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Measurement of Spontaneous Emission from a Two-Dimensional Photonic Band Gap Defined Microcavity at Near-Infrared Wavelengths

Research Area: Nanophotonics Year: 1999
Type of Publication: Article Keywords: photonic band gap, spontaneous emission
Authors: Lee, R. K.; Painter, Oskar; D'Urso, B.; Scherer, Axel; Yariv, A.
Journal: Applied Physics Letters Volume: 74
Number: 11 Pages: 1522-1524
Month: March
R. K. Lee, O. J. Painter, B. D'Urso, A. Scherer, and A. Yariv Applied Physics and Electrical Engineering, California Institute of Technology, 1200 E. California Boulevard, Pasadena, California 91125 An active, photonic band gap-based microcavity emitter in the near infrared is demonstrated. We present direct measurement of the spontaneous emission power and spectrum from a microcavity formed using a two-dimensional photonic band gap structure in a half wavelength thick slab waveguide. The appearance of cavity resonance peaks in the spectrum correspond to the photonic band gap energy. For detuned band gaps, no resonances are observed. For devices with correctly tuned band gaps, a two-time enhancement of the extraction efficiency was demonstrated compared to detuned band gaps and unpatterned material.
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