Sebastian Volz
Laboratory for Integrated Micro Mechatronic Systems, CNRS-IIS,
The University of Tokyo, Tokyo 153-8505, Japan

“Surface Phonon-Polaritons as Efficient Heat Carriers”

Recent studies showed that surface phonon-polaritons, i.e. evanescent electromagnetic waves propagating along the surface of polar dielectric materials [1] [2], may potentially serve as novel heat carriers to enhance the thermal performance in micro- and nanoscale devices. This seminar will expose the significant contribution of these carriers to thermal conductivity in ultra-thin (<100nm) films [3], but also to radiation, yielding SuperPlanckian emission and absorption between surfaces of larger scales (10mm).

Acknowledgements: This work is supported by CREST JST, Grant JPMJCR19Q3 and JPMJCR19I1.

[1] D.-Z Chen, A. Narayanaswamy, and G. Chen, Phys. Rev. B 72, 155435 (2005).
[2]J. Ordonez-Miranda, L. Tranchant, T. Tokunaga, B. Kim, B Palpant, Y. Chalopin, T. Antoni, and S. Volz, J. Appl. Phys. 113, 084311 (2013).
[3] Y. Wu, J. Ordonez-Miranda, S. Gluchko, R. Anufriev, D. De Sousa Meneses, L. Del Campo, S. Volz, and M. Nomura, Science Advances 6(40):eabb4461, (2020).