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Light wheel confine...
Light wheel confined in a purely dielectric composite waveguide
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Ye, Y. Q. (författare)
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Jin, Y. (författare)
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- He, Sailing (författare)
- KTH,Elektroteknisk teori och konstruktion
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Optics Express. - 1094-4087. ; 17:6, s. 4348-4354
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A properly designed composite waveguide consisting of a one-dimensional photonic crystal waveguide and a conventional dielectric waveguide is proposed for the realization of a localized "light wheel". Light confinedly rotating between the two waveguides is numerically demonstrated and explained physically in detail. A delocalized "light wheel" is found at the band gap edge caused by contra-directional coupling between the two waveguides. Because of this delocalized "light wheel", the composite waveguide can be used to trap light as a cavity, and a quality factor of 9 x 10(3) is achieved as an example. The present structure is completely dielectric and thus easy to realize with a low loss.
Nyckelord
- 2-dimensional photonic crystal
- square-lattice
- couplers
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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