Abstract
We present the results of experimental and theoretical studies that demonstrate the feasibility of realizing electro-optical switching, frequency filtering and negative index of refraction. In liquid crystal infiltrated TiO 2 inverse opal 3-D photonic crystals, we observed a sizeable electrical tuning of the Bragg reflection peak. In frequency selective structures with a liquid crystal over-layer, the tuning range can be as wide as 380 nm, operational throughout the entire visible - far infrared spectra range. Furthermore, some of the structures can be designed to exhibit a negative index of refraction property over a predetermined frequency interval.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 309-319 |
| Number of pages | 11 |
| Journal | Molecular crystals and liquid crystals |
| Volume | 453 |
| Issue number | 1 |
| DOIs | |
| State | Published - Sep 1 2006 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Materials Science
- Condensed Matter Physics