Different regimes of Purcell Effect in Disordered Photonic Crystals
arXiv:1802.01187 · doi:10.1088/1361-648X/aae18c
Abstract
We demonstrate that disorder in photonic crystals could lead to pronounced modification of spontaneous emission rate in the frequency region corresponding to the photonic band gap (PBG). Depending on the amount of disorder, two different regimes of the Purcell effect occurs. For the moderate disorder, an enhancement of spontaneous emission occurs at the edge of PBG due to modification of the properties of the edge state. This effect is responsible for recently observed mirrorless lasing in photonic crystals at the edge of PBG. When the level of disorder increases, the spontaneous emission rate enhances within the PBG due to the appearance of the high quality factor states. This effect is likely responsible for a superlinear dependence of emissions on the pumping observed in synthetic opals.
arXiv comment15 pages, 6 figures, appendix
References in corpus (11)
- Cavity Quantum Electrodynamics with Anderson-localized Modes
- Statistics of Lyapunov exponent in 1-D random periodic-on-average systems
- Mapping the local density of optical states of a photonic crystal with single quantum dots
- Bragg Polaritons: Strong Coupling and Amplification in an Unfolded Microcavity
- Spontaneous emission of a nanoscopic emitter in a strongly scattering disordered medium
- Lower bound for the spatial extent of localized modes in photonic-crystal waveguides with small random imperfections
- Probing statistical properties of Anderson localization with quantum emitters
- Photonic-Crystal Waveguides with Disorder: Measurement of a Band-Edge Tail in the Density of States
- Physics of quantum light emitters in disordered photonic nanostructures
- Statistics of Anderson-localized modes in disordered photonic crystal slab waveguides
- Collective scattering in hybrid nanostructures with many atomic oscillators coupled to an electromagnetic resonance