THz electromagnetic emission by coherent infrared-active phonons


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DEKORSY, Thomas, Holger AUER, Huib J. BAKKER, Hartmut G. ROSKOS, Heinrich KURZ, 1996. THz electromagnetic emission by coherent infrared-active phonons. In: Physical Review B. 53(7), pp. 4005-4014

@article{Dekorsy1996elect-5257, title={THz electromagnetic emission by coherent infrared-active phonons}, year={1996}, doi={10.1103/PhysRevB.53.4005}, number={7}, volume={53}, journal={Physical Review B}, pages={4005--4014}, author={Dekorsy, Thomas and Auer, Holger and Bakker, Huib J. and Roskos, Hartmut G. and Kurz, Heinrich} }

<rdf:RDF xmlns:rdf="" xmlns:bibo="" xmlns:dc="" xmlns:dcterms="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dcterms:issued>1996</dcterms:issued> <dc:creator>Kurz, Heinrich</dc:creator> <dcterms:rights rdf:resource=""/> <dc:contributor>Bakker, Huib J.</dc:contributor> <dc:creator>Auer, Holger</dc:creator> <dc:contributor>Dekorsy, Thomas</dc:contributor> <dc:creator>Roskos, Hartmut G.</dc:creator> <dc:format>application/pdf</dc:format> <dc:creator>Dekorsy, Thomas</dc:creator> <dc:contributor>Auer, Holger</dc:contributor> <dcterms:title>THz electromagnetic emission by coherent infrared-active phonons</dcterms:title> <dcterms:bibliographicCitation>First publ. in: Physical Review B 53 (1996), 7, pp. 4005-4014</dcterms:bibliographicCitation> <dc:language>eng</dc:language> <dcterms:abstract xml:lang="eng">Coherent phonons are excited in single-crystal tellurium by above-band-gap excitation with femtosecond laser pulses. Coherent infrared-active lattice vibrations give rise to the emission of electromagnetic waves at the phonon frequency. The excitation mechanism is based on the ultrafast buildup of a photo-Dember field and the coupling of a polar lattice mode to this field. The dynamics of the Dember field is obtained from a numerical simulation of the electron-hole plasma dynamics close to the crystals surface. This effect itself gives rise to a broadband emission of THz radiation from highly absorbing semiconductor surfaces. Details of the generation and the outcoupling of the radiation are discussed.</dcterms:abstract> <dc:rights>deposit-license</dc:rights> <dcterms:available rdf:datatype="">2011-03-24T14:54:24Z</dcterms:available> <dc:contributor>Kurz, Heinrich</dc:contributor> <dc:date rdf:datatype="">2011-03-24T14:54:24Z</dc:date> <dc:creator>Bakker, Huib J.</dc:creator> <dc:contributor>Roskos, Hartmut G.</dc:contributor> <bibo:uri rdf:resource=""/> </rdf:Description> </rdf:RDF>

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