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arXiv 1503.03756cond-mat.mes-hallphysics.optics
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光驱动Kerr($χ^{(3)}$)光子腔的热辐射

Thermal radiation from optically driven Kerr ($χ^{(3)}$) photonic cavities

Chinmay Khandekar, Zin Lin, Alejandro W. Rodriguez

摘要:

本文研究了非线性($χ^{(3)}$)光子谐振腔在单色光入射下的热辐射。我们的工作扩展了非线性机械振荡器的相关工作[Phys. Rev. Lett. 97,110602(2006)]的热辐射问题,证明了双稳态可以增强热辐射的数量级,并导致强烈的线形交替,包括“超窄光谱峰”发生在动力学相变的开始。我们表明,当腔的设计,以便有完美的线性吸收率(率匹配),这样的热激活转换可以利用显着调整腔的输出功率和辐射特性,导致一种克尔介导的热光效应。最后,我们表明,在某些参数制度,输出辐射呈现斯托克斯和反斯托克斯侧峰,其相对幅度可以通过调整腔体的内部温度相对于其周围环境,强相关性和发射和反射的辐射之间的干扰的后果改变。

英文摘要:

We study thermal radiation from nonlinear ($χ^{(3)}$) photonic cavities coupled to external channels and subject to incident monochromatic light. Our work extends related work on nonlinear mechanical oscillators [Phys. Rev. Lett. 97, 110602 (2006)] to the problem of thermal radiation, demonstrating that bistability can enhance thermal radiation by orders of magnitude and result in strong lineshape alternations, including "super-narrow spectral peaks" occurring at the onset of kinetic phase transitions. We show that when the cavities are designed so as to have perfect linear absorptivity (rate matching), such thermally activated transitions can be exploited to dramatically tune the output power and radiative properties of the cavity, leading to a kind of Kerr-mediated thermo-optic effect. Finally, we demonstrate that in certain parameter regimes, the output radiation exhibits Stokes and anti-Stokes side peaks whose relative magnitudes can be altered by tuning the internal temperature of the cavity relative to its surroundings, a consequence of strong correlations and interference between the emitted and reflected radiation.

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