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Different regimes o...
Different regimes of the Purcell effect in disordered photonic crystals
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- Morozov, K. M. (författare)
- St Petersburg Acad Univ, Russia; ITMO Univ, Russia
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- Girshova, E. I (författare)
- St Petersburg Acad Univ, Russia
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- Gubaidullin, A. R. (författare)
- St Petersburg Acad Univ, Russia; ITMO Univ, Russia
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- Ivanov, K. A. (författare)
- ITMO Univ, Russia
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- Pozina, Galia (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Kaliteevski, M. A. (författare)
- St Petersburg Acad Univ, Russia; ITMO Univ, Russia; Ioffe Inst, Russia
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(creator_code:org_t)
- IOP PUBLISHING LTD, 2018
- 2018
- Engelska.
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Ingår i: Journal of Physics. - : IOP PUBLISHING LTD. - 0953-8984 .- 1361-648X. ; 30:43
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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. We provide statistical analysis of Purcell coefficient on the frequency of the emitter and its position within the sample. For the moderate disorder, an enhancement of spontaneous emission occurs at the edge of PBG due to the modification of 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 pumping observed in synthetic opals.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- purcell effect; disordered media; light-matter interaction
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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