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Frontiers research topics

Quantum Light for Imaging, Sensing and Spectroscopy

Roberto de J. León‐Montiel, Mario Alan Quiroz-Juarez, Omar S. Magaña‐Loaiza, Juan P. Torres

Published Jan 1, 2022• 0 citations
Publisher
DOI
10.3389/978-2-8325-0394-2

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Brillouin spectroscopy and microscopy is widely used for remote sensing and imaging; however, the sensitivity of detection is often limited due to the available laser power for such measurements. Quantum light offers an alternative solution to such spectroscopy and imaging by reducing the noise below the classical shot-noise limit. We demonstrate the first results of Brillouin spectroscopy and imaging using quantum-enhanced detection and outline potential applications and future strategies for improved detection sensitivity.
Abstract Conventional spectroscopy uses classical light to detect matter properties through the variation of its response with frequencies or time delays. Quantum light opens up new avenues for spectroscopy by utilizing parameters of the quantum state of light as novel control knobs and through the variation of photon statistics by coupling to matter. This Roadmap article focuses on using quantum light as a powerful sensing and spectroscopic tool to reveal novel information about complex molecules that is not accessible by classical light. It aims at bridging the quantum optics and spectroscopy communities which normally have opposite goals: manipulating complex light states with simple matter e.g. qubits versus studying complex molecules with simple classical light, respectively. Articles cover advances in the generation and manipulation of state-of-the-art quantum light sources along with applications to sensing, spectroscopy, imaging and interferometry.