An insight into strong many-body interactions in ultrathin anisotropic tin (II) monosulfide (Conference Presentation)

Aamir Mushtaq

doi:10.1117/12.2541590

1 April 2020 An insight into strong many-body interactions in ultrathin anisotropic tin (II) monosulfide (Conference Presentation)

Aamir Mushtaq

Author Affiliations +

Proceedings Volume 11358, Nonlinear Optics and its Applications 2020; 1135816 (2020) https://doi.org/10.1117/12.2541590
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Layered two-dimensional (2D) transition metal chalcogenides have attracted incredible interest due to their intriguing electronic, electrical, and optical properties. Liquid phase exfoliation (LPE) technique has been employed for the synthesis of ultrathin tin sulfide (SnS) sheets. A many body process, exciton-exciton annihilation was found to be significant in such anisotropic nanosheets of reduced dimensionality. Moreover, femtosecond Z-scan measurement infers that these 2D materials exhibit saturable absorption property because of optical transitions, which result in band filling from low to high energy band. The value of non-linear absorption coefficient was found greater and saturation intensity was found lower than that of other 2D materials. By taking the advantage of high nonlinear absorption coefficient and low saturation intensity ultrathin SnS nanosheets may prove to be a suitable candidate for various applications like saturable absorber, Q-switching.

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Citation Download Citation

Aamir Mushtaq "An insight into strong many-body interactions in ultrathin anisotropic tin (II) monosulfide (Conference Presentation)", Proc. SPIE 11358, Nonlinear Optics and its Applications 2020, 1135816 (1 April 2020); https://doi.org/10.1117/12.2541590

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KEYWORDS

Tin

Absorption

Chalcogenides

Femtosecond phenomena

Liquid phase epitaxy

Liquids

Optical properties

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