Direct Visualization of Molecularly Thin Lubricant Films Using Low-Coherence Phase-Shifting Interferometry

Author

Zhang, H. ; Banno, T. ; Mitsuya, Y. ; Fukuzawa, K.

fYear

2006

fDate

Nov. 29 2006-Dec. 1 2006

Firstpage

1

Lastpage

2

Abstract

We have developed a method utilizing low-coherence phase-shifting interferometry for directly visualizing molecularly thin lubricant films coated on diamond-like carbon surfaces. By introducing a high-precision feedback controlling phase-shifting system and an image subtraction technique, the method was improved to be capable of providing real-time three-dimensional measurements with a thickness resolution of sub-nanometer and a spatial resolution of several micrometers

Keywords

diamond-like carbon; disc drives; hard discs; lubricants; magnetic heads; phase shifting interferometry; thickness measurement; thin films; diamond-like carbon surface; direct visualization; feedback control; hard disc drive; head-disc interface; image subtraction technique; low-coherence phase-shifting interferometry; molecularly thin lubricant films; spatial resolution; thickness measurement; Adaptive control; Diamond-like carbon; Lubricants; Phase measurement; Phase shifting interferometry; Real time systems; Spatial resolution; Subtraction techniques; Thickness measurement; Visualization; Head-disk interface; Low-coherence phase-shifting interferometry; Lubricant film; Three-dimensional measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Asia-Pacific Magnetic Recording Conference, 2006

Conference_Location

Singapore

Print_ISBN

1-4244-0863-6

Type

conf

DOI

10.1109/APMRC.2006.365896

Filename

4215281