Momentum-dependent intraband high harmonic generation in a photodoped indirect semiconductor
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00584821" target="_blank" >RIV/68378271:_____/24:00584821 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/24:10483079
Result on the web
<a href="https://hdl.handle.net/11104/0353740" target="_blank" >https://hdl.handle.net/11104/0353740</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s42005-024-01593-x" target="_blank" >10.1038/s42005-024-01593-x</a>
Alternative languages
Result language
angličtina
Original language name
Momentum-dependent intraband high harmonic generation in a photodoped indirect semiconductor
Original language description
Nonlinear optical response of solid-state materials exposed to strong non-resonant light fields leads to the generation of harmonic frequencies as a consequence of interband polarization and coherent intraband dynamics of the electrons. The efficient production of a macroscopic wave requires the preservation of the mutual phase between the driving wave and the individual microscopic sources of radiation. Here, we experimentally and theoretically show that the yield of high harmonic generation in a photodoped silicon crystal is enhanced by the nonlinear intraband current whose amplitude depends not only on the volume density of the photogenerated carriers but also on their momentum distributions within the bands. The strongest enhancement is reached when the carrier system is relaxed to the band minima before interacting with the strong nonresonant wave, which drives the high harmonic generation. These results extend the possibilities of high harmonic spectroscopy towards the investigation of ultrafast carrier relaxation in condensed matter.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
COMMUNICATIONS PHYSICS
ISSN
2399-3650
e-ISSN
2399-3650
Volume of the periodical
7
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
104
UT code for WoS article
001188874300003
EID of the result in the Scopus database
2-s2.0-85188318859