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arXiv · 2308.08782

Amplifying Frequency Up-Converted Infrared Signals with a Molecular Optomechanical Cavity

Fen Zou·Lei Du·Yong Li·Hui Dong
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Abstract

Frequency up-conversion, enabled by molecular optomechanical coupling, has recently emerged as a promising approach for converting infrared signals into the visible range through quantum coherent conversion of signals. However, detecting these converted signals poses a significant challenge due to their inherently weak signal intensity. In this work, we propose an amplification mechanism capable of enhancing the signal intensity by a factor of 1000 or more for the frequency up-converted infrared signal in a molecular optomechanical system. The mechanism takes advantage of the strong coupling enhancement with molecular collective mode and Stokes sideband pump. This work demonstrates a feasible approach for up-converting infrared signals to the visible range.

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Fen Zou, Lei Du, Yong Li, Hui Dong. 2023-08-17. Amplifying Frequency Up-Converted Infrared Signals with a Molecular Optomechanical Cavity. https://doi.org/10.1103/physrevlett.132.153602

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