title: Dynamical optical microelements on dye-sensitized gels.
abstract: We discuss the optical recording and relaxation of low spatial frequency gratings and negative microlenses by a dyed polyacrylamide gel. An analysis of the grating diffraction efficiency and the focal distance of microlenses is shown. A study of the evolution of the surface modulation of both types of elements with an interference microscope is also included.
authors: Centro de Investigaciones en Optica, Apartado Postal 1-948, 37000 Leon, Gto, Mexico.
authors: R A
authors: RA
authors: Duarte-Quiroga
authors: S
authors: S
authors: Calixto