Chirality, a lack of mirror symmetry, is present in nature at all scales; at the nanoscale, it governs the biochemical reactions of many molecules, influencing their pharmacology and toxicity. Chiral substances interact with left and right circularly polarized light differently, but this difference is very minor in natural materials. Specially engineered, nanostructured, periodic materials can enhance the chiro‐optical effects if the symmetry in their interactions with circular polarization is broken. In the diffraction range of such metasurfaces, the intensity of diffracted orders depends on the chirality of the input beam. In this work, we combine a photothermal deflection experiment with a novel theoretical framework to reconstruct both the thermal and optical behavior of chiro‐optical behavior in diffracted beams.

Characterization of chirality in diffractive metasurfaces by photothermal deflection technique / Li Voti, R.; Leahu, G.; Petronijevic, E.; Belardini, A.; Cesca, T.; Scian, C.; Mattei, G.; Sibilia, C.. - In: APPLIED SCIENCES. - ISSN 2076-3417. - 12:3(2022), p. 1109. [10.3390/app12031109]

Characterization of chirality in diffractive metasurfaces by photothermal deflection technique

Li Voti R.;Leahu G.;Petronijevic E.;Belardini A.;Sibilia C.
2022

Abstract

Chirality, a lack of mirror symmetry, is present in nature at all scales; at the nanoscale, it governs the biochemical reactions of many molecules, influencing their pharmacology and toxicity. Chiral substances interact with left and right circularly polarized light differently, but this difference is very minor in natural materials. Specially engineered, nanostructured, periodic materials can enhance the chiro‐optical effects if the symmetry in their interactions with circular polarization is broken. In the diffraction range of such metasurfaces, the intensity of diffracted orders depends on the chirality of the input beam. In this work, we combine a photothermal deflection experiment with a novel theoretical framework to reconstruct both the thermal and optical behavior of chiro‐optical behavior in diffracted beams.
2022
Chirality; diffraction; photothermal deflection technique; self‐assembled metasurfaces
01 Pubblicazione su rivista::01a Articolo in rivista
Characterization of chirality in diffractive metasurfaces by photothermal deflection technique / Li Voti, R.; Leahu, G.; Petronijevic, E.; Belardini, A.; Cesca, T.; Scian, C.; Mattei, G.; Sibilia, C.. - In: APPLIED SCIENCES. - ISSN 2076-3417. - 12:3(2022), p. 1109. [10.3390/app12031109]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1652816
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