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

Abstract

We study thermal radiation from nonlinear (${\chi }^{(3)}$) 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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• Four-wave-cooling to the single phonon level in Kerr optomechanics
• Near-field refrigeration and tunable heat exchange through four-wave mixing
• Near-field thermal upconversion and energy transfer through a Kerr medium : Theory
• Giant frequency-selective near-field energy transfer in active--passive structures
• Parametrically enhanced interactions and non-trivial bath dynamics in a photon-pressure Kerr amplifier
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• Quantum nonlinear mixing of thermal photons to surpass the blackbody limit
• Near-field dynamical Casimir effect