Analysis of the Purcell effect in photonic and plasmonic crystals with losses.
We study the spontaneous emission rate of emitter in a periodically patterned metal or dielectric membrane in the picture of a multimode field of damped Bloch states. For Bloch states in dielectric structures, the approach fully describes the Purcell effect in photonic crystal or spatially coupled cavities with losses. For a metal membrane, the Purcell factor depends on resistive loss at the resonant frequency of surface plasmon polariton (SPP). Analysis of an InP-Au-InP structure indicates that the SPP's Purcell effect can exceed a value of 50 in the ultraviolet. For a plasmonic crystal, we find a position-dependent Purcell enhancement with a mean value similar to the unpatterned membrane.
Iwase
Hideo
H
Ginzton Laboratory, Stanford University, California, 94305, USA. iwase.hideo@canon.co.jp
Englund
Dirk
D
Vucković
Jelena
J
D003198:Computer Simulation; D017076:Computer-Aided Design; D036103:Nanotechnology / Q000295:instrumentation*; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000379:methods*; D014159:Transducers