Zobrazeno 1 - 10
of 76
pro vyhledávání: '"John D. Bruno"'
Autor:
Gregory Belenky, Sergey Suchalkin, Frederick J. Towner, D. Westerfeld, Richard L. Tober, John D. Bruno, J. T. Pham
Publikováno v:
IEEE Journal of Quantum Electronics. 44:561-566
A segmented contact method for the measurement of optical gain is developed for the case of strong current spreading. A simple model of current spreading in a ridge laser with a segmented contact is proposed and analyzed. We show that current spreadi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d52e483d5aeea657a3f9a2b14e4d3302
https://doi.org/10.1109/jqe.2008.917972
https://doi.org/10.1109/jqe.2008.917972
Autor:
Kim Olver, D.E. Wortman, J.M. Gomes, C. J. Monroy, J. T. Pham, Frederick J. Towner, J.L. Bradshaw, John D. Bruno, Nicholas Breznay, Richard L. Tober
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 20:479-485
Type-II interband cascade lasers combine the advantage of an interband optical transition with interband tunneling to enable the cascading of type-II quantum well active regions as is done in type-I quantum cascade laser. The relatively high radiativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61003f3773dbbb83921373946576c9c4
https://doi.org/10.1016/j.physe.2003.08.063
https://doi.org/10.1016/j.physe.2003.08.063
Publikováno v:
IEEE Journal of Quantum Electronics. 38:559-568
Interband cascade (IC) lasers that utilize optical transitions between the conduction and valence bands in a staircase of Sb-based type-II quantum wells (QWs) represent a new class of mid-IR diode lasers. By combining the advantages of quantum cascad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58add33c1c1cf54357e95eb75ee5394e
https://doi.org/10.1109/jqe.2002.1005406
https://doi.org/10.1109/jqe.2002.1005406
Publikováno v:
IEEE Journal of Quantum Electronics. 37:282-289
High-performance mid-infrared type-II interband cascade lasers have been demonstrated under continuous-wave (CW) conditions with record-high wall-plug efficiencies (>14%) and output powers (>100 mW/facet) above 77 K. Device characteristics of these t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::135a7dff19f2336f6127382ad2c51b85
https://doi.org/10.1109/3.903079
https://doi.org/10.1109/3.903079
Publikováno v:
IEE Proceedings - Optoelectronics. 147:177-180
Continuous wave operation of interband cascade lasers based on type-II InAs/Ga(In)Sb heterostructures is reported. The interband cascade lasers, consisting of 23 cascaded active regions, lased at wavelengths near 4 /spl mu/m. Continuous wave operatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0284488f945207a51dd895eb7e1fb772
https://doi.org/10.1049/ip-opt:20000299
https://doi.org/10.1049/ip-opt:20000299
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 7:69-75
Interband cascade (IC) lasers take advantage of the broken-gap alignment in type-II InAs/Ga(In)Sb heterostructures to reuse electrons for sequential photon emissions from successively connected active regions; thus, they represent a new class of mid-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c2efd2f5a448d5223c4ff75549176b3
https://doi.org/10.1016/s1386-9477(99)00280-5
https://doi.org/10.1016/s1386-9477(99)00280-5
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 6:335-338
We have observed unusual negative differential-conductance features in the magneto-tunneling current–voltage characteristics of GaSb–AlSb–InAs–AlSb–GaSb heterostructures. These features are very narrow (∼2 mV) and shift to higher voltage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce58bd7034c5fa5ef2564e75ff1b1b30
https://doi.org/10.1016/s1386-9477(99)00173-3
https://doi.org/10.1016/s1386-9477(99)00173-3
Autor:
John D. Bruno, Richard L. Tober
Publikováno v:
Journal of Applied Physics. 85:2221-2228
The quantum-confined Stark effect is studied in a single In.15Ga.85As quantum well embedded within the intrinsic region of a (111)B GaAs p-i-n diode structure. An expression for the density of quasibound quantum well states is derived and used to det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5661246db786f5eaed61d281b39f5e46
https://doi.org/10.1063/1.369530
https://doi.org/10.1063/1.369530
Autor:
Richard L. Tober, John D. Bruno, Gregory Belenky, Mikhail V. Kisin, Sergey Suchalkin, Serge Luryi, Frederick J. Towner
Publikováno v:
IEEE Photonics Technology Letters. 19:360-362
Stark modulation of the wavelength of a midinfrared tunable interband cascade laser was studied. Wavelength modulation at frequencies exceeding 1 GHz was demonstrated. Estimates of capacitances inherent to the laser's structure suggested that improve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7de4674e79eaaecd103c53e437a28d0
https://doi.org/10.1109/lpt.2007.891649
https://doi.org/10.1109/lpt.2007.891649
Publikováno v:
Quantum Sensing and Nanophotonic Devices X.
Two areas of current activity in the Earth sciences are the development of ground-based sensor networks and sensor payloads for unmanned aircraft. This paper reviews a few of our sensor development efforts, highlighting how design elements meet speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34de1efa9849de5d95f848d58ba09759
https://doi.org/10.1117/12.2006905
https://doi.org/10.1117/12.2006905