12 Baylis Mews, Amyand Park Road, Twickenham, Middlesex, TW1 3HQ, United Kingdom.

Tel: +44 (0)20 8891 6600
Fax: +44 (0)20 8891 6599
Email: info@minersoc.org

Registered Charity No. 233706
VAT Reg. No. GB 238 7676 17

Photo Gallery

Click on a photo to enlarge and for more information.

Boltwoodite from South Africa
Images by David Green
Adamite from Putapa
Images by David Green

EMU Notes in Mineralogy - volume 12

Applications of Raman spectroscopy to Earth sciences and cultural heritage
(J. Dubessy, M.-C. Caumon and F. Rull, editors)  

Chapter 2:  Raman and fluorescence
Gerard Panczer, Dominique de Ligny, Clement Mendoza, Michael Gaft, Anne-Magali Seydoux-Guillaume and Xiaochun Wang

Philosophy established as principle of things:
Water or abyss, dry substance or atoms or earth, spirit or air, and in the fourth place, light;
Because these elements distinguished each other in the fact that they cannot exchange their nature but that all – here more, there less, here some of them only – meet and combine in a pleasant manner.

Giordano Bruno, De magia naturali, 1548–1600

The most serious problem associated with conventional Raman spectroscopy is fluorescence and this is known as the Raman Achilles’ heel. For minerals that exhibit even weak luminescence in the recorded spectral range, the Raman scattering will overlap partially or completely. The aim of this chapter is, on one and, to present the various ways to get rid of fluorescence or at least to diminish its effect on the Raman spectrum, and on the other hand, to turn to advantage this phenomenon which has provided precious but often underexploited data. Gated Raman spectroscopy is developed and illustrated by examples as are excitation monitoring and polarization effects. The peculiar case of self-irradiated mineral phases and their healing, studied by complementary Raman and luminescence spectroscopies, is considered. 

 Go to the table of contents for this book  

Go to the Mineralogical Society's online shop to buy a copy of the book from which this chapter is taken