Journal
OPTICS EXPRESS
Volume 18, Issue 8, Pages 7946-7954Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.007946
Keywords
-
Categories
Funding
- BMBF [03X5509]
- European Science Foundation
- Deutsche Forschungsgemeinschaft
- Emmy-Noether Group
Ask authors/readers for more resources
Microdisks made from GaAs with embedded InAs quantum dots are immersed in the liquid crystal 4-cyano-4'-pentylbiphenyl (5CB). The quantum dots serve as emitters feeding the optical modes of the photonic cavity. By changing temperature, the liquid crystal undergoes a phase transition from the isotropic to the nematic state, which can be used as an effective tuning mechanism of the photonic modes of the cavity. In the nematic state, the uniaxial electrical anisotropy of the liquid crystal molecules can be exploited for orienting the material in an electric field, thus externally controlling the birefringence of the material. Using this effect, an electric field induced tuning of the modes is achieved. Numerical simulations using the finite-differences time-domain (FDTD) technique employing an anisotropic dielectric medium allow to understand the alignment of the liquid crystal molecules on the surface of the microdisk resonator. (C) 2010 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available