Exciton dynamics studied via internal THz transitions
We employ a novel, ultrafast terahertz probe to investigate the dynamical interplay of optically‐induced excitons and unbound electron–hole pairs in GaAs quantum wells. Resonant creation of heavy‐hole excitons induces a new low‐energy oscillator linked to transitions between the internal exciton deg...
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| Veröffentlicht in: | Physica Status Solidi (b) 2003-08, Vol.238 (3), p.451-454 |
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| container_end_page | 454 |
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| container_issue | 3 |
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| container_title | Physica Status Solidi (b) |
| container_volume | 238 |
| creator | Kaindl, R. A. Hägele, D. Carnahan, M. A. Lövenich, R. Chemla, D. S. |
| description | We employ a novel, ultrafast terahertz probe to investigate the dynamical interplay of optically‐induced excitons and unbound electron–hole pairs in GaAs quantum wells. Resonant creation of heavy‐hole excitons induces a new low‐energy oscillator linked to transitions between the internal exciton degrees of freedom. The time‐resolved terahertz optical conductivity is found to be a probe well suited for studies of fundamental processes such as formation, relaxation and ionization of excitons. |
| doi_str_mv | 10.1002/pssb.200303161 |
| format | Article |
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A.</creatorcontrib><creatorcontrib>Hägele, D.</creatorcontrib><creatorcontrib>Carnahan, M. A.</creatorcontrib><creatorcontrib>Lövenich, R.</creatorcontrib><creatorcontrib>Chemla, D. S.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica Status Solidi (b)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kaindl, R. A.</au><au>Hägele, D.</au><au>Carnahan, M. A.</au><au>Lövenich, R.</au><au>Chemla, D. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Exciton dynamics studied via internal THz transitions</atitle><jtitle>Physica Status Solidi (b)</jtitle><addtitle>phys. stat. sol. 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| language | eng |
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| source | Wiley Online Library All Journals |
| subjects | 42.25.Bs 71.35.-y 78.47.+p 78.67.De Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron states Electron-hole drops and electron-hole plasma Exact sciences and technology Excitons and related phenomena Intrinsic properties of excitons optical absorption spectra Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Physics Time-resolved optical spectroscopies and other ultrafast optical measurements in condensed matter |
| title | Exciton dynamics studied via internal THz transitions |
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