Non-mechanical and instantaneous phase-shifting technique for surface profiling

In this research work, a novel method is proposed to achieve non-contact surface profile measurement of ultra-flat surfaces. Resolution and accuracy in nanometer range is attained using non-mechanical and instantaneous phase shifting interferometry This work explores the applicability of instantane...

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Bibliographic Details
Main Author: Narayanswamy R. Sivakumar
Other Authors: Ngoi, Bryan Kok Ann
Format: Theses and Dissertations
Published: 2008
Subjects:
Online Access:http://hdl.handle.net/10356/6180
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Institution: Nanyang Technological University
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Summary:In this research work, a novel method is proposed to achieve non-contact surface profile measurement of ultra-flat surfaces. Resolution and accuracy in nanometer range is attained using non-mechanical and instantaneous phase shifting interferometry This work explores the applicability of instantaneous phase shifting technique to a novel common path optical layout.