Electrophysics of adaptive LC lens with modal control

摘要

Detailed analysis of electric voltage distribution and electric currents in adaptive liquid crystal (LC) based lenses is presented. Approximation of constant LC layer impedance is shown to be useful for physical insight. More generally, a computer simulation is developed, taking into account the voltage dependencies of the LC capacitance and conductance. Computer simulated phase shift distributions are in good agreement with experimental profiles produced via Zigo interferometer measurements. Also addressed is the influence of the lens's electrical parameters on its dynamics.