Electric Field Effect on Optical Second-harmonic Generation of Amphoteric Megamolecule Aggregates
Applied Physics
2018-05-29 v3 Optics
Abstract
We have detected second-order nonlinear optical response from an amphoteric mega-saccharides named sacran under a needle/ring electrode stimulus by using an optical second harmonic generation (SHG) microscope. SHG was observed from sacran in the neighborhood of the negatively biased needle electrode below -4.5 V with respect to the outer ring electrode. From the incident light polarization dependence of SHG, this sacran was suggested to be oriented toward the electrode needle. SHG of the sacran polymer was judged to be induced by sacran aggregates with net positive charge.
Keywords
Cite
@article{arxiv.1711.09624,
title = {Electric Field Effect on Optical Second-harmonic Generation of Amphoteric Megamolecule Aggregates},
author = {Yue Zhao and Yanrong Li and Khuat Thi Thu Hien and Goro Mizutani and Nobuaki Ito and Harvey N. Rutt and Maiko Okajima and Tatsuo Kaneko},
journal= {arXiv preprint arXiv:1711.09624},
year = {2018}
}