Helicity preserving dielectric metasurfaces for enhanced detection of chiral molecules (Conference Presentation)

Ivan Fernandez-Corbaton; Florian Graf; Joshua Feis; Julian Koepfler; Dominik Beutel; Xavier Garcia-Santiago; Carsten Rockstuhl; Martin Wegener

doi:10.1117/12.2530087

9 September 2019 Helicity preserving dielectric metasurfaces for enhanced detection of chiral molecules (Conference Presentation)

Ivan Fernandez-Corbaton, Florian Graf, Joshua Feis, Julian Koepfler, Dominik Beutel, Xavier Garcia-Santiago, Carsten Rockstuhl, Martin Wegener

Author Affiliations +

Proceedings Volume 11080, Metamaterials, Metadevices, and Metasystems 2019; 110800S (2019) https://doi.org/10.1117/12.2530087
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

The sensing of chiral molecules is important for chemical, pharmaceutical, and medical applications. The fast and accurate testing of small quantities of analyte by optical means is desirable, in particular for lab-on-a-chip technologies. Different nanostructures have been proposed for enhancing the molecular circular dichroism (CD) in their near fields, yet not all structures and near fields serve this purpose equally well. We will present the design guidelines that lead to nanostructures that enhance the CD signal of molecular solutions, use these guidelines for optimizing arrays of silicon disks, and demonstrate a more than tenfold increase in sensitivity.

Conference Presentation

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Ivan Fernandez-Corbaton, Florian Graf, Joshua Feis, Julian Koepfler, Dominik Beutel, Xavier Garcia-Santiago, Carsten Rockstuhl, and Martin Wegener "Helicity preserving dielectric metasurfaces for enhanced detection of chiral molecules (Conference Presentation)", Proc. SPIE 11080, Metamaterials, Metadevices, and Metasystems 2019, 110800S (9 September 2019); https://doi.org/10.1117/12.2530087

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