[OPTICAL REVIEW Vol. 13, No. 2 (2006) 101-103]
© 2006 The Optical Society of Japan
The Physical Properties of P2O5–Sm2O3–MnO2 Glass System
M. R. SAHAR*, B. ASTUTI and M. S. ROHANI
Advanced Optical Material Research Group, Faculty of Sciences, Universiti Teknologi Malaysia, Skudai, Johor DT 81310, Malaysia
(Received September 9, 2005; Accepted January 20, 2006)
Phosphate glasses doped with samarium oxide have been made using the melt quenching technique. The density of the glass was determined using the Archimedes method while the Vickers hardness was measured using a micro-vicker tester. Both density and hardness have shown an increasing trend with the addition of a small amount of Sm2O3. The refractive index was characterized using UV-visible spectroscopy and the Sellmeier fitting equation was used to verify the result. The refractive index was found to vary from 1.972 to 1.807 depending on the wavelength and well agreed with the fitting curve.
Key words: melt quenching technique, phosphate glass, density, hardness, refractive index
*E-mail address: m-rahim@dfiz2.fs.utm.my