Nonlinear common-path interferometer: an image processor.
A single-lens optical setup with a nonlinear medium placed in its geometrical focal plane is used to contrast a phase disturbance. This setup blends the robustness of phase-contrast methods with an optical nonlinear intensity-dependent medium and the usefulness of traditional interferometric techniques. We show that the ratio of the total illumination area to the phase-object area determines an adequate phase-disturbance contrast.
Treviño-Palacios
Carlos Gerardo
CG
Instituto Nacional de Astrofísica, Optica y Electrónica, Apdo. Postal 51 y 216, Puebla, Puebla, 72000 Mexico. carlost@inaoep.mx
Iturbe-Castillo
Marcelo David
MD
Sánchez-de-la-Llave
David
D
Ramos-García
Ruben
R
Olivos-Pérez
Luis Ignacio
LI