Terahertz nonlinear optics using intra‐excitonic quantum well transitions: Sideband generation and AC Stark splitting | Zendy

Wagner Martin | Zendy; Schneider Harald | Zendy; Stehr Dominik | Zendy; Winnerl Stephan | Zendy; Andrews Aaron M. | Zendy; Schartner Stephan | Zendy; Strasser Gottfried | Zendy; Helm Manfred | Zendy

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Terahertz nonlinear optics using intra‐excitonic quantum well transitions: Sideband generation and AC Stark splitting

Author(s) -

Wagner Martin,

Schneider Harald,

Stehr Dominik,

Winnerl Stephan,

Andrews Aaron M.,

Schartner Stephan,

Strasser Gottfried,

Helm Manfred

Publication year - 2011

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.201000832

Subject(s) - sideband , terahertz radiation , physics , laser , stark effect , narrowband , quantum well , exciton , far infrared laser , optoelectronics , nonlinear optics , terahertz spectroscopy and technology , optics , condensed matter physics , electric field , quantum mechanics , microwave

We present experiments investigating nonlinear optics in the terahertz (THz) range related to the 1s–2p intra‐excitonic heavy‐hole transition in GaAs/AlGaAs multiquantum wells (MQWs). Driven by intense THz fields of the Dresden free‐electron laser the system exhibits two different phenomena: (i) we observe efficient near‐infrared (NIR) sideband generation as a perturbative effect in the transmission of a narrowband NIR laser, and (ii) we present unambiguous evidence for the intra‐excitonic Autler–Townes splitting, a non‐perturbative effect.

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