scholarly journals Intense Anti‐Stokes Emission from Erbium Ions in Gallium Lanthanum Sulphide–Oxide Glass in the Visible Spectral Range

2020 ◽  
Vol 217 (24) ◽  
pp. 2000448
Author(s):  
Michail M. Voronov ◽  
Alexander B. Pevtsov ◽  
Alexander P. Skvortsov ◽  
Cyril Koughia ◽  
Chris Craig ◽  
...  
Keyword(s):  
Spectral Range ◽  
Visible Spectral Range ◽  
Oxide Glass ◽  
Erbium Ions ◽  
Gallium Lanthanum Sulphide ◽  
Anti Stokes

scholarly journals MoS2 Based Photodetectors: A Review

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2758
Author(s):  
Alberto Taffelli ◽  
Sandra Dirè ◽  
Alberto Quaranta ◽  
Lucio Pancheri
Keyword(s):  
Electric Fields ◽  
Spectral Range ◽  
Performance Metrics ◽  
Transition Metal Dichalcogenides ◽  
Visible Spectral Range ◽  
Detector Performance ◽  
Strong Light ◽  
Near Ultraviolet ◽  
Passivation Layers ◽  
Low Dimensional

Photodetectors based on transition metal dichalcogenides (TMDs) have been widely reported in the literature and molybdenum disulfide (MoS2) has been the most extensively explored for photodetection applications. The properties of MoS2, such as direct band gap transition in low dimensional structures, strong light–matter interaction and good carrier mobility, combined with the possibility of fabricating thin MoS2 films, have attracted interest for this material in the field of optoelectronics. In this work, MoS2-based photodetectors are reviewed in terms of their main performance metrics, namely responsivity, detectivity, response time and dark current. Although neat MoS2-based detectors already show remarkable characteristics in the visible spectral range, MoS2 can be advantageously coupled with other materials to further improve the detector performance Nanoparticles (NPs) and quantum dots (QDs) have been exploited in combination with MoS2 to boost the response of the devices in the near ultraviolet (NUV) and infrared (IR) spectral range. Moreover, heterostructures with different materials (e.g., other TMDs, Graphene) can speed up the response of the photodetectors through the creation of built-in electric fields and the faster transport of charge carriers. Finally, in order to enhance the stability of the devices, perovskites have been exploited both as passivation layers and as electron reservoirs.

scholarly journals TiN/(Al,Sc)N metal/dielectric superlattices and multilayers as hyperbolic metamaterials in the visible spectral range

2014 ◽  
Vol 90 (12) ◽  
Author(s):  
Bivas Saha ◽  
Gururaj V. Naik ◽  
Sammy Saber ◽  
Cem Akatay ◽  
Eric A. Stach ◽  
...  
Keyword(s):  
Spectral Range ◽  
Visible Spectral Range ◽  
Hyperbolic Metamaterials

scholarly journals Plasmonic lattice Kerker effect in ultraviolet-visible spectral range

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
V. S. Gerasimov ◽  
A. E. Ershov ◽  
R. G. Bikbaev ◽  
I. L. Rasskazov ◽  
I. L. Isaev ◽  
...  
Keyword(s):  
Spectral Range ◽  
Visible Spectral Range

PUCHEROS: a low-cost fiber-fed Echelle Spectrograph for the visible spectral range

2010 ◽  
Author(s):  
Leonardo Vanzi ◽  
Juan A. Chacon ◽  
Maurizio Baffico ◽  
Gerardo Avila ◽  
Carlos Guirao ◽  
...  
Keyword(s):  
Spectral Range ◽  
Low Cost ◽  
Visible Spectral Range ◽  
Echelle Spectrograph
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