Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.15: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Whispering gallery mode resonators made from BBO — Guoping Lin1, •Josef Urban Fürst1,2, Dmitry Strekalov1, Ivan Grudinin1, and Nan Yu1 — 1Jet Propulsion Laboratory, California Institute of Technology. Pasadena, California, USA — 2Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg. Erlangen, Germany
We demonstrate the first whispering gallery resonators made from the nonlinear crystal beta barium borate. Quality factors were measured at various optical wavelengths and they exceeded 108 in the ultraviolet wavelength regime. From these measurements we inferred new upper bounds for the absorption coefficients of beta barium borate at 1560 nm, 980 nm and 370 nm. Additionally, the polarization properties of the resonances in this angle-cut birefringent resonator were characterized. With these measurements, we laid the basis to combine the outstanding properties of whispering gallery resonators with the nonlinear optical properties of beta barium borate. This offers novel applications for whispering gallery resonators in nonlinear optics in the ultraviolet wavelength regime.