Title

Laser Polarization-Assisted Diffusion For Modifying Electromagnetic Properties Of Metals

Keywords

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

Abstract

Abstarct 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.

Publication Date

1-1-2014

Publication Title

Optics and Lasers in Engineering

Volume

62

Number of Pages

132-138

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.optlaseng.2014.05.012

Socpus ID

84903152249 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84903152249

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