Dear colleagues,
I am working at present with a Sirah dye laser doing high-resolution
spectroscopy. I am very concerned about wavelength calibration and do it
very carefully using optogalvanic spectroscopy and an etalon. I noticed that
the true wavelength around 640 nm deviates periodically by +- 0.03nm during
a nominally continuous wavelength scan. Has anybody had similar experiences?
Explanations?
Cheers,
Michael Hippler
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Dr Michael Hippler
Senior Lecturer in Physical Chemistry
Dept of Chemistry
University of Sheffield
Sheffield S3 7HF, United Kingdom
Tel.: +44 (0)114 222 9505
FAX: +44 (0)114 222 9346
E-Mail: [log in to unmask]
www.shef.ac.uk/chemistry/staff/profiles/hippler.html
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