Photonic crystal enabled THz sources, and one-way waveguides

Z. Wang, Y. Chong, A. Rodriguez, J. B. Abad, S. G. Johnson, J. D. Joannopoulos, M. Soljačic

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We present two photonic crystal enabled platforms, exhibiting novel active optical phenomena. First, using a detailed theoretical and numerical analysis, we show how a Purcell-effect inspired nonlinear nanophotonic scheme could enable optimal and compact THz sources via optical difference frequency generation. Second, we show how electromagnetic one-way edge modes analogous to quantum Hall edge states, originally predicted by Raghu and Haldane in gyroelectric photonic crystals, can appear in more general settings. In gyromagnetic YIG photonic crystals operating at microwave frequencies, time-reversal breaking is strong enough that the effect is readily observable. We present our experimental results on this novel phenomenon.

Original languageEnglish (US)
Title of host publicationActive Photonic Materials III
StatePublished - 2010
Externally publishedYes
EventActive Photonic Materials III - San Diego, CA, United States
Duration: Aug 2 2010Aug 5 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherActive Photonic Materials III
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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