Near-field thermal upconversion and energy transfer through a Kerr medium : Theory

Abstract

We present an approach for achieving large Kerr ${\chi }^{(3)}$--mediated thermal energy transfer at the nanoscale that exploits a general coupled-mode description of triply resonant, four-wave mixing processes. We analyze the efficiency of thermal upconversion and energy transfer from mid- to near-infrared wavelengths in planar geometries involving two slabs supporting far-apart surface plasmon polaritons and separated by a nonlinear ${\chi }^{(3)}$ medium that is irradiated by externally incident light. We study multiple geometric and material configurations and different classes of interveening mediums---either bulk or nanostructured lattices of nanoparticles embedded in nonlinear materials---designed to resonantly enhance the interaction of the incident light with thermal slab resonances. We find that even when the entire system is in thermodynamic equilibrium (at room temperature) and under typical drive intensities $\sim \mathrm{W}/\mu {\mathrm{m}}^2$, the resulting upconversion rates can approach and even exceed thermal flux rates achieved in typical symmetric and non-equilibrium configurations of vacuum-separated slabs. The proposed nonlinear scheme could potentially be exploited to achieve thermal cooling and refrigeration at the nanoscale, and to actively control heat transfer between materials with dramatically different resonant responses.

References in corpus (15)

• Graphene plasmonics: A platform for strong light-matter interaction
• Transmission resonances on metallic gratings with very narrow slits
• Surface Electromagnetic Waves Thermally Excited: Radiative Heat Transfer, Coherence Properties and Casimir Forces Revisited in the Near Field
• MNPBEM - A Matlab toolbox for the simulation of plasmonic nanoparticles
• Near-field thermal transistor
• Deterministic design of wavelength scale, ultra-high Q photonic crystal nanobeam cavities
• Graphene-based photovoltaic cells for near-field thermal energy conversion
• Chi2 and chi3 harmonic generation at a critical power in inhomogeneous doubly resonant cavities
• Radiative heat transfer in nonlinear Kerr media
• Degenerate four-wave mixing in triply-resonant Kerr cavities
• Thermal radiation from optically driven Kerr (${\chi }^{(3)}$) photonic cavities
• Finite temperature Casimir effect in the presence of nonlinear dielectrics
• High-efficiency degenerate four wave-mixing in triply resonant nanobeam cavities
• Giant frequency-selective near-field energy transfer in active--passive structures
• Fluctuational electrodynamics for nonlinear media

Cited by in corpus (5)

• Thermal spin photonics in the near-field of nonreciprocal media
• Near-field refrigeration and tunable heat exchange through four-wave mixing
• Fluctuational electrodynamics for nonlinear materials in and out of thermal equilibrium
• Quantum nonlinear mixing of thermal photons to surpass the blackbody limit
• Non-Hermitian engineering for brighter broadband pseudothermal light