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Solid-state single photon sources: light collection strategies
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
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2002 (English)In: European Physical Journal D: Atomic, Molecular and Optical Physics, ISSN 1434-6060, E-ISSN 1434-6079, Vol. 18, no 2, 197-210 p.Article in journal (Refereed) Published
Abstract [en]

We examine the problem of efficiently collecting the photons produced by solid-state single photon sources. The extent of the problem is first established with the aid of simple physical concepts. Several approaches to improving the collection efficiency are then examined and are broadly categorized into two types. First are those based on cavity quantum dynamics, in which the pathways by which the source may emit a photon are restricted, thus channeling emission into one desired mode. Second are those where we try to reshape the free space modes into a target mode in an optimal way, by means of refraction, without fundamentally altering the way in which the source emits. Respectively, we examine a variety of microcavities and solid immersion lenses. Whilst we find that the micropillar microcavities offer the highest collection efficiency (similar to70%), choosing this approach may not always be appropriate due to other constraints. Details of the different approaches, their merits and drawbacks are discussed in detail.

Place, publisher, year, edition, pages
2002. Vol. 18, no 2, 197-210 p.
Keyword [en]
spontaneous emission, metallic microcavities, molecule fluorescence, planar microcavities, grating structures, emitting devices, room-temperature, turnstile device, quantum boxes, band-gaps
URN: urn:nbn:se:kth:diva-21354ISI: 000174180500009OAI: diva2:340052
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Björk, Gunnar
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Microelectronics and Information Technology, IMIT
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