Femtosecond intersubband relaxation and population inversion in stepped quantum well
dc.contributor.author | Sung, C. Y. | en_US |
dc.contributor.author | Norris, Theodore B. | en_US |
dc.contributor.author | Afzali‐kushaa, A. | en_US |
dc.contributor.author | Haddad, George I. | en_US |
dc.date.accessioned | 2010-05-06T22:04:58Z | |
dc.date.available | 2010-05-06T22:04:58Z | |
dc.date.issued | 1996-01-22 | en_US |
dc.identifier.citation | Sung, C. Y.; Norris, T. B.; Afzali‐Kushaa, A.; Haddad, G. I. (1996). "Femtosecond intersubband relaxation and population inversion in stepped quantum well." Applied Physics Letters 68(4): 435-437. <http://hdl.handle.net/2027.42/70388> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/70388 | |
dc.description.abstract | We have investigated intersubband relaxation rates in a stepped quantum well at room temperature using differential transmission spectroscopy with subpicosecond time resolution. The dynamics of the subband populations are derived from the experimentally observed reduction of oscillator strength of the corresponding exciton transitions. In the stepped quantum well the relaxation through longitudinal optical‐phonon emission from n=3 to 1 (25 ps) is slower than that from 2 to 1 (220 fs), due to the reduced wave function overlap and larger wave vector required for intersubband scattering. When the n=3 state is pumped, a population inversion between n3 and n2 (which are separated by 7 THz) is observed. © 1996 American Institute of Physics. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 80505 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Femtosecond intersubband relaxation and population inversion in stepped quantum well | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Center for Ultrafast Optical Science, 1006 2200 Bonisteel Blvd./IST, Ann Arbor, Michigan 48109 | en_US |
dc.contributor.affiliationum | EECS Department, The University of Michigan, Ann Arbor, Michigan 48109 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/70388/2/APPLAB-68-4-435-1.pdf | |
dc.identifier.doi | 10.1063/1.116404 | en_US |
dc.identifier.source | Applied Physics Letters | en_US |
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dc.owningcollname | Physics, Department of |
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