PMMA-micro goblet resonators for biosensing applications

Torsten Beck; Mario Hauser; Tobias Grossmann; Dominik Floess; Simone Schleede; Julian Fischer; Christoph Vannahme; Timo Mappes; Heinz Kalt

doi:10.1117/12.874871

8 February 2011 PMMA-micro goblet resonators for biosensing applications

Torsten Beck, Mario Hauser, Tobias Grossmann, Dominik Floess, Simone Schleede, Julian Fischer, Christoph Vannahme, Timo Mappes, Heinz Kalt

Author Affiliations +

Proceedings Volume 7888, Frontiers in Biological Detection: From Nanosensors to Systems III; 78880A (2011) https://doi.org/10.1117/12.874871
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

We report on a new type of whispering gallery mode (WGM) resonator made of out of low-loss polymer poly (methyl methacrylate) (PMMA). These optical cavities are fabricated using standard semiconductor processing methods in combination with a specific thermal reflow process. During this subsequent thermal treatment, surface tension leads to the goblet like geometry of the resonator and to an ultra smooth surface. The Q-factor of these goblet resonators is above 2·10⁶ in the 1310 nm wavelength range. In order to demonstrate the applicability of the goblet resonators for bio sensing, Bovine Serum Albumin was detected by monitoring the shift of resonator modes due to protein adsorption.

Citation Download Citation

Torsten Beck, Mario Hauser, Tobias Grossmann, Dominik Floess, Simone Schleede, Julian Fischer, Christoph Vannahme, Timo Mappes, and Heinz Kalt "PMMA-micro goblet resonators for biosensing applications", Proc. SPIE 7888, Frontiers in Biological Detection: From Nanosensors to Systems III, 78880A (8 February 2011); https://doi.org/10.1117/12.874871

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