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Q: Fachverband Quantenoptik und Photonik

Q 70: Quantum Optics

Q 70.7: Vortrag

Freitag, 15. März 2024, 16:00–16:15, HS 3118

Chiral sensing with nanophotonics — •Diana Shakirova, Adrià Canós Valero, and Thomas Weiss — Institute of Physics, University of Graz, Universitaetsplatz 5, 8010 Graz, Austria

Chirality is a geometrical property whereby the mirror image of an object does not coincide with the object itself. The handedness (left or right orientation in space) of chiral molecules can define its action on living organisms, making chiral sensing a crucial task in biology, chemistry and medicine. The difference in transmission (DT) between left- and right-handed circularly polarized incident light is used as a sensing measure, but this signal is extremely small. Nanophotonics provides a great potential for enhancing DT using resonances maintained by nanostructures in optical frequency range. In the work we discuss a theory of chiral light-matter interaction, general approaches to enhance DT,and present particular nanostructures for chiral sensing that support high-Q modes.

Keywords: nanophotonics; chirality; sensing; resonant states