: yesIEEE Photonics Journal, 2019
A highly sensitive surface plasmon resonance (SPR) sensor on a dual-core photonic crystal fiber (PCF) for low refractive index (RI) detection is presented in this paper. Plasmonic material silver (Ag) is deposited outside of the fiber structure to detect
Emranul Haque   +5 more
doaj   +1 more source

Vacuum measurement of He based on Fabry-Perot cavity and constant pressure reference

open access: yesMeasurement: Sensors, 2021
In order to reduce the uncertainty of the gas refractive index measurement device based on laser interferometry. A measuring method based on constant pressure reference point was proposed.
Wenjie Jia   +5 more
doaj   +1 more source

Design and analysis of an ultra-high sensitive and tunable metal-insulator-metal waveguide-coupled octagonal ring resonator utilizing gold nanorods

open access: yesSensing and Bio-Sensing Research, 2022
In this research paper, we propose a refractive index (RI) based plasmonic nanosensor comprising of metal-insulator-metal (MIM) waveguide and octagonal resonator embedded with gold nanorods.
Nasir Muhammad Munim   +3 more
doaj   +1 more source

Retrieving microphysical properties of dust-like particles using ellipsoids: the case of refractive index [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
Distributions of ellipsoids are often used to simulate the optical properties of non-ellipsoidal atmospheric particles, such as dust. In this work, the applicability of ellipsoids for retrieving the refractive index of dust-like target model particles ...
O. Kemppinen   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy