Extended chiro-optical near-field response of achiral plasmonic lattices

Emilija Petronijevic, Elizabeth Mendoza Sandoval, Mohammad Ramezani, César L. Ordóñez-Romero, Cecilia Noguez, Fabio Antonio Bovino, Concita Sibilia, Giuseppe Pirruccio (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

We investigate the chiro-optical properties of the electromagnetic near-field associated with the excitation of collective optical resonances (surface lattice resonances) in achiral plasmonic lattices. These arrays are specially designed to support dispersive resonances with nontrivial, multipolar near-field distributions in the surroundings of the nanostructure, which gives rise to an enhanced chiro-optical response. The presence of these multipolar resonances in lattices without explicitly broken mirror symmetry is experimentally confirmed by far-field extinction measurements, while the angular, spectral, and spatial dependence of the associated chiral near-field are numerically simulated. In contrast with typical pseudochiral systems, the extended chiro-optical near-field response appears even at normal incidence. We believe that surface lattice resonances in achiral plasmonic lattices can be potentially utilized as a substrate for enhanced background-free enantioselectivity and tunable chiral molecule recognition over large areas.

Originele taal-2Engels
Pagina's (van-tot)23620-23627
Aantal pagina's8
TijdschriftJournal of Physical Chemistry C
Volume123
Nummer van het tijdschrift38
DOI's
StatusGepubliceerd - 26 sep 2019

Vingerafdruk

near fields
optical resonance
Enantioselectivity
far fields
Nanostructures
Mirrors
extinction
Optical properties
incidence
mirrors
electromagnetism
optical properties
Molecules
symmetry
Substrates
excitation
molecules

Citeer dit

Petronijevic, E., Sandoval, E. M., Ramezani, M., Ordóñez-Romero, C. L., Noguez, C., Bovino, F. A., ... Pirruccio, G. (2019). Extended chiro-optical near-field response of achiral plasmonic lattices. Journal of Physical Chemistry C, 123(38), 23620-23627. https://doi.org/10.1021/acs.jpcc.9b06556
Petronijevic, Emilija ; Sandoval, Elizabeth Mendoza ; Ramezani, Mohammad ; Ordóñez-Romero, César L. ; Noguez, Cecilia ; Bovino, Fabio Antonio ; Sibilia, Concita ; Pirruccio, Giuseppe. / Extended chiro-optical near-field response of achiral plasmonic lattices. In: Journal of Physical Chemistry C. 2019 ; Vol. 123, Nr. 38. blz. 23620-23627.
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abstract = "We investigate the chiro-optical properties of the electromagnetic near-field associated with the excitation of collective optical resonances (surface lattice resonances) in achiral plasmonic lattices. These arrays are specially designed to support dispersive resonances with nontrivial, multipolar near-field distributions in the surroundings of the nanostructure, which gives rise to an enhanced chiro-optical response. The presence of these multipolar resonances in lattices without explicitly broken mirror symmetry is experimentally confirmed by far-field extinction measurements, while the angular, spectral, and spatial dependence of the associated chiral near-field are numerically simulated. In contrast with typical pseudochiral systems, the extended chiro-optical near-field response appears even at normal incidence. We believe that surface lattice resonances in achiral plasmonic lattices can be potentially utilized as a substrate for enhanced background-free enantioselectivity and tunable chiral molecule recognition over large areas.",
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Petronijevic, E, Sandoval, EM, Ramezani, M, Ordóñez-Romero, CL, Noguez, C, Bovino, FA, Sibilia, C & Pirruccio, G 2019, 'Extended chiro-optical near-field response of achiral plasmonic lattices', Journal of Physical Chemistry C, vol. 123, nr. 38, blz. 23620-23627. https://doi.org/10.1021/acs.jpcc.9b06556

Extended chiro-optical near-field response of achiral plasmonic lattices. / Petronijevic, Emilija; Sandoval, Elizabeth Mendoza; Ramezani, Mohammad; Ordóñez-Romero, César L.; Noguez, Cecilia; Bovino, Fabio Antonio; Sibilia, Concita; Pirruccio, Giuseppe (Corresponding author).

In: Journal of Physical Chemistry C, Vol. 123, Nr. 38, 26.09.2019, blz. 23620-23627.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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AU - Petronijevic, Emilija

AU - Sandoval, Elizabeth Mendoza

AU - Ramezani, Mohammad

AU - Ordóñez-Romero, César L.

AU - Noguez, Cecilia

AU - Bovino, Fabio Antonio

AU - Sibilia, Concita

AU - Pirruccio, Giuseppe

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AB - We investigate the chiro-optical properties of the electromagnetic near-field associated with the excitation of collective optical resonances (surface lattice resonances) in achiral plasmonic lattices. These arrays are specially designed to support dispersive resonances with nontrivial, multipolar near-field distributions in the surroundings of the nanostructure, which gives rise to an enhanced chiro-optical response. The presence of these multipolar resonances in lattices without explicitly broken mirror symmetry is experimentally confirmed by far-field extinction measurements, while the angular, spectral, and spatial dependence of the associated chiral near-field are numerically simulated. In contrast with typical pseudochiral systems, the extended chiro-optical near-field response appears even at normal incidence. We believe that surface lattice resonances in achiral plasmonic lattices can be potentially utilized as a substrate for enhanced background-free enantioselectivity and tunable chiral molecule recognition over large areas.

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Petronijevic E, Sandoval EM, Ramezani M, Ordóñez-Romero CL, Noguez C, Bovino FA et al. Extended chiro-optical near-field response of achiral plasmonic lattices. Journal of Physical Chemistry C. 2019 sep 26;123(38):23620-23627. https://doi.org/10.1021/acs.jpcc.9b06556