Tunable Optical Grating Based on the Flexoelectric Effect in a Bent-Core Nematic Liquid Crystal

Ying Xiang, Hong Zhen Jing, Zhi Dong Zhang, Wen Jiang Ye, Ming Ya Xu, Everett Wang, Péter Salamon, Nándor Éber, A. Buka

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Optical gratings are created by flexoelectric domains in a bent-core nematic liquid crystal. A unique feature of this structure is that its wavelength can be controlled by the amplitude of the applied voltage, as demonstrated by polarizing microscopy and light diffraction techniques. In order to understand the reaction of the system to the voltage change, the dynamics of the switching process is studied via digital processing of recorded image sequences. It is shown that the characteristics and the switching mechanisms are different if the lower voltage level is below or above the threshold of pattern onset. In both cases, the response to increasing voltage levels is much slower than the response to decreasing voltage levels.

Original languageEnglish
Article number064032
JournalPhysical Review Applied
Volume7
Issue number6
DOIs
Publication statusPublished - Jun 30 2017

Fingerprint

liquid crystals
gratings
electric potential
low voltage
microscopy
thresholds
diffraction
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Tunable Optical Grating Based on the Flexoelectric Effect in a Bent-Core Nematic Liquid Crystal. / Xiang, Ying; Jing, Hong Zhen; Zhang, Zhi Dong; Ye, Wen Jiang; Xu, Ming Ya; Wang, Everett; Salamon, Péter; Éber, Nándor; Buka, A.

In: Physical Review Applied, Vol. 7, No. 6, 064032, 30.06.2017.

Research output: Contribution to journalArticle

Xiang, Ying ; Jing, Hong Zhen ; Zhang, Zhi Dong ; Ye, Wen Jiang ; Xu, Ming Ya ; Wang, Everett ; Salamon, Péter ; Éber, Nándor ; Buka, A. / Tunable Optical Grating Based on the Flexoelectric Effect in a Bent-Core Nematic Liquid Crystal. In: Physical Review Applied. 2017 ; Vol. 7, No. 6.
@article{5c7908781a524fbf9ece5100eccdd886,
title = "Tunable Optical Grating Based on the Flexoelectric Effect in a Bent-Core Nematic Liquid Crystal",
abstract = "Optical gratings are created by flexoelectric domains in a bent-core nematic liquid crystal. A unique feature of this structure is that its wavelength can be controlled by the amplitude of the applied voltage, as demonstrated by polarizing microscopy and light diffraction techniques. In order to understand the reaction of the system to the voltage change, the dynamics of the switching process is studied via digital processing of recorded image sequences. It is shown that the characteristics and the switching mechanisms are different if the lower voltage level is below or above the threshold of pattern onset. In both cases, the response to increasing voltage levels is much slower than the response to decreasing voltage levels.",
author = "Ying Xiang and Jing, {Hong Zhen} and Zhang, {Zhi Dong} and Ye, {Wen Jiang} and Xu, {Ming Ya} and Everett Wang and P{\'e}ter Salamon and N{\'a}ndor {\'E}ber and A. Buka",
year = "2017",
month = "6",
day = "30",
doi = "10.1103/PhysRevApplied.7.064032",
language = "English",
volume = "7",
journal = "Physical Review Applied",
issn = "2331-7019",
publisher = "American Physical Society",
number = "6",

}

TY - JOUR

T1 - Tunable Optical Grating Based on the Flexoelectric Effect in a Bent-Core Nematic Liquid Crystal

AU - Xiang, Ying

AU - Jing, Hong Zhen

AU - Zhang, Zhi Dong

AU - Ye, Wen Jiang

AU - Xu, Ming Ya

AU - Wang, Everett

AU - Salamon, Péter

AU - Éber, Nándor

AU - Buka, A.

PY - 2017/6/30

Y1 - 2017/6/30

N2 - Optical gratings are created by flexoelectric domains in a bent-core nematic liquid crystal. A unique feature of this structure is that its wavelength can be controlled by the amplitude of the applied voltage, as demonstrated by polarizing microscopy and light diffraction techniques. In order to understand the reaction of the system to the voltage change, the dynamics of the switching process is studied via digital processing of recorded image sequences. It is shown that the characteristics and the switching mechanisms are different if the lower voltage level is below or above the threshold of pattern onset. In both cases, the response to increasing voltage levels is much slower than the response to decreasing voltage levels.

AB - Optical gratings are created by flexoelectric domains in a bent-core nematic liquid crystal. A unique feature of this structure is that its wavelength can be controlled by the amplitude of the applied voltage, as demonstrated by polarizing microscopy and light diffraction techniques. In order to understand the reaction of the system to the voltage change, the dynamics of the switching process is studied via digital processing of recorded image sequences. It is shown that the characteristics and the switching mechanisms are different if the lower voltage level is below or above the threshold of pattern onset. In both cases, the response to increasing voltage levels is much slower than the response to decreasing voltage levels.

UR - http://www.scopus.com/inward/record.url?scp=85021698450&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021698450&partnerID=8YFLogxK

U2 - 10.1103/PhysRevApplied.7.064032

DO - 10.1103/PhysRevApplied.7.064032

M3 - Article

VL - 7

JO - Physical Review Applied

JF - Physical Review Applied

SN - 2331-7019

IS - 6

M1 - 064032

ER -