Zobrazeno 1 - 10
of 41
pro vyhledávání: '"R. A. Soref"'
Publikováno v:
Optics Express. 30:42385
We propose a lattice-matched Ge/GeSiSn quantum cascade detector (QCD) capable of operating in the longwave infrared. The optical absorption and carrier transport based on intersubband transitions all occur within the L-valley of the conduction band o
The objective of this research was to develop 1) direct-bandgap Sn-based group-IV material with very low defect densities and 2) a new type of Sn-based group-IV light-emitting diode (LED) structure. Optimization of traditional and hetero- P-i-N struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79822976529bf6c4530a76968c9bf6f6
https://doi.org/10.21236/ada615859
https://doi.org/10.21236/ada615859
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 7:376-380
The first phonon-pumped semiconductor laser has been proposed and theoretically investigated. The active region is an unbiased boron-doped Si/sub 0.94/Ge/sub 0.06/-Si superlattice with Si/sub 0.97/Ge/sub 0.03/ buffer layers embedded in a surface-plas
Publikováno v:
Physical Review B. 57:6550-6560
Publikováno v:
Superlattices and Microstructures. 22:3-7
Because of the absence of polar optical phonon scattering, the lifetime difference of the upper and lower lasing levels, to which population inversion and laser gain are proportional, is an order of magnitude larger in silicon-based structures than i
This is the final report of a project to fabricate tin-based IV-IV semiconductor compounds for obtaining direct bandgap material.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2be97308a1393bcbbd1fa5323ab9f6d3
https://doi.org/10.21236/ada530763
https://doi.org/10.21236/ada530763
Autor:
R. A. Soref, A. R. Nelson
Publikováno v:
Applied optics. 16(1)
An extensive theoretical analysis of an electrooptic polarization switch has been carried out. The main objective of the study is to ascertain whether it is possible to design such a switch with acceptable levels of optical crosstalk and control volt
Autor:
L. R. Schissler, R. A. Soref
Publikováno v:
Applied optics. 14(11)
Publikováno v:
2010 3rd International Nanoelectronics Conference (INEC).
We report a theoretical investigation on the electrical characteristic of n-type resonance tunneling diode for IV-IV compound. From the analysis, it shows that PVR ratio of the D4 band is significant larger than the D2 band as due to the much smaller
Autor:
R. A. Soref
Publikováno v:
Journal of Applied Physics. 72:626-630
Miller’s delta δ14(2ω) of 0.0172 m2/C is found for β‐SiC at 1.1 μm from the measured Pockels coefficient r41 [Appl. Phys. Lett. 59, 1938 (1991)]. Assuming δ is constant, we estimate that r41 for zincblende SiC, GeC, SiGe, SiSn, GeSn, and SnC