Effects of pump depletion on spatial and spectral properties of parametric down-conversion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33154391" target="_blank" >RIV/61989592:15310/15:33154391 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/15:00449792

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2178469" target="_blank" >http://dx.doi.org/10.1117/12.2178469</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2178469" target="_blank" >10.1117/12.2178469</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of pump depletion on spatial and spectral properties of parametric down-conversion

Popis výsledku v původním jazyce

It is well known that optical twin-beam states (TWB) generated by spontaneous parametric down-conversion (PDC) exhibit spatial and spectral correlations, which can appear in single-shot images obtained by using an imaging spectrometer to resolve emissionangles and wavelengths simultaneously. By analyzing series of singleshot images recorded by an EMCCD camera at different powers of the pump beam, we studied the evolution of several quantities characterizing the generated TWB. In particular, we demonstrated that correlation widths in spectrum and space increase monotonically at low pump powers and then start decreasing at higher powers due to the onset of pump depletion. In a complementary way, the Fedorov ratio decreases and then increases again. At the same time, the number of modes evaluated from photon statistics follows a complementary behavior to correlation widths that can be interpreted in terms of the evolution of the number of Schmidt modes in the field.

Název v anglickém jazyce

Effects of pump depletion on spatial and spectral properties of parametric down-conversion

Popis výsledku anglicky

It is well known that optical twin-beam states (TWB) generated by spontaneous parametric down-conversion (PDC) exhibit spatial and spectral correlations, which can appear in single-shot images obtained by using an imaging spectrometer to resolve emissionangles and wavelengths simultaneously. By analyzing series of singleshot images recorded by an EMCCD camera at different powers of the pump beam, we studied the evolution of several quantities characterizing the generated TWB. In particular, we demonstrated that correlation widths in spectrum and space increase monotonically at low pump powers and then start decreasing at higher powers due to the onset of pump depletion. In a complementary way, the Fedorov ratio decreases and then increases again. At the same time, the number of modes evaluated from photon statistics follows a complementary behavior to correlation widths that can be interpreted in terms of the evolution of the number of Schmidt modes in the field.

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Quantum Optics and Quantum Information Transfer and Processing 2015

ISBN

978-1-62841-626-8

ISSN

0277-786X

e-ISSN

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Počet stran výsledku

7

Strana od-do

"950508-1"-"950508-7"

Název nakladatele

SPIE

Místo vydání

Bellingham (OR)

Místo konání akce

Praha

Datum konání akce

15. 4. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000356607200003