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Proceedings Paper

Free-space-coupled microdisk resonators (Conference Presentation)

Paper Abstract

We present a new class of grating-integrated microdisk resonators that directly and efficiently couple to free space and can be excited by top illumination. We discuss the theory and design of such devices and present characterization results of 1530-nm-resonators with 0.8 µm to 1.2 µm radii, which are fabricated using amorphous silicon on glass. A 1.2-µm-radius resonator has a measured Q of ~16,000 and is efficiently excited by top illumination as evidenced by an observed thermally-induced bistability threshold of 0.7 mW. The small footprint and ease of coupling enable dense resonator arrays for applications in free space and flat optics.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11289, Photonic and Phononic Properties of Engineered Nanostructures X, 112890L (10 March 2020); doi: 10.1117/12.2544862
Show Author Affiliations
Babak Mirzapourbeinekalaye, Univ. of Massachusetts Amherst (United States)
Sarath Samudrala, Univ. of Massachusetts Amherst (United States)
Mahdad Mansouree, Univ. of Massachusetts Amherst (United States)
Amir Arbabi, Univ. of Massachusetts Amherst (United States)


Published in SPIE Proceedings Vol. 11289:
Photonic and Phononic Properties of Engineered Nanostructures X
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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