AUTHOR=Khodadad Kashi Anahita , Sader Lynn , Haldar Raktim , Wetzel Benjamin , Kues Michael 

TITLE=Frequency-to-Time Mapping Technique for Direct Spectral Characterization of Biphoton States From Pulsed Spontaneous Parametric Processes

JOURNAL=Frontiers in Photonics

VOLUME=3

YEAR=2022

URL=https://www.frontiersin.org/journals/photonics/articles/10.3389/fphot.2022.834065

DOI=10.3389/fphot.2022.834065

ISSN=2673-6853

ABSTRACT=<p>The well-established frequency-to-time mapping technique is employed as a convenient and time-efficient method to directly characterize the spectral correlations of biphoton states from a pulsed-excited spontaneous parametric down-conversion process. We were enabled by this technique to implement for the first time, the spectral Hanbury-Brown and Twiss measurement, revealing directly the single frequency-mode bandwidth of the biphoton state.</p>