Optomechanical resonators exist in several geometries, based on microdisks, photonic crystal nanobeams, membranes etc., each with its own advantages and disadvantages. In this study, S. K. Manjeshwar et al. propose a hybrid geometry where a photonic crystal resonance (also known as guided mode resonance) hybridizes with a distributed Bragg reflector (DBR) through a Fabry-Pérot-like mechanism. As a result, the observable optomechanically-induced resonance frequency shift has a peculiar lineshape, not usually seen in other systems. Moreover, the proposed device could in the future embed in the DBR layers an active medium, enabling laser optomechanics in a compact platform. The article is a pleasant yet technically complete read, featuring advanced theoretical analysis and detailed experimental data.
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