Few-Photon Heteorodyne Spectroscopy
Gustavo C Amaral, Thiago Ferreira da Silva, Guilherme P Tempor\~ao,, Jean Pierre von der Weid
TL;DR
This paper introduces a high-resolution Fourier Transform Spectroscopy method for faint optical sources using two-photon interference, enabling spectral analysis below classical heterodyne techniques.
Contribution
It presents a novel heterodyne spectroscopy technique based on two-photon interference for analyzing very weak optical sources.
Findings
Effective spectral characterization of faint sources
High resolution in the few-photon regime
Applicable below classical heterodyne limits
Abstract
We perform a high resolution Fourier Transform Spectroscopy of optical sources in the few-photon regime based on the phenomenon of two-photon interference in a beam splitter. From the heterodyne interferogram between test and reference sources it is possible to obtain the spectrum of the test source relative to that of the reference. The method proves to be a useful asset for spectral characterization of faint optical sources below the range covered by classical heterodyne beating techniques.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.