2000 character limit reached
Experimental observation of robust surface states on photonic crystals possessing single and double Weyl points (1512.04681v1)
Published 15 Dec 2015 in physics.optics and cond-mat.mes-hall
Abstract: We designed and fabricated a time-reversal invariant Weyl photonic crystal that possesses single Weyl nodes with topological charge of 1 and double Weyl nodes with a higher topological charge of 2. Using numerical simulations and microwave experiment, nontrivial band gaps with nonzero Chern numbers for a fixed kz was demonstrated. The robustness of the surface state between the Weyl photonic crystal and PEC against kz-conserving scattering was experimentally observed.