New polymer sorbents for waveguide-enhanced Raman spectroscopy (WERS) and refractive index-based photonic sensing

Ethan P. Luta; Brittany Watterson; Matthew Z. Yates; Benjamin L. Miller

doi:10.1117/12.2619383

30 May 2022 New polymer sorbents for waveguide-enhanced Raman spectroscopy (WERS) and refractive index-based photonic sensing

Ethan P. Luta, Brittany Watterson, Matthew Z. Yates, Benjamin L. Miller

Author Affiliations +

Proceedings Volume 12116, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIII; 121160E (2022) https://doi.org/10.1117/12.2619383
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

Polymer sorbents able to selectively capture specific classes of analytes have attracted significant interest in the context of photonic sensors (particularly waveguide-enhanced Raman spectroscopy, or WERS) for chemical warfare agents and industrial gases. We have developed a method for using aminopropyl methylsiloxane-dimethylsiloxane copolymers as inexpensive starting materials for the synthesis of new sorbents for chemical and biochemical sensing. Conversion of the starting polymer to a product sorbent can be accomplished via a simple, single-step reductive amination reaction with an aldehyde. Preliminary tests of a sorbent in the context of refractive index-based sensing of energetic compounds (explosives) using silicon nitride micoring resonators is also discussed.

Conference Presentation

Citation Download Citation

Ethan P. Luta, Brittany Watterson, Matthew Z. Yates, and Benjamin L. Miller "New polymer sorbents for waveguide-enhanced Raman spectroscopy (WERS) and refractive index-based photonic sensing", Proc. SPIE 12116, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXIII, 121160E (30 May 2022); https://doi.org/10.1117/12.2619383

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