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Polarization-dependent optical responses in natural 2D layered mineral teallite

Multi-element layered materials enable the use of stoichiometric variation to engineer their optical responses at subwavelength scale. In this regard, naturally occurring van der Waals minerals allow us to harness a wide range of chemical compositions, crystal structures and lattice symmetries for l...

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Autores principales: Tripathi, Ravi P. N., Yang, Xiaodong, Gao, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8575908/
https://www.ncbi.nlm.nih.gov/pubmed/34750491
http://dx.doi.org/10.1038/s41598-021-01511-z
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author Tripathi, Ravi P. N.
Yang, Xiaodong
Gao, Jie
author_facet Tripathi, Ravi P. N.
Yang, Xiaodong
Gao, Jie
author_sort Tripathi, Ravi P. N.
collection PubMed
description Multi-element layered materials enable the use of stoichiometric variation to engineer their optical responses at subwavelength scale. In this regard, naturally occurring van der Waals minerals allow us to harness a wide range of chemical compositions, crystal structures and lattice symmetries for layered materials under atomically thin limit. Recently, one type of naturally occurring sulfide mineral, ternary teallite has attained significant interest in the context of thermoelectric, optoelectronic, and photovoltaic applications, but understanding of light-matter interactions in such ternary teallite crystals is scarcely available. Herein, polarization-dependent linear and nonlinear optical responses in mechanically exfoliated teallite crystals are investigated including anisotropic Raman modes, wavelength-dependent linear dichroism, optical band gap evolution, and anisotropic third-harmonic generation (THG). Furthermore, the third-order nonlinear susceptibility of teallite crystal is estimated using the thickness-dependent THG emission process. We anticipate that our findings will open the avenue to a better understanding of the tailored light-matter interactions in complex multi-element layered materials and their implications in optical sensors, frequency modulators, integrated photonic circuits, and other nonlinear signal processing applications.
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spelling pubmed-85759082021-11-09 Polarization-dependent optical responses in natural 2D layered mineral teallite Tripathi, Ravi P. N. Yang, Xiaodong Gao, Jie Sci Rep Article Multi-element layered materials enable the use of stoichiometric variation to engineer their optical responses at subwavelength scale. In this regard, naturally occurring van der Waals minerals allow us to harness a wide range of chemical compositions, crystal structures and lattice symmetries for layered materials under atomically thin limit. Recently, one type of naturally occurring sulfide mineral, ternary teallite has attained significant interest in the context of thermoelectric, optoelectronic, and photovoltaic applications, but understanding of light-matter interactions in such ternary teallite crystals is scarcely available. Herein, polarization-dependent linear and nonlinear optical responses in mechanically exfoliated teallite crystals are investigated including anisotropic Raman modes, wavelength-dependent linear dichroism, optical band gap evolution, and anisotropic third-harmonic generation (THG). Furthermore, the third-order nonlinear susceptibility of teallite crystal is estimated using the thickness-dependent THG emission process. We anticipate that our findings will open the avenue to a better understanding of the tailored light-matter interactions in complex multi-element layered materials and their implications in optical sensors, frequency modulators, integrated photonic circuits, and other nonlinear signal processing applications. Nature Publishing Group UK 2021-11-08 /pmc/articles/PMC8575908/ /pubmed/34750491 http://dx.doi.org/10.1038/s41598-021-01511-z Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Tripathi, Ravi P. N.
Yang, Xiaodong
Gao, Jie
Polarization-dependent optical responses in natural 2D layered mineral teallite
title Polarization-dependent optical responses in natural 2D layered mineral teallite
title_full Polarization-dependent optical responses in natural 2D layered mineral teallite
title_fullStr Polarization-dependent optical responses in natural 2D layered mineral teallite
title_full_unstemmed Polarization-dependent optical responses in natural 2D layered mineral teallite
title_short Polarization-dependent optical responses in natural 2D layered mineral teallite
title_sort polarization-dependent optical responses in natural 2d layered mineral teallite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8575908/
https://www.ncbi.nlm.nih.gov/pubmed/34750491
http://dx.doi.org/10.1038/s41598-021-01511-z
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