In this work, we review the last attempts to use nanostructured materials for the enhancement of the chiro-optical effects at the nanoscale. Starting from the numerical design, we review different geometries that exhibit circular dichroic behavior in the far field; we then focus on the new branch of near-field chirality, where numerous nanostructures have been proposed for background-free chiral sensing. The next section reports on nanofabrication methods, with a special focus on self-assembling, cost- and time-efficient techniques. Finally, we review the chiro-optical experiments. Besides conventional extinction-based techniques, we are today able to reveal chiro-optical effects via photothermal behavior and photoluminescence, going down to single nanostructure chirality with sophisticated near-field techniques. We believe that the novel designs, state-of-the-art nanofabrication and modern characterization techniques have come to a stage to provide chiro-optical sensors and light components based on nanostructures.

Nanostructured materials for circular dichroism and chirality at the nanoscale: Towards unconventional characterization [Invited] / Petronijevic, E.; Belardini, A.; Leahu, G.; Li Voti, R.; Sibilia, C.. - In: OPTICAL MATERIALS EXPRESS. - ISSN 2159-3930. - 12:7(2022), pp. 2724-2746. [10.1364/OME.456496]

Nanostructured materials for circular dichroism and chirality at the nanoscale: Towards unconventional characterization [Invited]

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

Abstract

In this work, we review the last attempts to use nanostructured materials for the enhancement of the chiro-optical effects at the nanoscale. Starting from the numerical design, we review different geometries that exhibit circular dichroic behavior in the far field; we then focus on the new branch of near-field chirality, where numerous nanostructures have been proposed for background-free chiral sensing. The next section reports on nanofabrication methods, with a special focus on self-assembling, cost- and time-efficient techniques. Finally, we review the chiro-optical experiments. Besides conventional extinction-based techniques, we are today able to reveal chiro-optical effects via photothermal behavior and photoluminescence, going down to single nanostructure chirality with sophisticated near-field techniques. We believe that the novel designs, state-of-the-art nanofabrication and modern characterization techniques have come to a stage to provide chiro-optical sensors and light components based on nanostructures.
chirality; metamaterials; nanostructures; plasmonic
01 Pubblicazione su rivista::01a Articolo in rivista
Nanostructured materials for circular dichroism and chirality at the nanoscale: Towards unconventional characterization [Invited] / Petronijevic, E.; Belardini, A.; Leahu, G.; Li Voti, R.; Sibilia, C.. - In: OPTICAL MATERIALS EXPRESS. - ISSN 2159-3930. - 12:7(2022), pp. 2724-2746. [10.1364/OME.456496]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1652819
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