Interferometric quantum spectroscopy with undetected photons via distinguishability modulation

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Title
Interferometric quantum spectroscopy with undetected photons via distinguishability modulation
Author(s)
SUN KYUNG LEE; TAI HYUN YOON; MINHAENG CHO
Publication Date
2019-05
Journal
OPTICS EXPRESS, v.27, no.10, pp.14853 - 14870
Publisher
OPTICAL SOC AMER
Abstract
Quantum spectroscopy with undetected photons (QSUP) utilizing the quantum entanglement of parametrically down-converted photons has emerged as a new spectroscopic platform. Here, we demonstrate a high-resolution and remote-measurement QSUP, where light-matter interactions and photon detections are performed in spectrally and spatially different regions. A dual-stimulated parametric down-conversion scheme with an optical frequency-comb pump and ultra-narrow coherent seed beam in an idler mode is used to generate path-entangled pairs of the undetected idler and measured frequency-comb signal photons. To demonstrate the frequency resolution of this scheme, a Fabry-Perot cavity with a narrow bandwidth is used as a sample that modulates the distinguishability of one-photon added coherent idler beams, which directly affects the interference fringe visibility of the entangled signal photons. We thus anticipate that the remote QSUP whose frequency resolution is determined by the linewidth of the coherent seed laser will enable the development of quantum spectroscopy featuring high resolution. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreemen
URI
https://pr.ibs.re.kr/handle/8788114/6176
ISSN
1094-4087
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > Journal Papers (저널논문)
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