• Corpus ID: 119021076

Magnetic spin-orbit interaction directs Bloch surface waves

  title={Magnetic spin-orbit interaction directs Bloch surface waves},
  author={Mengjia Wang and Hongyi Zhang and Tatiana Kovalevitch and Roland Salut and Myun-Sik Kim and Miguel Angel Suarez and Maria-Pilar Bernal and Hans Peter Herzig and Huihui Lu and Thierry Grosjean},
  journal={arXiv: Optics},
We study the directional excitation of optical surface waves controlled by the magnetic field of light. We theoretically predict that a spinning magnetic dipole develops a tunable unidirectional coupling of light to TE-polarized Bloch surface waves (BSWs). Experimentally, we show that the helicity of light projected onto a subwavelength groove milled in the top layer of a 1D photonic crystal (PC) controls the power distribution between two TE-polarized BSWs excited on both sides of the groove… 

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