A short wavelength R-θ scanning laser microscope and optical disc tester for the characterization of optical recording media

The design and applications of a novel, short wavelength, combined R- theta scanning laser microscope (SLM) and optical disc tester that is used for the imaging of recorded bit structures and the characterization of optical recording media is described. The instrument is optimised for magneto-optica...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on magnetics 1995-11, Vol.31 (6), p.3271-3273
Main Authors: Heyes, N A E, Wright, C D, Clegg, W W, Zhao, J
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The design and applications of a novel, short wavelength, combined R- theta scanning laser microscope (SLM) and optical disc tester that is used for the imaging of recorded bit structures and the characterization of optical recording media is described. The instrument is optimised for magneto-optical recording applications and provides images with sub-micron resolution. Imaging is achieved by focusing the light from an argon-ion laser (514nm or 488nm wavelength) to a diffraction limited spot on the surface of a rotating sample to generate the line scan, whilst moving the objective lens slowly in the radial direction to generate the frame scan.
ISSN:0018-9464
DOI:10.1109/20.490346