scholarly journals Comprehensive grating enabled silicon nitridefiber-chip couplers in SNIR wavelength band

2021 ◽  
Author(s):  
Siddharth Nambiar ◽  
Avijit Chatterjee ◽  
Shankar Kumar Selvaraja
Keyword(s):  
Wavelength Band

Up to 98.2% super transmittance and precise modification of wavelength band in vein-like Ag in ITO/Ag/AZO sandwich structure

Solar Energy ◽  
2020 ◽  
Vol 203 ◽  
pp. 240-246
Author(s):  
Ningyu Ren ◽  
Pengfei Shi ◽  
Zilun Sheng ◽  
Ke Zhong ◽  
Hao Du ◽  
...  
Keyword(s):  
Sandwich Structure ◽  
Wavelength Band

scholarly journals Device Modeling of Quantum Dot–Organic Light Emitting Diodes for High Green Color Purity

2021 ◽  
Vol 11 (6) ◽  
pp. 2828
Author(s):  
Byoung-Seong Jeong
Keyword(s):  
Quantum Dot ◽  
Emission Spectrum ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Color Purity ◽  
Wavelength Band ◽  
Light Emitting ◽  
Green Color ◽  
Organic Light

In this study, the optimal structure for obtaining high green color purity was investigated by modeling quantum dot (QD)–organic light-emitting diodes (OLED). It was found that even if the green quantum dot (G-QD) density in the G-QD layer was 30%, the full width at half maximum (FWHM) in the green wavelength band could be minimized to achieve a sharp emission spectrum, but it was difficult to completely block the blue light leakage with the G-QD layer alone. This blue light leakage problem was solved by stacking a green color filter (G-CF) layer on top of the G-QD layer. When G-CF thickness 5 μm was stacked, blue light leakage was blocked completely, and the FWHM of the emission spectrum in the green wavelength band was minimized, resulting in high green color purity. It is expected that the overall color gamut of QD-OLED can be improved by optimizing the device that shows such excellent green color purity.

scholarly journals Stellar Multi-Photon Absorption Materials: Beyond the Telecommunication Wavelength Band

2017 ◽  
Vol 23 (35) ◽  
pp. 8395-8399 ◽  
Author(s):  
Torsten Schwich ◽  
Adam Barlow ◽  
Marie P. Cifuentes ◽  
Janusz Szeremeta ◽  
Marek Samoc ◽  
...  
Keyword(s):  
Photon Absorption ◽  
Wavelength Band ◽  
Telecommunication Wavelength

scholarly journals Bi-doped fiber amplifier with a flat gain of 25  dB operating in the wavelength band 1320–1360  nm

2016 ◽  
Vol 41 (7) ◽  
pp. 1518 ◽  
Author(s):  
N. K. Thipparapu ◽  
A. A. Umnikov ◽  
P. Barua ◽  
J. K. Sahu
Keyword(s):  
Fiber Amplifier ◽  
Wavelength Band ◽  
Flat Gain

An Optimized Wavelength Band Selection for Heavily Pigmented Iris Recognition

2013 ◽  
Vol 8 (1) ◽  
pp. 64-75 ◽  
Author(s):  
Yazhuo Gong ◽  
David Zhang ◽  
Pengfei Shi ◽  
Jingqi Yan
Keyword(s):  
Iris Recognition ◽  
Band Selection ◽  
Wavelength Band ◽  
Selection For

Germanium-tin (Ge1-xSnx) photodetectors for 2 µm wavelength band

2021 ◽  
Author(s):  
Xiao Gong ◽  
Yuan Dong ◽  
Shengqiang Xu ◽  
Wei Wang
Keyword(s):  
Wavelength Band ◽  
Germanium Tin

A NEW METHOD OF PATTERN SHOOTING

Geophysics ◽  
1955 ◽  
Vol 20 (3) ◽  
pp. 539-564 ◽  
Author(s):  
J. O. Parr ◽  
W. H. Mayne
Keyword(s):  
Finite Number ◽  
Finite Length ◽  
Vertical Line ◽  
New Method ◽  
Horizontal Line ◽  
Wavelength Band ◽  
Continuous Band ◽  
Reversed Polarity ◽  
Multiple Detectors ◽  
Horizontal Area

In areas where reflection shooting is difficult, it is often necessary to attenuate the energy in a broad continuous band of disturbing wavelengths to less than a few hundredths of what would be recorded if all units were bunched together. The wavelength band of the attenuated energy should be adjacent to the band of reflection wavelengths received. Attenuation of the undesired energy is best accomplished with multiple detectors or charges. In many areas the pattern should attenuate energy horizontally propagated in all directions, not just in the direction of the detector line. Neither a finite number of uniformly effective, uniformly spaced units in line nor a uniformly effective sheet of finite length will accomplish this result. A system for gradation of the effectiveness of units described in this paper does produce this result (not only for in‐line disturbances but also for disturbances coming in from the side of the line). The attenuation band can be made broad with good attenuation or narrower with still better attenuation, as desired. The variation of effectiveness can be applied to detectors or charges arranged in a horizontal line, over a horizontal area, in a vertical line, or over a vertical area. The principle of varying effectiveness can also be applied to reversed‐polarity detectors in order to accentuate certain apparent wavelengths.

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