Enhancement of Optical Nonlinearity in the Triangular Gold Nanoplates on Indium Tin Oxide

IEEE Photonics Journal

Dongyang Liu¹  Jing Huang²  Lili Miao²  Chujun Zhao³  Jie Li³ 

[1] Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha, Hunan, China;Key Laboratory for Micro&x002F;;Nano Optoelectronic Devices of Ministry of Education &

关键词: Light interaction;    nonlinear effects;    Kerr effect;    optical properties of photonic materials;    ultrafast nonlinear process;    plasmonics;   

DOI  :  10.1109/JPHOT.2021.3085871

来源: DOAJ

【 摘 要 】

The nonlinear optical materials with small footprint, low operating energy, ultrafast and large nonlinear optical response are highly required for the signal processing. Here, we investigated the broadband optical nonlinear response of the triangular gold nanoplates on indium tin oxide (ITO) coated glass, and obtained a large optical nonlinear enhancement at its localized surface plasmon resonance (LSPR) region at the wavelength of 780 nm, far from the ENZ (epsilon-near-zero) region of ITO. The measured nonlinear refractive index and nonlinear absorption coefficient can reach up to 8.39×10^-15 m²/W and 5.81×10^-8 m/W, respectively. The experimental results highlight the noble metals’ potential for nonlinear optics and nanophotonics.

【 授权许可】

Unknown