Strain tuneable whispering gallery mode resonators in the estimation of the elasto-optic parameters of soft materials

Stavros Pissadakis; Karolina Milenko; Alina Aluculesei; George Fytas

doi:10.1117/12.2229395

4 May 2016 Strain tuneable whispering gallery mode resonators in the estimation of the elasto-optic parameters of soft materials

Stavros Pissadakis, Karolina Milenko, Alina Aluculesei, George Fytas

Author Affiliations +

Proceedings Volume 9899, Optical Sensing and Detection IV; 98991E (2016) https://doi.org/10.1117/12.2229395
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

In this manuscript we present the fabrication and characterization of a novel, polymer whispering gallery modes (WGMs) spherical micro-resonator, formed around the waist of an optical fiber taper. Fiber taper with well attached spheroid works as a cord, fixed on two ends enabling strain application to the resonator body. Controllable elastic elongation of the encapsulated fiber taper causes a change in the shape of the spheroid, which modifies the diameter and directional refractive index of the cavity. These changes influence the wavelength position of the WGMs resonances with a linear blue shift up to 0.6 nm, with corresponding strains up to 700Μɛ. The strain induced WGMs shift with respect to resonator diameter and annealing process is presented and analyzed.

Citation Download Citation

Stavros Pissadakis, Karolina Milenko, Alina Aluculesei, and George Fytas "Strain tuneable whispering gallery mode resonators in the estimation of the elasto-optic parameters of soft materials", Proc. SPIE 9899, Optical Sensing and Detection IV, 98991E (4 May 2016); https://doi.org/10.1117/12.2229395

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