Scherschener Elizabeth, Perciante César D, Dalchiele Enrique A, Frins Erna M, Korn Matthias, Ferrari José A
Facultad de Ingeniería y Tecnologías, UCUDAL, Montevideo, Uruguay.
Appl Opt. 2006 May 20;45(15):3482-8. doi: 10.1364/ao.45.003482.
We present a novel electric-field and voltage sensor based on the electro-optical properties of polymer-dispersed liquid-crystals (PDLCs). In principle, the transmittance of PDLCs is a nonlinear function of the applied electrical field. To measure an AC field we superposed to it a known DC field. This allowed us to achieve linearization of the PDLC response and to measure transmittance changes independently of the light-intensity level variations. Validation experiments are presented.
