Dynamic-grating-assisted energy transfer between ultrashort laser pulses in lithium niobate
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https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201901241084
https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201901241084
Titel: | Dynamic-grating-assisted energy transfer between ultrashort laser pulses in lithium niobate |
Autor(en): | Nolte, Stefan Bourdon, Bjoern Freytag, Felix Imlau, Mirco Shumelyuk, Alexandr Odoulov, Serguey |
ORCID des Autors: | https://orcid.org/0000-0003-0100-9755 |
Zusammenfassung: | Energy redistribution between two subpicosecond laser pulses of 2.5 eV photon energy is observed and studied in congruent, nominally undoped LiNbO3, aiming to reveal the underlying coupling mechanisms. The dependences of pulse amplification on intensity, frequency detuning and pulse duration point to two different contributions of coupling, both based on self-diffraction from a recorded dynamic grating. The first one is caused by a difference in pulse intensities (transient energy transfer) while the second one originates from a difference in pulse frequencies. The latter appears when chirped pulses are mutually delayed in time. A quite high coupling efficiency has been observed in a 280 µm thin crystal: one order of magnitude energy amplification of a weak pulse and nearly 10% net energy enhancement of one pulse for the case of equal input intensities. |
Bibliografische Angaben: | Optics Express Volume 26, Issue 17, 2018, pp. 21558-21573 |
URL: | https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201901241084 |
Schlagworte: | Subpicosecond laser pulses; Lithium niobate |
Erscheinungsdatum: | 7-Aug-2018 |
Publikationstyp: | Einzelbeitrag in einer wissenschaftlichen Zeitschrift [article] |
Enthalten in den Sammlungen: | FB06 - Hochschulschriften Open-Access-Publikationsfonds |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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Optics_Express-26-17-21558_2018_Nolte.pdf | 4,14 MB | Adobe PDF | Optics_Express-26-17-21558_2018_Nolte.pdf Öffnen/Anzeigen |
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