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

Abstract 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 symmetr...

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Autores principales:	Ravi P. N. Tripathi, Xiaodong Yang, Jie Gao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c676ac666bb641b6917234d25fd23bd4
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spelling	oai:doaj.org-article:c676ac666bb641b6917234d25fd23bd42021-11-14T12:18:21ZPolarization-dependent optical responses in natural 2D layered mineral teallite10.1038/s41598-021-01511-z2045-2322https://doaj.org/article/c676ac666bb641b6917234d25fd23bd42021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01511-zhttps://doaj.org/toc/2045-2322Abstract 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.Ravi P. N. TripathiXiaodong YangJie GaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ravi P. N. Tripathi Xiaodong Yang Jie Gao Polarization-dependent optical responses in natural 2D layered mineral teallite
description	Abstract 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.
format	article
author	Ravi P. N. Tripathi Xiaodong Yang Jie Gao
author_facet	Ravi P. N. Tripathi Xiaodong Yang Jie Gao
author_sort	Ravi P. N. Tripathi
title	Polarization-dependent optical responses in natural 2D layered mineral teallite
title_short	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_sort	polarization-dependent optical responses in natural 2d layered mineral teallite
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c676ac666bb641b6917234d25fd23bd4
work_keys_str_mv	AT ravipntripathi polarizationdependentopticalresponsesinnatural2dlayeredmineralteallite AT xiaodongyang polarizationdependentopticalresponsesinnatural2dlayeredmineralteallite AT jiegao polarizationdependentopticalresponsesinnatural2dlayeredmineralteallite
_version_	1718429314201944064

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

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