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Broad-band mirror (1.12-1.62 μm) using a subwavelength grating

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5 Author(s)
C. F. R. Mateus ; Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA, USA ; M. C. Y. Huang ; Lu Chen ; C. J. Chang-Hasnain
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We report the first experimental demonstration of a novel single-layer subwavelength grating (SWG) that has >500-nm-wide reflection spectrum from 1.12-1.62 μm and very high reflectivity (>98.5%). This SWG is scalable for different wavelengths by simply changing the grating dimensions, which, thus, facilitates monolithic integration of devices over a wide range of wavelengths.

Published in:

IEEE Photonics Technology Letters  (Volume:16 ,  Issue: 7 )