Zobrazeno 1 - 10
of 132
pro vyhledávání: '"T. C. Damen"'
Autor:
Jagdeep Shah, Loren Pfeiffer, Hartmut Haug, A. L. Ivanov, L. V. Keldysh, T. C. Damen, Hailin Wang
Publikováno v:
Physical Review B. 56:3941-3951
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbd632a9f7cd21e69a20f92e444b952f
https://doi.org/10.1103/physrevb.56.3941
https://doi.org/10.1103/physrevb.56.3941
Publikováno v:
Solid State Communications. 98:807-811
Resonantly-excited photoluminescence (PL) of excitonic molecules with femtosecond resolution reveals a surprising initial transient characterized by a finite rise and an extremely fast non-exponential decay. We show that this initial transient stems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e4085f405573cc4e79323046349434a
https://doi.org/10.1016/0038-1098(96)00135-4
https://doi.org/10.1016/0038-1098(96)00135-4
Autor:
J. E. Cunningham, Hailin Wang, W. Y. Jan, Minghwei Hong, T. C. Damen, Jagdeep Shah, Joseph Petrus Mannaerts
Publikováno v:
Physical Review B. 51:14713-14716
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a7801d6eac7545b974e90e616eac742
https://doi.org/10.1103/physrevb.51.14713
https://doi.org/10.1103/physrevb.51.14713
Publikováno v:
physica status solidi (b). 188:381-386
Investigations of femtosecond dynamics of excitons in two different regimes are reported: 1. perturbative or weak coupling regime where the exciton decay is irreversible (i.e. excitons in quantum wells), and 2. non-perturbative or strong coupling reg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c837da10089cb55b949e34deb059f9f
https://doi.org/10.1002/pssb.2221880135
https://doi.org/10.1002/pssb.2221880135
Publikováno v:
Solid State Communications. 91:869-874
Using the unique polarization selection rule for the biexcitonic transition we demonstrate conclusively the dominant effects of the biexciton-induced two-photon coherence on polarization-dependent four-wave-mixing in GaAs quantum wells. We also show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7eccb896ed4c8ed5b654759f1c761097
https://doi.org/10.1016/0038-1098(94)90004-3
https://doi.org/10.1016/0038-1098(94)90004-3
Publikováno v:
Solid State Communications. 88:189-193
We have simultaneously investigated various processes contributing to the initial dynamics of resonantly-excited excitons in quantum wells. A unified analysis of the results provides quantitative information on different scattering rates and exciton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55c3eb24f987e05674ae43cb575d3393
https://doi.org/10.1016/0038-1098(93)90739-a
https://doi.org/10.1016/0038-1098(93)90739-a
Publikováno v:
Physica Scripta. :464-469
We have determined the spin relaxation dynamics of electrons, holes and excitons in GaAs quantum wells by means of subpicosecond studies of the photoluminescence polarization. Our measurements demonstrate that the usual image of instantaneous hole-sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f2d716dccf50b9347330adee4a00cb4
https://doi.org/10.1088/0031-8949/1993/t49b/015
https://doi.org/10.1088/0031-8949/1993/t49b/015
Autor:
J. E. Cunningham, Wilfried Schäfer, S. Schmitt-Rink, M. Hartmann, Dai-Sik Kim, T. C. Damen, Jagdeep Shah
Publikováno v:
Physical Review Letters. 68:1006-1009
We report a strong (300:1) excitonic resonance in time-resolved (100 fs) four-wave mixing in GaAs quantum wells as a function of the incident photon energy and show that it results from the large difference in the dephasing rates of excitons and free
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3744ee43bbbaf4b69194ed304cc4f7a
https://doi.org/10.1103/physrevlett.68.1006
https://doi.org/10.1103/physrevlett.68.1006
Publikováno v:
Surface Science. 267:304-309
We review our observations of quantum beats of excitons in quantum wells arising from (i) heavy hole-light hole splitting, (ii) exciton splitting due to fluctuations in the well-width of quantum wells, and (iii) free and bound excitons, using the tec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::542030b42f6ba00497b9b4f87b92fbff
https://doi.org/10.1016/0039-6028(92)91143-y
https://doi.org/10.1016/0039-6028(92)91143-y
Autor:
T. C. Damen, Jay M. Wiesenfeld, M. A. Duguay, Julian Stone, E. A. Caridi, Tallis Y. Chang, Andrew Dentai
Publikováno v:
Optics letters. 6(11)
Ultrashort-cavity, thin-film lasers from In(1-x)Ga(x)As(y)P(1-y) of five different compositions, including InP and In(0.53)Ga(0.47)As, have been made to lase between 0.83 and 1.59 microm. The multitude of lasing wavelengths observed had line-to-line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::095cccd33571a80513b33b8439f742d6
https://pubmed.ncbi.nlm.nih.gov/19710762
https://pubmed.ncbi.nlm.nih.gov/19710762