News Updates Friday 22nd Mar 2019 :
  • Welcome to INPRESSCO, world's leading publishers, We have served more than 10000+ authors
  • Articles are invited in engineering, science, technology, management, industrial engg, biotechnology etc.
  • Paper submission last date of March/April 2019 is 15 March 2019, Submit online or at
  • Our journals are indexed in NAAS, University of Regensburg Germany, Google Scholar, Cross Ref etc.
  • DOI is given to all articles

Spectral Studies of Dy3+ Doped Heavy Metal Oxide Glasses

Author : P.Sree Ram Naik, Y.N.Ch.Ravi Babu, M. Kiran Kumar and A.Suresh Kumar

Pages : 3473-3479
Download PDF

Dy3+:PbO-Bi2O3-WO3-B2O3 glass systems have been developed using Melt quenching technique. Spectroscopic and Physical properties of these glass systems have been investigated. The nephalauxetic effects for all the glass systems have been computed. The physical properties such as density (d), molar volume (V), polaron radius (rp), refractive index (n), inter ionic distance (ri) have been evaluated. The Judd-Ofelt theory has been applied to the analysis of absorption spectra. The environment sensitive Ω2 parameter exhibits higher among the other Judd – Ofelt parameters indicate the asymmetry around the rare earth ions in all the glass systems. The radiative lifetimes (τR)for certain lasing transitions have been computed. Branching ratios (βr), absorption (σa) and emission cross sections (σe) for certain lasing transitions
have been reported. The visible luminescence spectra exhibit two intense bands around 480nm, 560nm due to 4F9/2- →6H15/2(Blue) and 4F9/2→ 6H13/2 (Yellow) transition of Dy3+. Yellow to blue luminescence ratio (Y/B) for all the glass systems indicate greater than unity.

Keywords: Dysprosium, HMO glasses, Optical materials, photoluminescence.

Article published in International Journal of Current Engineering and Technology, Vol.4, No.5 (Oct-2014)


Call for Papers
  1. IJCET- March/April 2019 Issue

    Submission Last Date
    22 March
  2. DOI is given to all articles
  3. Current Issue
  4. IJTT-March-2019
  5. IJAIE-March-2019
  6. IJCSB-March-2019
  • Inpressco Google Scholar
  • Inpressco Science Central
  • Inpressco Global impact factor
  • Inpressco aap

International Press corporation is licensed under a Creative Commons Attribution-Non Commercial NoDerivs 3.0 Unported License
©2010-2018 INPRESSCO® All Rights Reserved