Research Papers

Photonic crystal dumbbell resonators in silicon and aluminum nitride integrated optical circuits

[+] Author Affiliations
Wolfram H. P. Pernice

Yale University, Department of Electrical Engineering, New Haven, Connecticut 06511

Eggenstein-Leopoldshafen Institute of Technology (KIT), Institute of Nanotechnology, 76344 Karlsruhe, Germany

Chi Xiong

Yale University, Department of Electrical Engineering, New Haven, Connecticut 06511

Hong X. Tang

Yale University, Department of Electrical Engineering, New Haven, Connecticut 06511

J. Nanophoton. 7(1), 073095 (Apr 16, 2013). doi:10.1117/1.JNP.7.073095
History: Received January 17, 2013; Revised March 18, 2013; Accepted March 25, 2013
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Abstract.  Tight confinement of light in photonic cavities helps realize high optical intensity with strong field gradients. We designed a nanoscale resonator device based on a one-dimensional photonic crystal slot cavity. Our design allows for highly localized optical modes with theoretically predicted quality factors (Q factors) in excess of 106. The design was implemented experimentally both in a high-contrast refractive index system (silicon), as well as in medium refractive-index-contrast devices made from aluminum nitride. We achieved an extinction ratio of 21 dB in critically coupled resonators using an on-chip readout platform with loaded Q as high as 33,000. Our approach holds promise for ultrasmall optomechanical resonators for high-frequency operation and sensing applications.

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© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Wolfram H. P. Pernice ; Chi Xiong and Hong X. Tang
"Photonic crystal dumbbell resonators in silicon and aluminum nitride integrated optical circuits", J. Nanophoton. 7(1), 073095 (Apr 16, 2013). ; http://dx.doi.org/10.1117/1.JNP.7.073095


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