Title :
Direct Visualization of Molecularly Thin Lubricant Films Using Low-Coherence Phase-Shifting Interferometry
Author :
Zhang, H. ; Banno, T. ; Mitsuya, Y. ; Fukuzawa, K.
fDate :
Nov. 29 2006-Dec. 1 2006
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;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2006
Conference_Location :
Singapore
Print_ISBN :
1-4244-0863-6
DOI :
10.1109/APMRC.2006.365896
