A study of electrical and optical properties of sputtered SnO2WO3 thin films AIP Conf.
Poling dynamics and investigation into the behavior of trapped charge in poled polymer films for nonlinear optical applicationsPolyvinylidene fluoride ͑PVDF͒ films suitable for infrared to visible image conversion at the wavelength of 10.6 m are investigated. Birefringent PVDF films are simultaneously exposed to infrared and visible radiations and the variation of the transmitted intensity at 633 nm is measured as a function of the incident infrared intensity. The possibility of using PVDF films as infrared to visible image converter material is demonstrated.
A search for recording media suitable for holography at wavelengths comparable to the 10.6 microm of a CO(2) laser has led to the successful use of Saran Wrap plastic films and of thick acrylic plates. Holographic phase recording has been made with a 1-W single mode cw CO(2) laser yielding incident intensities up to 3.5 W/cm(2). Holographic reconstruction at a wavelength of 632.8 nm has given a diffraction efficiency up to 20%. At a wavelength of 10.6 microm, reconstruction by reflection on the silver-coated surface of an acrylic plate had a diffraction efficiency of 0.5%. It was observed that the recording is less linear on acrylic plates than on Saran Wrap films.
We analysed the diffraction properties of phase relief gratings with conic and quasiconic section profiles and showed their interesting properties as efficient multiple beam splitters. Optimization of their characteristics was studied for seven and thirteen beams. We compared theoretical calculations with experimental results using quasiconic section profile gratings produced on photoresist.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.