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Syubaev S, Gordeev I, Modin E, Terentyev V, Storozhenko D, Starikov S, Kuchmizhak AA. Security labeling and optical information encryption enabled by laser-printed silicon Mie resonators. NANOSCALE 2022; 14:16618-16626. [PMID: 36317669 DOI: 10.1039/d2nr04179k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Fighting against the falsification of valuable items remains a crucial social-threatening challenge stimulating a never-ending search for novel anti-counterfeiting strategies. The demanding security labels must simultaneously address multiple requirements (high density of the recorded information, high protection degree, etc.) and be realized via scalable and inexpensive technologies. Here, the direct reproducible femtosecond-laser patterning of thin glass-supported amorphous (α-)Si films is proposed for optical information encryption and the scalable and highly reproducible fabrication of security labels composed of Raman-active hemispherical Si nanoparticles (NPs). Laser printing conditions allow the precise control of the diameter of the formed NPs ensuring translation of their dipolar Mie resonance position within the entire visible spectral range. Two-temperature molecular dynamics simulations clarify the origin of α-Si NP formation by rupture of the molten Si layer driven by a negative GPa-range pressure near the liquid-solid interface. Arrangement of the laser-printed Mie-resonant NP allows the creation of hidden security labels offering several easy-to-realize information encryption strategies (for example, local laser-induced post-crystallization or mixing Mie-resonant and non-resonant NPs), additional protection modalities, facile Raman mapping readout and dense information recording (up to 60 000 dots per inch) close to the optical diffraction limit. The developed fabrication strategy is simple, inexpensive, and scalable and can be realized based on cheap Earth-abundant materials and commercially-available equipment justifying its practical applicability and attractiveness for anti-counterfeit and security applications.
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Affiliation(s)
- Sergey Syubaev
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia.
| | - Ilya Gordeev
- Joint Institute for High Temperatures of RAS, Moscow, Russia
| | - Evgeny Modin
- CIC NanoGUNE BRTA, Avda Tolosa 76, 20018 Donostia-San Sebastian, Spain
| | - Vadim Terentyev
- Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Dmitriy Storozhenko
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia.
| | - Sergei Starikov
- The Interdisciplinary Centre for Advanced Materials Simulation (ICAMS), Ruhr-Universitat Bochum, Germany.
| | - Aleksandr A Kuchmizhak
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia.
- Far Eastern Federal University, Vladivostok 690091, Russia
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Koromyslov S, Ageev E, Ponkratova E, Larin A, Shishkin I, Danilov D, Mukhin I, Makarov S, Zuev D. Femtosecond Laser-Assisted Formation of Hybrid Nanoparticles from Bi-Layer Gold–Silicon Films for Microscale White-Light Source. NANOMATERIALS 2022; 12:nano12101756. [PMID: 35630977 PMCID: PMC9147574 DOI: 10.3390/nano12101756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/18/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022]
Abstract
It is very natural to use silicon as a primary material for microelectronics. However, silicon application in nanophotonics is limited due to the indirect gap of its energy band structure. To improve the silicon emission properties, it can be combined with a plasmonic part. The resulting metal–dielectric (hybrid) nanostructures have shown their excellence compared to simple metallic dielectric nanostructures. Still, in many cases, the fabrication of such structures is time consuming and quite difficult. Here, for the first time, we demonstrate a single-step and lithography-free laser-induced dewetting of bi-layer nanoscale-thickness gold–silicon films supported by a glass substrate to produce hybrid nanoparticles. For obtaining hybrid nanoparticles, we study nonlinear photoluminescence by mapping their optical response and morphology by scanning electron microscopy. This method can be used for the fabrication of arrays of hybrid nanoparticles providing white-light photoluminescence with a good control of their microscopic sizes and position. The developed approach can be useful for a wide range of photonic applications including the all-optical data processing and storage where miniaturization down to micro- and nanoscale together with an efficiency increase is of high demand.
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Affiliation(s)
- Sergei Koromyslov
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
| | - Eduard Ageev
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
- Correspondence:
| | - Ekaterina Ponkratova
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
| | - Artem Larin
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
| | - Ivan Shishkin
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
| | - Denis Danilov
- Interdisciplinary Resource Center for Nanotechnology, Saint Petersburg State University, 199034 Saint-Petersburg, Russia;
| | - Ivan Mukhin
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
- Nanobiotechnology Laboratory, Alferov University, 194021 Saint-Petersburg, Russia
| | - Sergey Makarov
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
| | - Dmitry Zuev
- Department of Physics, ITMO University, 191002 Saint-Petersburg, Russia; (S.K.); (E.P.); (A.L.); (I.S.); (I.M.); (S.M.); (D.Z.)
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