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Molybdenum thin films via pulsed laser deposition technique for first mirror application

Published online by Cambridge University Press:  25 September 2012

A.T.T. Mostako
Affiliation:
Laser and Photonics laboratory, Department of Physics, Indian Institute of Technology Guwahati, Guwahati, India
Alika Khare*
Affiliation:
Laser and Photonics laboratory, Department of Physics, Indian Institute of Technology Guwahati, Guwahati, India
*
Address correspondence and reprint requests to: Alika Khare, Department of physics, Indian Institute of Technology Guwahati, Guwahati-781039, India. E-mail: alika@iitg.ernet.in

Abstract

Mirror like Molybdenum thin films on SS substrate in vacuum (10−3 Pa) and in Helium environment has been achieved by Pulsed Laser Deposition (PLD) Technique. The PLD thin films of Molybdenum have been characterized by using X-ray Diffraction (XRD) pattern, Scanning Electron Microscope (SEM), Atomic Force Microscope (AFM) and Energy Dispersive X-ray (EDX). The specular reflectivity was recorded with Fourier Transform Infra-Red spectrometer and UV-Visible spectrometer. The optical quality of the thin films was tested via interferometric technique. At the optimum deposition parameters, the crystal orientation was in Mo(110) phase. The FIR-UV-Visible reflectivity of the mirror was found to be closed to that of the polished bulk Molybdenum and Stainless Substrate (SS) substrate.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2012

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