Results 31 to 40 of about 3,766,641 (291)

Ultra-Long Range Refractive Index Fiber Sensor

open access: yesFrontiers in Sensors, 2022
The dynamic range of optical fiber refractive index sensors is mainly determined by the refractive index (RI) of the sensor surface in contact with the sample under test.
Carmen E. Domínguez-Flores   +5 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.   +3 more
core   +2 more sources

All-dielectric tunable zero-refractive index metamaterials based on phase change materials

open access: yesReviews on Advanced Materials Science, 2023
We propose a tunable all-dielectric zero-index metamaterial based on phase change material. By constructing the alternating rod structure with phase change material and silica material, the zero-refractive index characteristic is realized.
Yang Zhexi   +7 more
doaj   +1 more source

Indirect transitions of a signal interacting with a moving refractive index front [PDF]

open access: yes, 2014
This research was supported by the German Research Foundation DFG (EI 391/12-2).The dynamic manipulation of light can be achieved by the interaction of a signal pulse propagating through or reflected from a refractive index front.
Munoz, Michel Castellanos   +11 more
core   +1 more source

Denaturation process of laccase in various media by refractive index measurements

open access: yesBiochemistry and Biophysics Reports, 2017
In this work, we are interested in the denaturation process of a laccase from Tramates versicolor via the determination of the refractive index, the refractive index increment and the specific volume in various media.
O. Saoudi   +3 more
doaj   +1 more source

Refractive index of rubber

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   +1 more source

Study of a silica glass SiO2-Na2O refractive index to fabrication of fiber optic with Brewster method

open access: yesJournal of Physics: Theories and Applications, 2019
One of the critical parameters in the fabrication of fiber optic is refractive index value from the fiber optic material. That is because the main requirement phase of critical angle on the fiber optic waveguide is a core refractive index higher than the
Ahmad Aftah Syukron   +1 more
doaj   +1 more source

High Refractive Index Metamaterials by Using Higher Order Modes Resonances of Hollow Cylindrical Nanostructure in Visible Region

open access: yesIEEE Access, 2019
In order to design optical metamaterials to surpass the limitation of unnaturally high refractive index in visible range, we propose the nanocylinders nanostructure with hexagonal close-packed arrangement to precisely control the electric and magnetic ...
Xufeng Jing   +4 more
doaj   +1 more source

The effect of temperature on refractive index of Carbon Disulfide

open access: yesTạp chí Khoa học, 2023
In this paper, the effect of temperature on the refractive index of Carbon disulfide liquid based on the influence of temperature on the Sellmeier coefficient has been presented.
NGUYEN Tien Dung   +4 more
doaj   +1 more source

Artificial intelligence based prediction of refractive index profile of graded refractive index optical fiber

open access: yesICT Express
This research presents a deep neural network (DNN) approach for predicting the refractive index profile in graded-index multimode fibers (GRIN MMFs).
Seung-Yeol Lee, Hyuntai Kim
doaj   +1 more source

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