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SUMMARY:Photonic Crystals - why the holes ? (Prof. Thomas F. Krauss FRSE\,
  University of York) - Prof. Thomas F. Krauss FRSE\, Department of Physics
 \, University of York
DTSTART:20140826T130000Z
DTEND:20140826T140000Z
UID:TALK51533@talks.cam.ac.uk
CONTACT:Dr. Jonathan D. Mar
DESCRIPTION:The promise of photonic crystals was first formulated over 25 
 years ago\, so it is time to assess what unique advantages these structure
 s actually offer. I will look at a number of applications where photonic c
 rystals have made an impact in order to highlight their unique features. T
 he two main properties I will discuss are a) the ability to confine light 
 in-plane\, which includes cavities and slow light\, and b) to control out-
 of plane radiation. The strong in-plane confinement gives rise to enhanced
  nonlinear effects\, the Purcell factor\, and efficient electro-optic modu
 lation\, while the control of out-of plane radiation is interesting for gr
 ating couplers\, light emitting diodes\, solar cells and biosensors.
LOCATION:Small Lecture Theatre\, Bragg Building\, Cavendish Laboratory (Ph
 ysics Department)
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