Vibrational Hyper-Raman Molecular Spectroscopy with Entangled Photons
Vibrational Hyper-Raman Molecular Spectroscopy with Entangled Photons
复制标题
纠缠光子振动超拉曼分子光谱
DOI:
10.1021/acsphotonics.1c00777
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发表时间:
2021
期刊:
影响因子:
7
通讯作者:
Mukamel, Shaul
中科院分区:
文献类型:
--
作者:
Chen, Feng;Mukamel, Shaul
Time-energy entangled photons produced by spontaneous parametric down-conversion (SPDC) are employed to calculate vibrational hyper-Raman (HR) signals of the conjugated organic chromophore Wu112. Compared with classical light, time-energy entanglement can provide selectivity of Liouville-space pathways and thus suppress the strong broad electronic-Raman background arising from one-photon resonances of the intermediate states. The entangled-photon HR signal scales linearly with the SPDC pump field intensity rather than quadratically for classical light, which allows weak-field measurements on fragile samples.
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