Ultrafast all-optical switching of 3D photonic band gap crystals

T.G. Euser, H. Wei, J. Kalkman, Y. Jun, M. Guina, S. Suomalainen, A. Polman, D.J. Norris, W.L. Vos

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

1 Citation (Scopus)


We present ultrafast optical switching experiments on 3D photonic band gap crystals. Switching the Si inverse opal is achieved by optically exciting free carriers by a two-photon process. We probe reflectivity in the frequency range of second order Bragg diffraction where the photonic band gap is predicted. We observe a large frequency shift of up to 1.5% of all spectral features including the peak that corresponds to the photonic band gap. We also demonstrate large, ultrafast shifts of stop bands of planar GaAs/AlAs photonic structures. We briefly discuss how our results can be used in future switching and modulation applications.
Original languageEnglish
Title of host publicationActive Photonic Crystals
EditorsSharon M. Weiss, Ganapathi S. Subramania, Florencio Garcia-Santamaria
Place of PublicationBellingham, WA
Number of pages4
ISBN (Print)9780819467881
Publication statusPublished - 26 Aug 2007
EventSPIE Optics & Photonics 2007 - San Diego Convention Center, San Diego, United States
Duration: 26 Aug 200731 Aug 2007

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


ConferenceSPIE Optics & Photonics 2007
CountryUnited States
CitySan Diego


  • Crystals
  • All-optical switching
  • Ultrafast
  • Band gap
  • silicon
  • GaAs

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