Počet záznamů: 1
Spatial and spectral coherence in propagating high-intensity twin beams
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SYSNO ASEP 0451759 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Spatial and spectral coherence in propagating high-intensity twin beams Tvůrce(i) Haderka, O. (CZ)
Machulka, R. (CZ)
Peřina, Jan (FZU-D) RID, SAI, ORCID
Allevi, A. (IT)
Bondani, M. (IT)Zdroj.dok. Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 5, Sep (2015), s. 14365Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova spatial and spectral coherence ; high-intensity twin beams Vědní obor RIV BH - Optika, masery a lasery CEP GAP205/12/0382 GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000361770800001 EID SCOPUS 84942794167 DOI 10.1038/srep14365 Anotace Spatial and spectral coherence of high-intensity twin-beam states propagating from the near-field to the far-field configurations is experimentally investigated by measuring intensity auto-and cross-correlation functions. The experimental setup includes a moving crystal and an iCCD camera placed at the output plane of an imaging spectrometer. Evolution from the tight near-field spatial position cross-correlations to the far-field momentum cross-correlations, accompanied by changeless spectral cross-correlations, is observed. Intensity autocorrelation functions and beam profiles are also monitored as they provide the number of degrees of freedom constituting the down-converted beams. The strength of intensity cross-correlations as an alternative quantity for the determination of the number of degrees of freedom is also measured. The relation between the beam coherence and the number of degrees of freedom is discussed. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2017
Počet záznamů: 1