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arXiv 1306.2044quant-phphysics.optics
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三波参量与光场相互作用的多模声子冷却

Multimode Phonon Cooling via Three Wave Parametric Interactions with Optical Fields

G. S. Agarwal, Sudhanshu S. Jha

摘要:

我们讨论了不同声子模通过振动模和光学模的三波混频相互作用可能的冷却。由于声子模式表现出各种色散关系或频谱与不同的空间结构,这取决于形状和大小的样品,我们制定我们的理论在任何给定的几何形状的相互作用领域的相关空间模式函数。我们讨论了Dicke类集体效应在声子冷却中的可能性,并给出了通过反斯托克斯上转换同时冷却两个声子模的明确结果。我们表明,双峰冷却应该是可观察的实验。

英文摘要:

We discuss the possible cooling of different phonon modes via three wave mixing interactions of vibrational and optical modes. Since phonon modes exhibit a variety of dispersion relations or frequency spectra with diverse spatial structures, depending on the shape and size of the sample, we formulate our theory in terms of relevant spatial mode functions for the interacting fields in any given geometry. We discuss the possibility of Dicke like collective effects in phonon cooling and present explicit results for simultaneous cooling of two phonon modes via the anti-Stokes up conversions. We show that the bimodal cooling should be observable experimentally.

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