Special Section: Selected Papers from the First Joint Israeli-Turkish Workshop on Nanophotonics

Annular Bragg resonators - the ultimate device for sensing, nonlinear optics and cavity quantum electrodynamics

[+] Author Affiliations
Jacob Scheuer

Tel Aviv University

J. Nanophoton. 1(1), 011675 (October 15, 2007). doi:10.1117/1.2793739
History: Received June 19, 2007; Revised August 2, 2007; Accepted August 12, 2007; October 15, 2007; Online October 15, 2007
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Abstract

Circular resonators are key elements, essential for research involving highly confined fields and strong photon-atom interactions such as cavity QED, as well as for practical applications in optical communication systems, biochemical sensing and more. The main characteristics of such resonators are the Q-factor, the free spectral range (FSR) and the modal volume, where the last two are primarily determined by the resonator radius. The Total-Internal-Reflection (TIR) mechanism employed in"conventional" resonators couples between these characteristics and limits the ability to realize compact devices exhibiting large FSR, small modal volume and high Q. Recently, a new class of annular resonator, based on a single defect surrounded by radial Bragg reflectors, has been proposed and analyzed. The radial Bragg confinement decouples the modal volume and the Q and paves a new way for the realization of compact and low loss resonators. Such properties as well as the unique mode profile of the annular Bragg resonators (ABRs) make this class of devices an excellent tool for ultra-sensitive biochemical detection as well as for studies in nonlinear optics.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Jacob Scheuer
"Annular Bragg resonators - the ultimate device for sensing, nonlinear optics and cavity quantum electrodynamics", J. Nanophoton. 1(1), 011675 (October 15, 2007). ; http://dx.doi.org/10.1117/1.2793739


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