Spontaneous Emission and Resonant Scattering in Transition from Type I to Type II Photonic Weyl Systems

Physical Review Letters
Yang YangShuang Zhang

Abstract

Spontaneous emission and scattering behavior of an emitter or a resonant scatterer strongly depend on the density of states of the surrounding medium. It has been shown that the resonant scattering cross section (RSC) may diverge at the Weyl frequency of a type I Weyl system due to the diminishing density of states. Here we study the spontaneous emission (SE) and RSC in a photonic metacrystal across the critical transition between type I and type II Weyl systems. Theoretical results show that the SE rate of an emitter in a type I Weyl system diminishes to zero at the Weyl frequency. When the system is tuned towards the transition point between type I and type II Weyl point, the dip in the SE spectrum at the Weyl frequency becomes infinitely sharp. The dip vanishes at the critical transition, and transforms into a peak when the system changes into a type II Weyl system. We further show that the resonant scattering cross section also exhibits dramatically different spectral features across the transition. Our study demonstrates the ability to tune SE and RSC through altering the dispersion of the Weyl medium between type I and type II, which provides a fundamentally new route in manipulating light-matter interactions.

References

Sep 16, 2000·Physical Review Letters·Z Y LiZ Q Zhang
Oct 4, 2000·Physical Review Letters·S Y ZhuM S Zubairy
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·K BuschB C Sanders
Aug 25, 2004·Physical Review Letters·Xue-Hua WangBen-Yuan Gu
Dec 17, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Dmitry N Chigrin
Apr 14, 2012·Science·Harish N S KrishnamoorthyVinod M Menon
Dec 18, 2012·Nature Materials·Alexander B KhanikaevGennady Shvets
Sep 6, 2014·Physical Review Letters·S MittalM Hafezi
Feb 7, 2015·Physical Review Letters·Wenlong GaoShuang Zhang
Jul 18, 2015·Science·Ling LuMarin Soljačić
Nov 27, 2015·Nature·Alexey A SoluyanovB Andrei Bernevig
Aug 16, 2016·Physical Review Letters·Meng XiaoShanhui Fan
Apr 4, 2017·Physical Review Letters·Ephraim ShahmoonSusanne F Yelin
Nov 11, 2017·Nature Communications·Ming ZhouZongfu Yu

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