Laser polarization-assisted diffusion for modifying electromagnetic properties of metals

    Authors

    S. Y. Chen; O. Benafan; R. Vaidyanathan;A. Kar

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Opt. Lasers Eng.

    Keywords

    Electromagnetic property; Laser polarization; Magnetic field; Platinum; diffusion; Beam shaping; BASE; Optics

    Abstract

    Laser diffusion has previously been studied to incorporate dopants in semiconductors and to carburize steel for surface hardening without melting the substrate, among others. The optical and electromagnetic properties of materials can also be modified by this diffusion method to tailor the material response at different frequencies of the electromagnetic spectrum. Platinum atoms have been diffused into titanium and tantalum sheets by a laser chemical vapor diffusion method using a metallorganic compound of platinum and laser beams of different polarizations. Thermal decomposition of the precursor at the laser-heated spot on the surface of the substrate generates platinum atoms that diffuse into the substrate, producing laser-platinized samples. The transmittances of the samples are determined by measuring the strength of the transmitted magnetic field oscillating at 63.86 MHz. The laser-platinized samples produced by linearly polarized lasers exhibit higher transmittances than the samples obtained by using azimuthally polarized lasers. Published by Elsevier Ltd.

    Journal Title

    Optics and Lasers in Engineering

    Volume

    62

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    132

    Last Page

    138

    WOS Identifier

    WOS:000339696600016

    ISSN

    0143-8166

    Share

    COinS