Author
Kuniyil, Hashir Puthiyapurayil, Özel, Helin, Yılmaz, H., Durak, Kadir
Publication Date
2022-10
Publication Place
-
IOP Publishing
Subject
Quantum correlation, Quantum lidar, Single photon detectors, Spontaneous parametric down conversion
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
2040-8978
Record ID
b54188a8-9aa2-4627-82b2-099482795641
Library Location
Electrical & Electronics Engineering
Date
2022-10
Notes
TÜBİTAK
Sample Text
Imaging, detection and ranging of objects in the presence of significant background noise is a fundamental challenge in optical sensing. Overcoming the limitations imposed in conventional methods, quantum light sources show higher resistance against noise in a time-correlation-based quantum illumination. Here, we introduce the advantage of using not only time correlations but also polarization correlations in photon pairs in the detection of an object that is embedded in a noisy background. In this direction, a time- and polarization-correlated photon pair source using the spontaneous parametric down-conversion process is exploited. We found that the joint measurement of correlated pairs allows distinguishing the signal from the noise photons and that leads to an improved signal-to-noise ratio. Our comparative study revealed that using polarization correlations in addition to time correlations provides improved noise rejection. Furthermore, we show that polarization correlation allows undoing the detector limitation where high background often leads to detector saturation.
DOI
10.1088/2040-8986/ac899c
Cilt
24
