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

Han Youl Ryu; Se Heon Kim; Hong Gyu Park; Jeong Ki Hwang; Yong Hee Lee; Jeong Soo Kim

doi:10.1063/1.1480103

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

Han Youl Ryu, Se Heon Kim, Hong Gyu Park, Jeong Ki Hwang, Yong Hee Lee, Jeong Soo Kim

Research output: Contribution to journal › Article

149 Citations (Scopus)

Abstract

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 μm. 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 (λ/2)³ demonstrates a spectrometer-limited below-threshold quality factor >2000 and a theoretical quality factor >10000. The other class of photonic crystal lasers is also observed outside the photonic band gap of the square lattice, operating in the dipole mode.

Original language	English
Pages (from-to)	3883-3885
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	21
DOIs	https://doi.org/10.1063/1.1480103
Publication status	Published - 2002 May 27
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Ryu, H. Y., Kim, S. H., Park, H. G., Hwang, J. K., Lee, Y. H., & Kim, J. S. (2002). Square-lattice photonic band-gap single-cell laser operating in the lowest-order whispering gallery mode. Applied Physics Letters, 80(21), 3883-3885. https://doi.org/10.1063/1.1480103

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abstract = "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 μm. 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 (λ/2)3 demonstrates a spectrometer-limited below-threshold quality factor >2000 and a theoretical quality factor >10000. The other class of photonic crystal lasers is also observed outside the photonic band gap of the square lattice, operating in the dipole mode.",

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