Optical quality diamond thin films have been deposited using a hot filament
chemical vapor deposition (HFCVD) system. The diamond films were character
ized by Raman shift spectra, X-ray diffraction spectra, scanning electron m
icroscopy. Diamond near infrared antireflective filter window and diamond X
-ray window have been fabricated using above technology. The diamond near i
nfrared antireflective filter windows have been successfully used in on-lin
e monitoring at Shanghai Baosteel Works. It has produced annual benefit as
much as 2.4 million RMB Yuan. (C) 2000 Elsevier Science S.A. All rights res
erved.