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Numerical studies o...
Numerical studies of mode gaps and coupling efficiency for line-defect waveguides in two-dimensional photonic crystals
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- Qiu, Min (författare)
- KTH,Mikroelektronik och informationsteknik, IMIT
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Azizi, K. (författare)
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- Karlsson, Anders (författare)
- KTH,Mikroelektronik och informationsteknik, IMIT
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- Swillo, Marcin (författare)
- KTH,Mikroelektronik och informationsteknik, IMIT
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- Jaskorzynska, Bozena (författare)
- KTH,Mikroelektronik och informationsteknik, IMIT
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(creator_code:org_t)
- 2001
- 2001
- Engelska.
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Ingår i: Physical Review B Condensed Matter. - 0163-1829 .- 1095-3795. ; 6415:15
- 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
- Using conventional waveguides. for light coupling and collection we numerically study band structures and transmission spectra for guided modes in line-defect waveguides. obtained by removing rows of air holes in a lossless triangular-lattice two-dimensional photonic crystal. The two-dimensional finite-difference time-domain method combined with the effective index method and complemented with the coupled mode approximation is employed to analyze mode-gaps (or mini stopbands) arising from Bragg diffraction of the incident mode into the counterpropagating modes. We also show that more than 97% coupling efficiency between the ridge and the photonic crystal waveguides. is achievable by adjustment of the ridge waveguide width.
Nyckelord
- near-infrared wavelengths
- macroporous silicon
- wave-guides
- band-gap
- metallic inclusions
- transmission
- slabs
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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