Zobrazeno 1 - 10
of 241
pro vyhledávání: '"E. E. Mendez"'
Publikováno v:
AIP Coference Proceedings. 780:431-434
We have found strong deviations from Poissonian behavior in the low‐temperature noise characteristics of triple‐barrier and superlattice heterostructures. Although our results can be explained qualitatively by existing models, a quantitative comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4fcb3c07b1952709355fa67ebf7ec1
http://hdl.handle.net/10097/51590
http://hdl.handle.net/10097/51590
Autor:
Yu. B. Vasilyev, M. V. Baidakova, Y. Lin, P. S. Kop’ev, B. Ya. Meltser, V. A. Solov’ev, A. N. Semenov, Sergei Ivanov, E. E. Mendez
Publikováno v:
Solid State Communications. 124:323-326
We report the realization of multi-period devices in which each period consists of two-dimensional electron and hole layers whose effective distance is controlled by an external bias. The current–voltage characteristics of devices based on InAs/Alx
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf433bbb353bcd2d553bfef1b519ca9b
https://doi.org/10.1016/s0038-1098(02)00544-6
https://doi.org/10.1016/s0038-1098(02)00544-6
Publikováno v:
physica status solidi (a). 190:615-623
The spin-dependent exciton-exciton interactions in GaAs quantum well (QW) systems have been studied, under resonant and non-resonant excitation conditions at liquid helium temperatures. In the former case, a pure exciton gas is created, whereas in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70cf03f9d5a3ca8531766fe70736c580
https://doi.org/10.1002/1521-396x(200204)190:3<615::aid-pssa615>3.0.co
https://doi.org/10.1002/1521-396x(200204)190:3<615::aid-pssa615>3.0.co
Autor:
J. H. Dickerson, E. E. Mendez, Fernando Agulló-Rueda, Andrew A. Allerman, Carlos Pecharromán, S. Manotas
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 13:398-402
We have observed a large coupling between the photonic mode of a microcavity and Stark-localized excitons from a superlattice embedded in it. The coupling is significantly stronger than in comparable microcavities that contain quantum wells solely at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::898ba6349f5aa684761847a40f3bf986
https://doi.org/10.1016/s1386-9477(02)00149-2
https://doi.org/10.1016/s1386-9477(02)00149-2
Publikováno v:
Solid State Communications. 119:259-270
We have studied the dynamics of the light emitted by a semiconductor microcavity paying special attention to the time-evolution of the degree of polarization, ℘ , of the photoluminescence. ℘ depends strongly on the excitation power-density, an ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77a82cbdfcf56d52c8ef37fd6deb7433
https://doi.org/10.1016/s0038-1098(01)00115-6
https://doi.org/10.1016/s0038-1098(01)00115-6
Publikováno v:
Physical Review Letters. 85:397-400
We have observed shot noise in the hopping conduction of two-dimensional carriers confined in a p -type SiGe quantum well at a temperature of 4 K. Moreover, shot noise is suppressed relative to its ''classical'' value 2eI by an amount that depends on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::578cd6e810450c56307d5b3896e36ac3
https://doi.org/10.1103/physrevlett.85.397
https://doi.org/10.1103/physrevlett.85.397
Publikováno v:
physica status solidi (a). 178:539-543
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff6c74651165d2b716fb5158dc72e2de
https://doi.org/10.1002/1521-396x(200003)178:1<539::aid-pssa539>3.0.co
https://doi.org/10.1002/1521-396x(200003)178:1<539::aid-pssa539>3.0.co
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
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 6:169-172
We have used time-resolved photoluminescence spectroscopy to study the light emission dynamics in a semiconductor microcavity as a function of excitation density and exciton-cavity detuning. We paid special attention to polariton spin relaxation by u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0738495c4748179abdc396a8ea6f6f12
https://doi.org/10.1016/s1386-9477(99)00073-9
https://doi.org/10.1016/s1386-9477(99)00073-9
Autor:
J.L. Jimenez, E. E. Mendez
Publikováno v:
Solid State Communications. 110:537-541
We have calculated the optical gain of inter-sub-band quantum cascade lasers based on type II heterostructures such as InAs–GaSb–AlSb, using a model that includes the whole band diagram of the structure as well as the dynamics of all the processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a1809a98b07b5ad2da41725b77ce52e
https://doi.org/10.1016/s0038-1098(99)00141-6
https://doi.org/10.1016/s0038-1098(99)00141-6