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
in a molecular-cavity system consisting 107 molecules. The mechanism takes
advantage of the strong coupling enhancement with molecular collective mode and
Stokes sideband pump. Our work demonstrates a feasible approach for
up-converting infrared signals to the visible range.Comment: 5 pages, 4 figures for the main text; 6 pages, 2 figures for
Supplementary Materia