Determination of nonlinear refractive index of large area monolayer MoS2 at telecommunication wavelength using time-resolved Z-scan technique
Document Type
Article
Publication Date
10-1-2024
Abstract
The nonlinear refractive index of large area monolayer molybdenum disulfide (MoS2) thin film at the 1,550 nm wavelength band is determined using time-resolved z-scan technique. MoS2 exhibits positive nonlinear phase shift with a large nonlinear refractive index, n(2) value of 1.40 x 10(-13) m(2) W-1. The obtained value is similar to the n(2) value of monolayer MoS2 film measured at 2.0 mu m, and is approximately five and seven orders of magnitude larger than silicon and common bulk dielectrics. The large n(2) indicates that MoS2 can be used as nonlinear refractive 2D material for photonics applications operating in the 1,550 nm optical telecommunications wavelength band.
Keywords
Nonlinear refractive index, molybdenum disulfide, Z-scan, telecommunication wavelength
Divisions
PHYSICS,photonics
Funders
Malaysian Ministry of Higher Education Fundamental Research Grant Scheme (FRGS/1/2020/STG07/UM/01/2),Malaysia's Ministry of Education via My Brain Sc scholarship
Publication Title
Journal of Nonlinear Optical Physics & Materials
Volume
33
Issue
05
Publisher
World Scientific Publishing
Publisher Location
5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE