Abstract
Nanoscale waveguides are basic building blocks of integrated optical devices. Especially, waveguides made from nonlinear optical materials, such as lithium niobate, allow access to a broad range of applications using second-order nonlinear frequency conversion processes. Based on a lithium niobate on insulator substrate, millimeter-long nanoscale waveguides were fabricated with widths as small as 200 nm. The fabrication was done by means of potassium hydroxide-assisted ion-beam-enhanced etching. The waveguides were optically characterized in the near infrared wavelength range showing phase-matched second-harmonic generation.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Juanjuan Lu, Joshua B. Surya, Xianwen Liu, Yuntao Xu, and Hong X. Tang
Opt. Lett. 44(6) 1492-1495 (2019)
Jia-Yang Chen, Chao Tang, Zhao-Hui Ma, Zhan Li, Yong Meng Sua, and Yu-Ping Huang
Opt. Lett. 45(13) 3789-3792 (2020)
Cheng Wang, Xiao Xiong, Nicolas Andrade, Vivek Venkataraman, Xi-Feng Ren, Guang-Can Guo, and Marko Lončar
Opt. Express 25(6) 6963-6973 (2017)