Structural coloration from total internal reflection at microscale concave surfaces and use for sensing in complex droplets

Ashley P. Saunders, Lauren D. Zarzar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Complex emulsion droplets consisting of hydrocarbon and fluorocarbon oils dispersed in water have been shown to exhibit iridescent structural color via interference from total internal reflection, and the color is tunable based on the size, shape, composition, and orientation of the droplets. Our study explores the structural color properties of complex emulsion droplets and their application to colorimetric chemical sensing through the use of an α- amylase responsive surfactant solution composed of I3-cyclodextrin, Triton X-100 surfactant, and Capstone FS-30 surfactant. We aim to demonstrate proof-of-concept sensitivity of biphasic oil-in-water emulsion droplets for colorimetric sensing through the correlation of reflected structural color patterns to droplet shape and size.

Original languageEnglish (US)
Title of host publicationAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII
EditorsGeorg von Freymann, Eva Blasco, Debashis Chanda
PublisherSPIE
ISBN (Electronic)9781510633476
DOIs
StatePublished - 2020
EventAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII 2020 - San Francisco, United States
Duration: Feb 2 2020Feb 5 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11292
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII 2020
CountryUnited States
CitySan Francisco
Period2/2/202/5/20

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Saunders, A. P., & Zarzar, L. D. (2020). Structural coloration from total internal reflection at microscale concave surfaces and use for sensing in complex droplets. In G. von Freymann, E. Blasco, & D. Chanda (Eds.), Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII [112920X] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11292). SPIE. https://doi.org/10.1117/12.2545151