Optical multilayer films based on an amorphous fluoropolymer

Abstract

Articles you may be interested inStability of undoped hydrogenated amorphous silicon multilayer film grown with alternating substrate temperature Design and performance of a reflectometer to measure optical properties of multilayer optical thin films AIP Conf.Multilayered coatings were made by physical vapor deposition ͑PVD͒ of a perfluorinated amorphous polymer, Teflon AF2400, and with other optical materials. A high reflector for 1064 nm light was made with ZnS and AF2400. An all-organic 1064 nm reflector was made from AF2400 and polyethylene. Oxide ͑HfO 2 and SiO 2 ͒ compatibility with AF2400 was also tested. The multilayer morphologies were influenced by coating stress and unintentional temperature rises from the PVD process. Analysis by liquid nuclear magnetic resonance of the thin films showed slight compositional variations between the coating and starting materials of perfluorinated amorphous polymers.

Nonlinear optical polymer electrets current practice

“…For further details about the exciting new class of photorefractive polymer materials, the interested reader is referred to the recent review by Zhang et al [541. At the end of ths Section, two related material developments of interest to the electret community must be mentioned briefly. One is the proposed use of amorphous fluoropolymers, which may also exhibit good charge-storage capabilities (see the article by Kressmann, Sessler and Gunther in t h s Digest), for optical elements and passive [55,56] or active [57] waveguides. This new direction, whch is motivated by the much lower absorption of fluorinated polymers in the wavelength regions of practical interest (see Section 6.1), offers the attractive possibility of combining optical and space-charge electret functions in one and the same material.…”

Inhibiting P. fluorescens biofilms with fluoropolymer-embedded silver nanoparticles: an in-situ spectroscopic study

“…Among these, metal- and metal oxide-Teflon-like (CF x ) composites have risen high scientific and industrial interest due to their wide range of technological applications in fields such as optoelectronics 6 , photovoltaics 7 , 8 , medical devices 9 , anti-stain and water repellent coatings 10 , 11 , gas sensors 12 , 13 , nanoantimicrobials 14 , 15 . Nanostructured composites have been successfully fabricated employing technologies such as plasma deposition 16 , 17 , co-evaporation 18 , 19 , RF magnetron sputtering 20 – 22 , physical vapour deposition (PVD) 23 , hybrid sputtering-vapour methods 24 , 25 , vacuum gas-jet deposition 26 , and ion beam sputtering (IBS) 10 . The combination of Ag nanoantimicrobials and fluoropolymers is still a topic explored only by few research groups 6 , 8 , 10 , 11 .…”

Hot embossing of thick amorphous fluoropolymer for back end processing of infrared arrays

“…Some other applications include gate insulators for thin film transistors (TFTs), cladding for liquid core waveguides, thin film multilayer coatings with improved optical properties, and as a nonsticking layer to aid release between two wafers in an imprint a) Electronic mail: justin.k.markunas.civ@mail.mil lithography process. [6][7][8][9] The techniques developed in this investigation could thus be utilized for patterning amorphous fluoropolymer films in other fields. Several studies have also focused on plasma etching of these materials using high density plasmas composed of Ar/O 2 .…”