Abstract

We report on an unambiguous observation of the third-order nonlinear optical effect, spatial self-phase modulation (SSPM), in a MoTe2 dispersion. The values of the third-order nonlinear optical coefficients effectively for one-layer MoTe2, χone-layer(3), are obtained through the SSPM method at excitation wavelengths 473, 532, 750, and 801 nm, respectively. The wind-chime model is used to explain the ring formation time. The wavelength dependence of χone-layer(3) compares well with the photo-absorption spectra. Significantly, we find a correlation between χ(3) and the carrier mobility μ or effective mass m*, which again further supports the laser-induced ac electron coherence in 2D materials.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Broadband spatial self-phase modulation of black phosphorous

Jingdi Zhang, Xuefeng Yu, Weijia Han, Bosai Lv, Xiaohong Li, Si Xiao, Yongli Gao, and Jun He
Opt. Lett. 41(8) 1704-1707 (2016)

Kerr Nonlinearity in germanium selenide nanoflakes measured by Z-scan and spatial self-phase modulation techniques and its applications in all-optical information conversion

Yue Jia, Zhongfu Li, Muhammad Saeed, Jie Tang, Houzhi Cai, and Yuanjiang Xiang
Opt. Express 27(15) 20857-20873 (2019)

Intensity-dependent nonlinear refraction of antimonene dispersions in the visible and near-infrared region

Gaozhong Wang, Sean Higgins, Kangpeng Wang, Daniel Bennett, Nina Milosavljevic, John James Magan, Saifeng Zhang, Xiaoyan Zhang, Jun Wang, and Werner J. Blau
Appl. Opt. 57(22) E147-E153 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription