Current browse context:
quant-ph
Change to browse by:
References & Citations
Quantum Physics
Title: Quantum-enhanced absorption spectroscopy with bright squeezed frequency combs
(Submitted on 30 Sep 2022 (v1), last revised 28 Mar 2023 (this version, v2))
Abstract: Absorption spectroscopy is a widely used technique that permits the detection and characterization of gas species at low concentrations. We propose a sensing strategy combining the advantages of frequency modulation spectroscopy with the reduced noise properties accessible by squeezing the probe state. A homodyne detection scheme allows the simultaneous measurement of the absorption at multiple frequencies and is robust against dispersion across the absorption profile. We predict a significant enhancement of the signal-to-noise ratio that scales exponentially with the squeezing factor. An order of magnitude improvement beyond the standard quantum limit is possible with state-of-the-art squeezing levels facilitating high precision gas sensing.
Submission history
From: Alexandre Belsley [view email][v1] Fri, 30 Sep 2022 17:57:05 GMT (719kb,D)
[v2] Tue, 28 Mar 2023 21:09:27 GMT (270kb,D)
Link back to: arXiv, form interface, contact.