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pro vyhledávání: '"Frank Szmulowicz"'
Autor:
Frank Szmulowicz, Gail J. Brown
Publikováno v:
Long Wavelength Infrared Detectors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::812fd64cb28d4124428e3299688621c0
https://doi.org/10.1201/9780429332296-5
https://doi.org/10.1201/9780429332296-5
Publikováno v:
Journal of Crystal Growth. 436:134-137
InAs/InAsSb superlattices (SLs) are being actively explored for infrared detector applications owing to their superior carrier lifetimes. However, antimony (Sb) segregation during growth can alter the properties of the grown material. In this study,
Publikováno v:
Infrared Sensors, Devices, and Applications VII.
There has been great progress in recent years in advancing the state-of-the-art of Ga-free InAs/InAsSb superlattice (SL) materials for infrared detector applications, spurred by the observation of long minority carrier lifetimes in this material syst
Publikováno v:
Journal of Applied Physics. 125:024505
There are continuing efforts to develop type-II superlattice (SL) materials for very long wavelength infrared (VLWIR) detector applications. However, the SLs have high residual electron background doping densities that depend on SL growth conditions,
Publikováno v:
Journal of Applied Physics. 122:185106
Magneto-transport measurements have been made on strain-free In0.25Ga0.75Sb/InAs superlattices grown on GaSb substrates. The superior structural quality of these superlattices compared to older materials in the literature resulted in a much higher re
Autor:
Bruno Ullrich, Said Elhamri, H. J. Haugan, Frank Szmulowicz, Gail J. Brown, William C. Mitchel
Publikováno v:
Journal of Crystal Growth. 311:1897-1900
The mid-infrared 21 A InAs/24 A GaSb superlattices (SLs) designed for the 4 μm cutoff wavelength were grown by molecular beam epitaxy at growth temperatures between 370 and 430 °C in order to reduce residual background carriers. The lowest density
Autor:
Frank Szmulowicz
Publikováno v:
European Journal of Physics. 29:507-515
The Kronig–Penney problem is a textbook example for discussing band dispersions and band gap formation in periodic layered media. For example, in photonic crystals, the behaviour of bands next to the band edges is important for further discussions
Autor:
Gail J. Brown, Bruno Ullrich, Frank Szmulowicz, S. R. Munshi, Donna W. Stokes, Heather J. Haugan, J. C. Wickett
Publikováno v:
physica status solidi c. 4:1702-1706
Using a newly developed envelope function approximation model that includes interface effects, several InAs/GaSb type-II superlattices (SLs) were designed for uncooled mid-infrared detector applications. The 4 micron cutoff could be achieved with sev
Autor:
Frank Szmulowicz
Publikováno v:
Journal of Optics A: Pure and Applied Optics. 9:301-307
The tangent formulation for photonic bandgap materials is used to derive explicit expressions for the energy eigenvalues at the centre and the edge of the Brillouin zone of multi-layer photonic bandgap materials with integer ratios of optical path le
Autor:
Krishnamurthy Mahalingam, Joseph Peoples, S. L. Bowers, Gail J. Brown, Frank Szmulowicz, Heather J. Haugan
Publikováno v:
SPIE Proceedings.
Gallium (Ga)-free InAs/InAsSb superlattices (SLs) are being actively explored for infrared detector applications due to the long minority carrier lifetimes observed in this material system. However, compositional and dimensional changes through antim