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Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles

Third harmonic generation (THG) is a nonlinear optical process attractive in high-resolution interfacial studies, sub-wavelength light manipulation, and bio-molecular detection due to its capability of converting low-energy quanta into a quantum of a higher energy. One of the limitations in utilizin...

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Autores principales: Gao, Yi, Lee, Hyub, Xu, Wen, Jiao, Jiannan, Chen, Peng, Kim, Dong-Hwan, Kim, Young-Jin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6433956/
https://www.ncbi.nlm.nih.gov/pubmed/30911063
http://dx.doi.org/10.1038/s41598-019-41591-6
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author Gao, Yi
Lee, Hyub
Xu, Wen
Jiao, Jiannan
Chen, Peng
Kim, Dong-Hwan
Kim, Young-Jin
author_facet Gao, Yi
Lee, Hyub
Xu, Wen
Jiao, Jiannan
Chen, Peng
Kim, Dong-Hwan
Kim, Young-Jin
author_sort Gao, Yi
collection PubMed
description Third harmonic generation (THG) is a nonlinear optical process attractive in high-resolution interfacial studies, sub-wavelength light manipulation, and bio-molecular detection due to its capability of converting low-energy quanta into a quantum of a higher energy. One of the limitations in utilizing THG is its low power conversion efficiency; thus, various THG enhancement methods have been researched by involving plasmonic coupling effects or utilizing electric band gap resonances at quantum dots or two-dimensional materials. Meanwhile, lanthanide ion-doped up-conversion nanoparticles (UCNPs) can be excited by a multi-photon process similar to THG, but its interaction or resonance with THG has not been studied to date. In this Communication, we demonstrate the first coherent amplification of third-order harmonic femtosecond pulses at multi-layered UCNP thin-film with an amplification factor of 7.8. This amplification is made by the resonance interaction of incident femtosecond laser field, generated third-order harmonics, and the electric band gaps of UCNPs. The power contribution of the third-order harmonic and the up-conversion luminescence (UCL) is strongly dependent on the sample geometry due to the reabsorption effect. For in-depth understanding of the emission characteristics, spectral-domain, time-domain, radio-frequency (RF) domain, and polarization-dependence analysis were addressed. This coherent amplification of third harmonic (TH) at UCNP thin-films enables us to attain higher power, shorter wavelength, and ultra-short femtosecond pulses generated from a simple thin-film structure near to the target samples, which will pave a way to an ultrafast short-wavelength laser platform for material characterization, sub-wavelength photonics, and biomolecular detection.
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spelling pubmed-64339562019-04-02 Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles Gao, Yi Lee, Hyub Xu, Wen Jiao, Jiannan Chen, Peng Kim, Dong-Hwan Kim, Young-Jin Sci Rep Article Third harmonic generation (THG) is a nonlinear optical process attractive in high-resolution interfacial studies, sub-wavelength light manipulation, and bio-molecular detection due to its capability of converting low-energy quanta into a quantum of a higher energy. One of the limitations in utilizing THG is its low power conversion efficiency; thus, various THG enhancement methods have been researched by involving plasmonic coupling effects or utilizing electric band gap resonances at quantum dots or two-dimensional materials. Meanwhile, lanthanide ion-doped up-conversion nanoparticles (UCNPs) can be excited by a multi-photon process similar to THG, but its interaction or resonance with THG has not been studied to date. In this Communication, we demonstrate the first coherent amplification of third-order harmonic femtosecond pulses at multi-layered UCNP thin-film with an amplification factor of 7.8. This amplification is made by the resonance interaction of incident femtosecond laser field, generated third-order harmonics, and the electric band gaps of UCNPs. The power contribution of the third-order harmonic and the up-conversion luminescence (UCL) is strongly dependent on the sample geometry due to the reabsorption effect. For in-depth understanding of the emission characteristics, spectral-domain, time-domain, radio-frequency (RF) domain, and polarization-dependence analysis were addressed. This coherent amplification of third harmonic (TH) at UCNP thin-films enables us to attain higher power, shorter wavelength, and ultra-short femtosecond pulses generated from a simple thin-film structure near to the target samples, which will pave a way to an ultrafast short-wavelength laser platform for material characterization, sub-wavelength photonics, and biomolecular detection. Nature Publishing Group UK 2019-03-25 /pmc/articles/PMC6433956/ /pubmed/30911063 http://dx.doi.org/10.1038/s41598-019-41591-6 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gao, Yi
Lee, Hyub
Xu, Wen
Jiao, Jiannan
Chen, Peng
Kim, Dong-Hwan
Kim, Young-Jin
Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
title Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
title_full Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
title_fullStr Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
title_full_unstemmed Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
title_short Coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
title_sort coherent power amplification of third-order harmonic femtosecond pulses at thin-film up-conversion nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6433956/
https://www.ncbi.nlm.nih.gov/pubmed/30911063
http://dx.doi.org/10.1038/s41598-019-41591-6
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