We report observation of the photorefractive effect in functionalized polymer-dispersed liquid crystals. The photoconductive properties are provided by the polymer matrix, and the field-dependent refractive-index changes are generated by the dispersed nematic liquid-crystal droplets. A high diffraction efficiency (8%) and a high refractive-index modulation amplitude (Δn = 2 × 10-3) are obtained in 53-μm-thick samples with an applied field of 22 V/μm.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics