Enhanced Nonlinear Optical Limiting In Tis2 Dichalcogenide 2D Sheets

Keywords

grapheme; Molybdenum disulfide; optical limiting; optical z-scan; photo-acoustic z-scan; Titanium disulphide

Abstract

Two dimensional (2D) graphene and transition metal dichalcogenides are an emerging class of extremely interesting materials showing unique physical properties, such as large third-order optical nonlinearity, offering potential applications in optical limiting. Here we report the optical limiting properties of Titanium disufide (TiS2), and Graphene sheets measured using open aperture and photo-acoustic z-scan techniques. Our best results were observed in TiS2 Sheets, yielding an optical limiting of 77% at an irradiance of 0.713 GW/cm2with 2PA and 3PA absorption coefficient to be 80cm/GW and 2000 cm3/GW2 respectively.Also, TiS2 sheets show improved shelf life and stability upon irradiation with higher laser powers. This demonstrates the feasibility of using them as a potential candidate for optical limiting applications.

Publication Date

1-1-2017

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

10360

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2275631

Socpus ID

85034081884 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85034081884

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