Polymeric chiral sculptured thin films (STFs) can act as lasers in the so-called Bragg regime, if doped with appropriate dyes. We propose a piezoelectric control mechanism to tune such lasers. The negative piezoelectric effect in a piezoelectric layer deposited on a polymeric chiral STF laser will shift the Bragg regime but not significantly its bandwidth. The possibility of steerability, in addition to tunability, is also indicated by our theoretical results.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering