Abstract
Electro-optical effects in liquid crystals (LCs) have been widely utilized in many optical components and photonic devices, thanks to the anisotropic media that can be easily manipulated by an electric field to modulate the light. In general, dielectric heating in LC applications is negligible because their orientational dielectric relaxations occur at high frequencies. Here we focus on a dual-frequency LC characterized by its much lower relaxation frequency. The fieldinduced heat strongly affects the LC ordering and optical properties. The electrothermo-optical effect reveals an unusual behavior compared with the well-known electro-optical effect in regular LCs. Based on the electrothermo-optical effect, some applications such as optical modulators or tunable optical shutters are demonstrated.
| Original language | English |
|---|---|
| Title of host publication | Emerging Liquid Crystal Technologies XII 2017 |
| Publisher | SPIE |
| Volume | 10125 |
| ISBN (Electronic) | 9781510606913 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
| Externally published | Yes |
| Event | 2017 Emerging Liquid Crystal Technologies XII Conference, ELCT 2017 - San Francisco, United States Duration: Jan 31 2017 → Feb 2 2017 |
Conference
| Conference | 2017 Emerging Liquid Crystal Technologies XII Conference, ELCT 2017 |
|---|---|
| Country/Territory | United States |
| City | San Francisco |
| Period | 1/31/17 → 2/2/17 |
Keywords
- cholesteric liquid crystals
- dielectric heating effect
- photonic devices
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering