Characterizing intra-exciton Coulomb scattering in terahertz excitations
An intense terahertz field is applied to excite semiconductor quantum wells yielding strong non-equilibrium exciton distributions. Even though the relaxation channels involve a complicated quantum kinetics of Coulomb and phonon effects, distinct relaxation signatures of Coulomb scattering are identi...
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| Veröffentlicht in: | Applied physics letters 2014-11, Vol.105 (20) |
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| container_title | Applied physics letters |
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| creator | Zybell, S. Bhattacharyya, J. Winnerl, S. Eßer, F. Helm, M. Schneider, H. Schneebeli, L. Böttge, C. N. Kira, M. Koch, S. W. Andrews, A. M. Strasser, G. |
| description | An intense terahertz field is applied to excite semiconductor quantum wells yielding strong non-equilibrium exciton distributions. Even though the relaxation channels involve a complicated quantum kinetics of Coulomb and phonon effects, distinct relaxation signatures of Coulomb scattering are identified within time-resolved photoluminescence by comparing the experiment with a reduced model that contains all relevant microscopic processes. The analysis uncovers a unique time scale for the Coulomb scattering directly from experiments and reveals the influence of phonon relaxation as well as radiative decay. |
| doi_str_mv | 10.1063/1.4902431 |
| format | Article |
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The analysis uncovers a unique time scale for the Coulomb scattering directly from experiments and reveals the influence of phonon relaxation as well as radiative decay.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4902431</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; COULOMB SCATTERING ; EQUILIBRIUM ; EXCITATION ; Excitons ; PHONONS ; PHOTOLUMINESCENCE ; QUANTUM WELLS ; RADIATIVE DECAY ; RELAXATION ; Scattering ; SEMICONDUCTOR MATERIALS ; THZ RANGE ; TIME RESOLUTION</subject><ispartof>Applied physics letters, 2014-11, Vol.105 (20)</ispartof><rights>2014 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c285t-65f7bc44c353d980f584d8b8fb1e32eae310fdbc588a566a84d01f44ec4c19dc3</citedby><cites>FETCH-LOGICAL-c285t-65f7bc44c353d980f584d8b8fb1e32eae310fdbc588a566a84d01f44ec4c19dc3</cites><orcidid>0000-0003-2890-9550</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22391992$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Zybell, S.</creatorcontrib><creatorcontrib>Bhattacharyya, J.</creatorcontrib><creatorcontrib>Winnerl, S.</creatorcontrib><creatorcontrib>Eßer, F.</creatorcontrib><creatorcontrib>Helm, M.</creatorcontrib><creatorcontrib>Schneider, H.</creatorcontrib><creatorcontrib>Schneebeli, L.</creatorcontrib><creatorcontrib>Böttge, C. 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The analysis uncovers a unique time scale for the Coulomb scattering directly from experiments and reveals the influence of phonon relaxation as well as radiative decay.</description><subject>Applied physics</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COULOMB SCATTERING</subject><subject>EQUILIBRIUM</subject><subject>EXCITATION</subject><subject>Excitons</subject><subject>PHONONS</subject><subject>PHOTOLUMINESCENCE</subject><subject>QUANTUM WELLS</subject><subject>RADIATIVE DECAY</subject><subject>RELAXATION</subject><subject>Scattering</subject><subject>SEMICONDUCTOR MATERIALS</subject><subject>THZ RANGE</subject><subject>TIME RESOLUTION</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpFkEtLAzEUhYMoWKsL_8GAKxdTc_OYJksZtBUKbnQdMpnEprSTmqSg_fWmD3B17-V-nHM4CN0DngBu6BNMmMSEUbhAI8DTaU0BxCUaYYxp3UgO1-gmpVU5OaF0hObtUkdtso1-74evyg856tr-GJ_DULVhtw6brkpG5wNyBKqy6aWNeV8dOZ19GNItunJ6nezdeY7R5-vLRzuvF--zt_Z5URsieK4b7qadYcxQTnspsOOC9aITrgNLidWWAnZ9Z7gQmjeNLl8MjjFrmAHZGzpGDyfdkLJXqfhbszRhGKzJihAqQUryT21j-N7ZlNUq7OJQgikCpOG42IhCPZ4oE0NK0Tq1jX6j468CrA51KlDnOukfCT9nBQ</recordid><startdate>20141117</startdate><enddate>20141117</enddate><creator>Zybell, S.</creator><creator>Bhattacharyya, J.</creator><creator>Winnerl, S.</creator><creator>Eßer, F.</creator><creator>Helm, M.</creator><creator>Schneider, H.</creator><creator>Schneebeli, L.</creator><creator>Böttge, C. 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| ispartof | Applied physics letters, 2014-11, Vol.105 (20) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COULOMB SCATTERING EQUILIBRIUM EXCITATION Excitons PHONONS PHOTOLUMINESCENCE QUANTUM WELLS RADIATIVE DECAY RELAXATION Scattering SEMICONDUCTOR MATERIALS THZ RANGE TIME RESOLUTION |
| title | Characterizing intra-exciton Coulomb scattering in terahertz excitations |
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