Open AccessSum frequency generation in pure zinc-blende GaAs nanowires
Author(s) -
Xiaoqing Zhang,
Hao He,
Jintao Fan,
Chenglin Gu,
Xin Yan,
Minglie Hu,
Xia Zhang,
Xiaomin Ren,
Chingyue Wang
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.028432
Subject(s) - femtosecond , materials science , laser , nanowire , optoelectronics , optics , sum frequency generation , semiconductor , semiconductor laser theory , polarization (electrochemistry) , nonlinear optics , physics , chemistry
Nonlinearity of semiconductor nanowires makes them potential frequency converters in nanoscale optoelectronics. Here we demonstrate that sum frequency generation signals can be acquired from GaAs nanowires when excited by a femtosecond laser at 1048 nm and a tunable optical parametric oscillator ranging from 1416 nm to 1770 nm. The SFG intensity is insensitive to the polarization but quite sensitive to the temporal overlap of incident lasers pulses. It is shown that they can work for pulse-width measurement of femtosecond lasers in the near infrared band. Our results suggest GaAs NWs to be excellent optical nonlinear mixers in nanoscale optoelectronics.