Role of a high gain of the medium in superradiance generation and in observation of coherent effects in semiconductor lasers

1999 ◽  
Vol 29 (10) ◽  
pp. 842-846 ◽  
Author(s):  
Petr P Vasil'ev
Keyword(s):  
Semiconductor Lasers ◽  
High Gain ◽  
Coherent Effects

Role of neutral base recombination in high gain AlGaAs/GaAs HBT's

1999 ◽  
Vol 46 (8) ◽  
pp. 1599-1607 ◽  
Author(s):  
R.E. Welser ◽  
N. Pan ◽  
Duy-Phach Vu ◽  
P.J. Zampardi ◽  
B.T. McDermott
Keyword(s):  
High Gain ◽  
Neutral Base

scholarly journals Thermal Remote Sensing for Water Outflows Detection and Determination of the Role of Lineaments in Underground Hydrodynamics of Evia Island, Central Greece

2020 ◽  
Vol 56 (1) ◽  
pp. 100
Author(s):  
Laoura Athanasiadou ◽  
Emmanouil Psomiadis ◽  
Georgios Stamatis
Keyword(s):  
Remote Sensing ◽  
Spectral Band ◽  
High Gain ◽  
Sea Surface ◽  
Thermal Infrared Remote Sensing ◽  
Thermal Images ◽  
Tectonic System ◽  
Carbonate Formations

The coastal karst system of Evia Island is developed due to the extended presence of carbonate formations, discharges into the sea either at the coastal zone or via submarine springs, having a direct relation to the tectonic system of the area. Thermal infrared remote sensing has been proved its capability in monitoring thermal differentiations of coastal water plumes. This work aims to locate the freshwater outflows through remote sensing and specific with the use of Landsat’s 8 thermal images and to reveal how the lineaments of the area control this karstification process. L8 contains two thermal bands (Band 10, high gain and Band 11, low gain) with resolution 30m which record the scattering of infrared radiation from the sea surface. Spectral Band 10 was selected due to the high gain characteristics which provide more suitable radiometric resolution (sensitivity). Finally, combing thermal images with geological maps, sea surface temperature (SST) maps have been created.

scholarly journals Fast photonic information processing using semiconductor lasers with delayed optical feedback: Role of phase dynamics

2014 ◽  
Vol 22 (7) ◽  
pp. 8672 ◽  
Author(s):  
Romain Modeste Nguimdo ◽  
Guy Verschaffelt ◽  
Jan Danckaert ◽  
Guy Van der Sande
Keyword(s):  
Information Processing ◽  
Semiconductor Lasers ◽  
Optical Feedback ◽  
Phase Dynamics ◽  
Delayed Optical Feedback
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