Abstract
The unique in-plane and out-of-plane anisotropy of α-MoO3 has attracted considerable interest with regard to poten-tial optoelectronic applications.However,most research has focused on the mid-infrared spectrum,leaving its properties and applications in the visible and near-infrared light spectrum less explored.This study advances the understanding of waveguiding properties of α-MoO3 by near-field imaging of the waveguide modes along the[100]and[001]directions ofα-MoO3 flakes at 633 nm and 785 nm.We investigate the effects of flake thickness and documented the modes'dispersion relationships,which is crucial for tailoring the optical responses of α-MoO3 in device applications.Our findings enhance the field of research into α-MoO3,highlighting its utility in fabricating next-generation optoelectronic devices due to its unique optically anisotropic waveguide.
基金项目
National Key Research and Development Program of China(2022YFA1203500)
Strategic Priority Research Program of the Chinese Academy of Sciences(XDB30000000)
CAS Youth Interdisciplinary Team()