期刊
OPTICS LETTERS
卷 40, 期 10, 页码 2393-2396出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.40.002393
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资金
- CAPES
- ETH
- Swiss National Science Foundation (SNF) [200021-146358]
- Swiss National Science Foundation (SNF) [200021_146358] Funding Source: Swiss National Science Foundation (SNF)
We investigate the arrival statistics of Stokes (S) and anti-Stokes (aS) Raman photons generated in thin diamond crystals. Strong quantum correlations between the S and aS signals are observed, which implies that the two processes share the same phonon; that is, the phonon excited in the S process is consumed in the aS process. We show that the intensity cross-correlation g(S,aS)((2))(0), which describes the simultaneous detection of Stokes and anti-Stokes photons, increases steadily with decreasing laser power and saturates at very low pump powers, implying that the number of Stokes-induced aS photons is comparable to the number of spontaneously generated aS photons. Furthermore, the coincidence rate shows a quadratic plus cubic power dependence, indicating the generation of multiple S photons per pulse at high powers. (C) 2015 Optical Society of America
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