Open AccessNoise reduction in third order cross-correlation by angle optimization of the interacting beams
Author(s) -
V. A. Schanz,
F. Wagner,
Markus Roth,
V. Bagnoud
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.009252
Subject(s) - optics , noise reduction , noise (video) , physics , signal (programming language) , dynamic range , reduction (mathematics) , laser , cross correlation , signal to noise ratio (imaging) , acoustics , computer science , mathematics , geometry , artificial intelligence , image (mathematics) , programming language , mathematical analysis
We report on a novel technique to reduce the noise level in scanning third order cross-correlation. Large angles between the interacting beams combined with adapted crystal parameters lead to a significant decrease of noise photon generation while maintaining efficient generation of the third order signal. An enhanced scanning cross-correlator was developed based on the new technique proposed. In tests at the PHELIX laser facility this novel correlator performed within a dynamic range of 12.5 orders of magnitude.