InAsSb strained-layer superlattices for long wavelength detector applications

1984 ◽  
Vol 2 (2) ◽  
pp. 176 ◽  
Author(s):  
G. C. Osbourn
Keyword(s):  
Strained Layer ◽  
Long Wavelength ◽  
Wavelength Detector ◽  
Strained Layer Superlattices

III–V strained layer supperlattices for long‐wavelength detector applications: Recent progress

1987 ◽  
Vol 5 (5) ◽  
pp. 3150-3152 ◽  
Author(s):  
G. C. Osbourn ◽  
L. R. Dawson ◽  
R. M. Biefeld ◽  
T. E. Zipperian ◽  
I. J. Fritz ◽  
...  
Keyword(s):  
Recent Progress ◽  
Strained Layer ◽  
Long Wavelength ◽  
Wavelength Detector

scholarly journals Development of Infrared Detectors Based on Type II, InAsSb Strained-Layer Superlattices

1990 ◽  
Vol 216 ◽  
Author(s):  
Steven R. Kurtz
Keyword(s):  
Electronic Properties ◽  
Infrared Detectors ◽  
Type Ii ◽  
Strained Layer ◽  
Long Wavelength ◽  
Photovoltaic Detectors ◽  
Strained Layer Superlattices

ABSTRACTAn overview is provided of long wavelength, photovoltaic detectors constructed with type II (also known as “staggered”), III-V superlattices. Specifically, the electronic properties of InAsSb strained-layer superlattices and prototype detectors utilizing these structures are described.

Laser and photoluminescence spectra of InGaAs–GaAs strained-layer superlattices

1989 ◽  
Vol 67 (4) ◽  
pp. 394-399 ◽  
Author(s):  
N. E. J. Hunt ◽  
P. E. Jessop ◽  
B. K. Garside ◽  
R. L. S. Devine
Keyword(s):  
Low Power ◽  
Laser Emission ◽  
Optical Gain ◽  
Stimulated Emission ◽  
Nitrogen Laser ◽  
Strained Layer ◽  
Long Wavelength ◽  
Strained Layer Superlattices ◽  
Two Peaks ◽  
Hole Transition

Photoluminescence (PL) and laser emission from optically excited InxGa1−xAs–GaAs strained-layer superlattices (SLS) grown by molecular-beam epitaxy have been examined. In low-intensity PL, a single, narrow (≈5 nm FWHM) emission peak was observed, corresponding to the n = 1 electron to heavy-hole transition. This feature, as well as a series of higher energy transitions, was also observed in absorption and photoreflectance spectra. High-intensity PL, using a pulsed nitrogen laser for excitation, yielded an additional peak, several millielectronvolts lower in energy than the dominant low-power PL feature. Optical-gain measurements were performed using the variable stripe-length method. The stimulated emission emerging from the single cleaved end was shifted to the long-wavelength side of the low-power PL peak, and in the case of the narrower well samples, the emission consisted of two peaks separated by about 8 meV. Lasing at these gain positions was observed when ≈400 μm long chips were prepared and their lengths were pumped with a stripe of nitrogen laser light. The observed gain spectrum has been attributed to a combination of a free-carrier-induced bandgap shift and self-absorption by unpumped material deeper within the SLS waveguide.

scholarly journals Impact of growth temperature on InAs/GaInSb strained layer superlattices for very long wavelength infrared detection

2012 ◽  
Vol 101 (17) ◽  
pp. 171105 ◽  
Author(s):  
H. J. Haugan ◽  
G. J. Brown ◽  
S. Elhamri ◽  
W. C. Mitchel ◽  
K. Mahalingam ◽  
...  
Keyword(s):  
Growth Temperature ◽  
Infrared Detection ◽  
Strained Layer ◽  
Long Wavelength ◽  
Strained Layer Superlattices ◽  
Long Wavelength Infrared

Si-Ge STRAINED LAYER SUPERLATTICES

1987 ◽  
Vol 48 (C5) ◽  
pp. C5-321-C5-327 ◽  
Author(s):  
H. BRUGGER ◽  
G. ABSTREITER
Keyword(s):  
Strained Layer ◽  
Strained Layer Superlattices

nBn structure based on InAs∕GaSb type-II strained layer superlattices

2007 ◽  
Vol 91 (4) ◽  
pp. 043514 ◽  
Author(s):  
J. B. Rodriguez ◽  
E. Plis ◽  
G. Bishop ◽  
Y. D. Sharma ◽  
H. Kim ◽  
...  
Keyword(s):  
Type Ii ◽  
Strained Layer ◽  
Strained Layer Superlattices

Space-charge effects in type-II strained layer superlattices

1998 ◽  
Vol 184-185 ◽  
pp. 728-731 ◽  
Author(s):  
I.V. Bradley ◽  
J.P. Creasey ◽  
K.P. O'Donnell
Keyword(s):  
Space Charge ◽  
Type Ii ◽  
Space Charge Effects ◽  
Charge Effects ◽  
Strained Layer ◽  
Strained Layer Superlattices

On the Existence of Multiple Equilibrium States in Strained-Layer Superlattices

1987 ◽  
Vol 103 ◽  
Author(s):  
William C. Johnson
Keyword(s):  
Free Energy ◽  
Equilibrium State ◽  
Stable Equilibrium ◽  
Multiple Equilibrium ◽  
Equilibrium Thermodynamic ◽  
Relative Thickness ◽  
Two Phase ◽  
Strained Layer ◽  
Strained Layer Superlattice ◽  
Strained Layer Superlattices

ABSTRACTUsing recent results from the thermodynamics of stressed solids, two-phase coexistence in a simple binary strained-layer superlattice is examined. We show that for a given temperature and overall composition of the superlattice, there can exist more than one linearly stable, equilibrium thermodynamic state. That is, there may exist several combinations of relative thickness of the phases and corresponding phase compositions that minimize the free energy of the system. The equilibrium state observed experimentally can, therefore, be influenced by the processing path.

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