Exciton dynamics studied via internal THz transitions

R. A. Kaindl; D. Hägele; M. A. Carnahan; R. Lövenich; D. S. Chemla

doi:10.1002/pssb.200303161

Exciton dynamics studied via internal THz transitions

R. A. Kaindl, D. Hägele, M. A. Carnahan, R. Lövenich, D. S. Chemla

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	451-454
Number of pages	4
Journal	Physica Status Solidi (B) Basic Research
Volume	238
Issue number	3
DOIs	https://doi.org/10.1002/pssb.200303161
State	Published - Aug 2003
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/pssb.200303161

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AU - Kaindl, R. A.

AU - Hägele, D.

AU - Carnahan, M. A.

AU - Lövenich, R.

AU - Chemla, D. S.

PY - 2003/8

Y1 - 2003/8

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AB - 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.

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JO - Physica Status Solidi (B) Basic Research

JF - Physica Status Solidi (B) Basic Research

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ER -

Exciton dynamics studied via internal THz transitions

Abstract

ASJC Scopus subject areas

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