Fluorescence and Raman spectroscopy

  • Thread starter wakko101
  • Start date
  • #1
68
0
I'm currently working on a lab that is exploring the Raman effect. One of the suggested exercises was to record the raman spectrum (from a mercury lamp through CCl4) around the rayleigh peaks at 435.8 nm and 404.7 nm. For the former, my results were fairly consistent with what I expected in that the frequency shifts were mostly on the ball. However, in the latter wavelength, 404.7, not only do my frequency shifts fall off the mark, but I only see stokes lines and no anti-stokes lines. My thoughts were that this might be due to the interference of fluorescence, but I'm not too familiar with this phenomenon.

Does anyone have any ideas as to why I am getting the results that I have? Any help would be most appreciated.

Cheers,
W. =)
 

Answers and Replies

  • #2
Claude Bile
Science Advisor
1,471
19
Fluorescence typically means no measurement at all, since it is so much stronger than the Raman signal.

Are your Stokes lines actually cosmic ray peaks?

Claude.
 

Related Threads on Fluorescence and Raman spectroscopy

  • Last Post
Replies
7
Views
7K
  • Last Post
Replies
2
Views
3K
Replies
2
Views
2K
  • Last Post
Replies
7
Views
2K
Replies
4
Views
8K
  • Last Post
Replies
8
Views
5K
Replies
0
Views
2K
  • Last Post
Replies
1
Views
3K
Replies
3
Views
857
  • Last Post
Replies
1
Views
4K
Top