Abstract
In profilometric measurements, by scanning the sample twice with a fixed vertical offset, one can separate the signal that comes from surface heterogeneity from the topographic signal. Using differential confocal microscopy, a newly developed open-loop nanometer profilometric technique, we demonstrated this dual-scan method on composite samples and obtained 10-nm depth resolution. This technique can also be applied to other profilometric techniques such as atomic force microscopy and scanning tunneling microscopy.
© 1999 Optical Society of America
Full Article | PDF ArticleMore Like This
Chau-Hwang Lee, Hong-Yao Mong, and Wan-Chen Lin
Opt. Lett. 27(20) 1773-1775 (2002)
Chau-Hwang Lee, Hui-Yu Chiang, and Hong-Yao Mong
Opt. Lett. 28(19) 1772-1774 (2003)
P. M. Bridger and T. C. McGill
Opt. Lett. 24(15) 1005-1007 (1999)