AROMA
发表于 2025-3-28 16:38:57
Electric Field Distribution and Low Power Nonlinear Photo-Response of Quantum Well Infrared Photodetfield. It is shown that the above field distribution is responsible to the low power nonlinear photo-response of the QWIP. A comparison of our model with intensity dependent responsivity measurements showed a very good agreement as long as the QWIP is far from saturation.
新娘
发表于 2025-3-28 22:03:51
Calculation and Photoresponse Measurements of the Long-Wavelength IR Absorption in P-Type GaAs/AlGaA the model results, optimized photodetector structures are grown via molecular-beam epitaxy (MBE) and their photoresponse measured. Good experimentaltheoretical agreement is obtained regarding the long-wavelength threshold and absorption shape.
葡萄糖
发表于 2025-3-28 23:47:27
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过份艳丽
发表于 2025-3-29 05:37:10
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设想
发表于 2025-3-29 08:13:18
Peter Kruck,Manfred Helm,Günther Bauer,Joachim F. Nützel,Gerhard Abstreiterndelt sich dabei um Beschreibung von Versuchen mit Würfeln und Rouletten, die man oft zu wiederholen pflegt ; Ergebnisse von vielen solchen Einzelexperimenten, wie z. B. die Anzahl der Würfelwürfe bis zum Erreichen einer großen Augensumme oder die relative Häufigkeit von 6–6-Folgen lassen sich nach
Lymphocyte
发表于 2025-3-29 11:42:10
A. G. U. Perera,W. Z. Shen,S. G. Matsik,H. C. Liu,M. Buchanan,W. J. Schaffndelt sich dabei um Beschreibung von Versuchen mit Würfeln und Rouletten, die man oft zu wiederholen pflegt ; Ergebnisse von vielen solchen Einzelexperimenten, wie z. B. die Anzahl der Würfelwürfe bis zum Erreichen einer großen Augensumme oder die relative Häufigkeit von 6–6-Folgen lassen sich nach
不溶解
发表于 2025-3-29 15:51:01
Short (λ∼3.4μM) and Long (λ∼11.5μM) Wavelength Room Temperature Quantum Cascade Lasersperation of these lasers up to T=280K is reported with a high T.. Continuous wave powers as high as 120mW are reported at cryogenic temperatures (15K). We show in this paper that high temperature operation (T=320K) of quantum cascade lasers can be extended to wavelengths down to 11.5μm with high per
现实
发表于 2025-3-29 21:26:26
Quantum Fountain Intersubband Laser at 15.5 μm Wavelength in GaAs/AlGaAs Quantum Wells. is based on optical pumping of a three-bound-state coupled quantum well structure in the GaAs/AlGaAs material system. The lasing transition occurs between the two excited states. Population inversion is achieved by benefiting from a LO-phonon resonance between the two lower subbands. The optical pu
使乳化
发表于 2025-3-30 01:26:34
Quantum Cascade Electroluminescence in the GaAs/AIGaAs Material Systemstem. We report the detailed characterization of the emitter structure including current-voltage, mid-infrared photocurrent and luminescence measurements. The optical output power of the LED for typical drive-current densities of 1 kA/cm. is in the ten nanowatt range.
abnegate
发表于 2025-3-30 04:32:12
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