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Dr.P Radhakrishnan >
Please use this identifier to cite or link to this item:
http://purl.org/purl/1815
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| Title: | Raman spectra of polymethyl methacrylate optical fibres excited by a 532 nm diode pumped solid state laser |
| Authors: | Radhakrishnan, P
Girijavallabhan, C P
Nampoori, V P N
Thomas, K J
Sheeba, M |
| Keywords: | Raman spectra
polymethyl methacrylate
optical fibres
diode
solid state laser
polymer optical fibre
scattering cross section
gain coefficient |
| Issue Date: | 27-Mar-2008 |
| Publisher: | Journal of Optics A: Pure and Applied Optics |
| Citation: | International School of Photonics, Cochin University of Science and Technology |
| Abstract: | Polymethyl methacrylate (PMMA) optical fibres are fabricated by a preform drawing process.
The Raman spectra of PMMA fibres are recorded using a diode pumped solid state laser
emitting at 532 nm and a CCD-spectrograph in the 400–3800 cm−1 range. The variation of the
Raman intensity with the length of the optical fibre is studied. Investigations are carried out on
the variation of FWHM of the Raman peak at 2957 cm−1 with the length of the optical fibre and
pump power. The differential scattering cross section and gain coefficient of the Raman peak at
2957 cm−1 in PMMA are calculated in relation to that of toluene. |
| URI: | http://dyuthi.cusat.ac.in/purl/1815 |
| Appears in Collections: | Dr.P Radhakrishnan
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