Laser-Induced Chirality of Plasmonic Nanoparticles Embedded in Porous Matrix
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Published:2023-05-13
Issue:10
Volume:13
Page:1634
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ISSN:2079-4991
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Container-title:Nanomaterials
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language:en
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Short-container-title:Nanomaterials
Author:
Sapunova Anastasiia A.1ORCID, Yandybaeva Yulia I.2ORCID, Zakoldaev Roman A.2ORCID, Afanasjeva Alexandra V.1ORCID, Andreeva Olga V.3ORCID, Gladskikh Igor A.1ORCID, Vartanyan Tigran A.1ORCID, Dadadzhanov Daler R.1ORCID
Affiliation:
1. International Research and Education Center for Physics of Nanostructures, ITMO University, 49 Kronverksky pr., St. Petersburg 197101, Russia 2. Institute of Laser Technology, ITMO University, 49 Kronverksky pr., St. Petersburg 197101, Russia 3. Research and Educational Center for Photonics and Optoinformatics, ITMO University, 49 Kronverksky pr., St. Petersburg 197101, Russia
Abstract
Chiral plasmonic nanostructures have emerged as promising objects for numerous applications in nanophotonics, optoelectronics, biosensing, chemistry, and pharmacy. Here, we propose a novel method to induce strong chirality in achiral ensembles of gold nanoparticles via irradiation with circularly-polarized light of a picosecond Nd:YAG laser. Embedding of gold nanoparticles into a nanoporous silicate matrix leads to the formation of a racemic mixture of metal nanoparticles of different chirality that is enhanced by highly asymmetric dielectric environment of the nanoporous matrix. Then, illumination with intense circularly-polarized light selectively modifies the particles with the chirality defined by the handedness of the laser light, while their “enantiomers” survive the laser action almost unaffected. This novel modification of the spectral hole burning technique leads to the formation of an ensemble of plasmonic metal nanoparticles that demonstrates circular dichroism up to 100 mdeg. An unforeseen peculiarity of the chiral nanostructures obtained in this way is that 2D and 3D nanostructures contribute almost equally to the observed circular dichroism signals. Thus, the circular dichroism is neither even nor odd under reversal of direction of light propagation. These findings will help guide the development of a passive optical modulator and nanoplatform for enhanced chiral sensing and catalysis.
Funder
Russian Science Foundation
Subject
General Materials Science,General Chemical Engineering
Reference34 articles.
1. Yang, Y., Kim, Y., Gwak, J., So, S., Mun, J., Kim, M., Jeong, H., Kim, I., Badloe, T., and Rho, J. (2021). Chirality, Magnetism and Magnetoelectricity, Springer. 2. Chirality and protein biosynthesis;Banik;Top. Curr. Chem.,2013 3. Chirality Effects in Peptide Assembly Structures;Zheng;Front. Bioeng. Biotechnol.,2021 4. Nucleobases, nucleosides, and nucleotides: Versatile biomolecules for generating functional nanomaterials;Pu;Chem. Soc. Rev.,2018 5. Chiral Systems Made from DNA;Winogradoff;Adv. Sci.,2021
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