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Bornacelli J, Torres-Torres C, Crespo-Sosa A, Reyes-Esqueda JA, Oliver A. Plasmon-enhanced multi-photon excited photoluminescence of Au, Ag, and Pt nanoclusters. NANOTECHNOLOGY 2024; 35:175705. [PMID: 38266307 DOI: 10.1088/1361-6528/ad2233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 01/24/2024] [Indexed: 01/26/2024]
Abstract
In this work, we have studied the multi-photon excited photoluminescence from metal nanoclusters (NCs) of Au, Ag and Pt embedded in Al2O3matrix by ion implantation. The thermal annealing process allows to obtain a system composed of larger plasmonic metal nanoparticles (NPs) surrounded by photoluminescent ultra-small metal NCs. By exciting at 1064 nm, visible emission, ranging from 450 to 800 nm, was detected. The second and fourth-order nature of the multiphoton process was verified in a power-dependent study measured for each sample below the damage threshold. Experiments show that Au and Ag NCs exhibit a four-fold enhanced multiphoton excited photoluminescence with respect to that observed for Pt NCs, which can be explained as a result of a plasmon-mediated near-field process that is of less intensity for Pt NPs. These findings provide new opportunities to combine plasmonic nanoparticles and photoluminescent nanoclusters inside a robust inorganic matrix to improve their optical properties. Plasmon-enhanced multiphoton excited photoluminescence from metal nanoclusters may find potential application as ultrasmall fluorophores in multiphoton sensing, and in the development of solar cells with highly efficient energy conversion modules.
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Affiliation(s)
- J Bornacelli
- Departamento de Física, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico
| | - C Torres-Torres
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, Ciudad de México, 07738, Mexico
| | - A Crespo-Sosa
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico
| | - J A Reyes-Esqueda
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico
- Sabbatical Leave: Département de Physique, Faculté des sciences, Université de Sherbrooke, Québec J1K 2R1, Canada
| | - A Oliver
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de México, 04510, Mexico
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Pang C, Li R, Li Z, Dong N, Ren F, Wang J, Chen F. A Novel Hierarchical Nanostructure for Enhanced Optical Nonlinearity Based on Scattering Mechanism. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003172. [PMID: 32877018 DOI: 10.1002/smll.202003172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Surface modification of nonlinear optical materials (NOMs) is widely applied to fabricate diverse photonic devices, such as frequency combs, modulators, and all-optical switches. In this work, a double-layer nanostructure with heterogeneous nanoparticles (NPs) is proposed to achieve enhanced third-order optical nonlinearity of NOMs. The mechanism of modified optical nonlinearity is elucidated to be the scattering-induced energy transfer between adjacent NPs layers. Based on the LiNbO3 platform, as a typical example, double layers of embedded Cu and Ag NPs are synthesized by sequential ion implantation, demonstrating twofold magnitude of near-infrared enhancement factor and modulation depth in comparison with a single layer of Cu NPs. With the elastic collision model and thermolysis theory being considered, the shift of the localized surface plasmon resonance (LSPR) peak reveals the formation mechanism of the double-layer nanostructure. Utilizing the enhanced optical nonlinearity of LiNbO3 as modulators, a Q-switched mode-locked waveguide laser at 1 µm is achieved with shorter pulse duration. It suggests potential applications to improve the performance of nonlinear photonic devices by using double-layer metallic nanostructures.
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Affiliation(s)
- Chi Pang
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Rang Li
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Ziqi Li
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
| | - Ningning Dong
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Feng Ren
- Department of Physics, Center for Ion Beam Application and Center for Electron Microscopy, Wuhan University, Wuhan, 430072, China
| | - Jun Wang
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Feng Chen
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, China
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Olague G, Bakshi S, Álvarez-Borrego J, Mait JN, Martínez-García A, Testorf ME. Optics theory and practice in Iberoamerica: introduction to the feature issue. APPLIED OPTICS 2020; 59:IBO1-IBO5. [PMID: 32400700 DOI: 10.1364/ao.396153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 06/11/2023]
Abstract
This feature issue of Applied Optics (AO) on Optics Theory and Practice in Iberoamerica (OTPI) collects significantly expanded refereed papers presented at the multiconference RIAO-OPTILAS-MOPM, held in Cancún, Mexico, Sept. 23-27, 2019. All authors who participated at the conference were contacted and invited to contribute to this special issue. Furthermore, the AO dedicated issue on OTPI was open to contributions from other practitioners in all related areas, through a call for papers published in AO.
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