Abstract
We provide a critical account of the dynamics of laser induced refractive index changing mechanisms in nematic liquid crystals which may be useful for all-optical switching and modulation applications in the visible as well as the Terahertz and long-wavelength regime. In particular, the magnitude and response times of optical Kerr effects associated with director axis reorientation, thermal and order parameter changes, coupled flow-reorientation effects and individual molecular electronic responses are thoroughly investigated and documented, along with exemplary experimental demonstrations. Emphases are placed on identifying parameter sets that will enable all-optical switching with much faster response times compared to their conventional electro-optics counterparts.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 37-56 |
| Number of pages | 20 |
| Journal | Progress in Electromagnetics Research |
| Volume | 147 |
| DOIs | |
| State | Published - Jan 1 2014 |
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All Science Journal Classification (ASJC) codes
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering
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Multiple time scales optical nonlinearities of liquid crystals for optical-terahertz-microwave applications. / Khoo, Iam Choon; Zhao, Shuo.
In: Progress in Electromagnetics Research, Vol. 147, 01.01.2014, p. 37-56.Research output: Contribution to journal › Article
TY - JOUR
T1 - Multiple time scales optical nonlinearities of liquid crystals for optical-terahertz-microwave applications
AU - Khoo, Iam Choon
AU - Zhao, Shuo
PY - 2014/1/1
Y1 - 2014/1/1
N2 - We provide a critical account of the dynamics of laser induced refractive index changing mechanisms in nematic liquid crystals which may be useful for all-optical switching and modulation applications in the visible as well as the Terahertz and long-wavelength regime. In particular, the magnitude and response times of optical Kerr effects associated with director axis reorientation, thermal and order parameter changes, coupled flow-reorientation effects and individual molecular electronic responses are thoroughly investigated and documented, along with exemplary experimental demonstrations. Emphases are placed on identifying parameter sets that will enable all-optical switching with much faster response times compared to their conventional electro-optics counterparts.
AB - We provide a critical account of the dynamics of laser induced refractive index changing mechanisms in nematic liquid crystals which may be useful for all-optical switching and modulation applications in the visible as well as the Terahertz and long-wavelength regime. In particular, the magnitude and response times of optical Kerr effects associated with director axis reorientation, thermal and order parameter changes, coupled flow-reorientation effects and individual molecular electronic responses are thoroughly investigated and documented, along with exemplary experimental demonstrations. Emphases are placed on identifying parameter sets that will enable all-optical switching with much faster response times compared to their conventional electro-optics counterparts.
UR - http://www.scopus.com/inward/record.url?scp=84901291508&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901291508&partnerID=8YFLogxK
U2 - 10.2528/PIER14032301
DO - 10.2528/PIER14032301
M3 - Article
AN - SCOPUS:84901291508
VL - 147
SP - 37
EP - 56
JO - Progress in Electromagnetics Research
JF - Progress in Electromagnetics Research
SN - 1070-4698
ER -