Square-lattice photonic band-gap single-cell laser operating in the lowest-order whispering gallery mode

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Square-lattice photonic band-gap lasers are realized at room temperature from single-cell photonic crystal slab microcavities fabricated in InGaAsP quantum-well materials emitting at 1.5 mum. This single-cell photonic band-gap laser operates in a class of two-dimensional mode to be classified as the smallest possible whispering gallery mode with genuine energy null at the center. The low-loss nondegenerate mode with modal volume of 0.1 (lambda/2)3 demonstrates a spectrometer-limited below-threshold quality factor >2000 and a theoretical quality factor >10 000. The other class of photonic crystal lasers is also observed outside the photonic band gap of the square lattice, operating in the dipole mode. (C) 2002 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2002-05
Language
English
Article Type
Article
Keywords

SPONTANEOUS EMISSION; MICRODISK LASERS; CRYSTALS; CAVITIES

Citation

APPLIED PHYSICS LETTERS, v.80, no.21, pp.3883 - 3885

ISSN
0003-6951
URI
http://hdl.handle.net/10203/21789
Appears in Collection
PH-Journal Papers(저널논문)
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