Contribution of free carriers to light absorption upon intense light-semiconductor interaction
Hollinger R, Haddad E, Zapf M, Shumakova V, Herrmann P, Roeder R, Uschmann I, Reisloehner U, Pugzlys A, Baltuska A, Legare F, Zuerch M, Ronning C, Spielmann C, Kartashov D (2021)
Publication Type: Conference contribution
Publication year: 2021
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Event location: Munich, DEU
ISBN: 9781665418768
DOI: 10.1109/CLEO/Europe-EQEC52157.2021.9541549
Abstract
In this work we investigated the role of free carriers in the interaction of a wide-band gap semiconductor with strong light fields at long wavelengths. Motivated by the beneficial scaling law of the pondermotive potential (U p Iλ 2 ), the interaction of intense long wavelength laser pulses with condensed matter has attracted huge attention over the last decade [Kruchinin]. After excitation of quasi free electrons in the conduction band (CB) via multiphoton absorption or tunnelling the strong pondermotive force leads to highly energetic free electrons. Bound electrons can be collisionally excited if the energy of the free electrons exceed the band gap energy. Here, we use the onset of near ultraviolet (NUV) stimulated emission in ZnO thin films ( Fig. 1a ) to study off-resonance light absorption and the role of free carriers thereby.
Involved external institutions
Friedrich-Schiller-Universität Jena
Germany (DE)
The Énergie Matériaux Télécommunications (Energy Materials Telecommunications) Research Centre
Canada (CA)
Technische Universität Wien / Vienna University of Technology
Austria (AT)
Germany (DE)
The Énergie Matériaux Télécommunications (Energy Materials Telecommunications) Research Centre
Canada (CA)
Technische Universität Wien / Vienna University of Technology
Austria (AT)
How to cite
APA:
Hollinger, R., Haddad, E., Zapf, M., Shumakova, V., Herrmann, P., Roeder, R.,... Kartashov, D. (2021). Contribution of free carriers to light absorption upon intense light-semiconductor interaction. In 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021. Munich, DEU: Institute of Electrical and Electronics Engineers Inc..
MLA:
Hollinger, Richard, et al. "Contribution of free carriers to light absorption upon intense light-semiconductor interaction." Proceedings of the 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021, Munich, DEU Institute of Electrical and Electronics Engineers Inc., 2021.
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