5. Spectral Positions and Full Width at Half Maximum (FWHM) Values for the Bridging Oxygen (BO)-ν_s(POP) and Non-Bridging Oxygen (NBO)-ν_s(PO₂ ^–) Raman Bands Obtained for the Nd and 1-9SnNd Glasses.

	BO-νs(POP) band		NBO-νs(PO2 –) band
glass	peak (cm–1)	fwhm (cm–1)	peak (cm–1)	fwhm (cm–1)
Nd	686	60	1160	31
1SnNd	687	62	1159	33
3SnNd	687	61	1159	33
5SnNd	687	62	1159	32
7SnNd	688	63	1158	33
9SnNd	688	63	1158	36