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- Title
Determination of nonlinear refractive index of large area monolayer MoS<sub>2</sub> at telecommunication wavelength using time-resolved Z-scan technique.
- Authors
Chew, Jing Wen; Chong, Wu Yi; Muniandy, Sithi Vinayakam; Yap, Yuen Kiat; Ahmad, Harith
- 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. 4 0 × 1 0 − 1 3 m 2 W − 1 . The obtained value is similar to the n 2 value of monolayer MoS2 film measured at 2.0 μ 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.
- Subjects
MONOMOLECULAR films; REFRACTIVE index; TELECOMMUNICATION; WAVELENGTHS; MOLYBDENUM disulfide; THIN films
- Publication
Journal of Nonlinear Optical Physics & Materials, 2024, Vol 33, Issue 4, p1
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863523500522