Abstract :
By combining a Dilor XY Raman spectrograph with a homemade scanning near-field optical microscope, we studied the near-field Raman spectrum of a diamond film prepared by hot filament chemical vapor deposition. Several quite different near-field Raman spectra were observed in different positions of a diamond film. The results were compared with micro-Raman spectra at the same positions. We found the top layer of the film gave more contribution to the near-field Raman spectra.
