"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Spectroscopic characterization of Sm3+ ions in PVA film

A. K. ADIYODI1, P. V. JYOTHY1, T. F. TONEY1, GIJO JOSE1, N. V. UNNIKRISHNAN1,*

Affiliation

  1. School of Pure &Applied Physics, Mahatma Gandhi University, Kottayam-686560, India

Abstract

Samarium doped Polyvinyl Alcohol (PVA) films were prepared and the optical properties of the films were investigated. By applying Judd-Ofelt theory the Ω parameters were obtained from the absorption spectrum. Various radiative parameters like transition probability for each level (AJ), total transition probability (AT), branching ratio (βR), radiative lifetime (τR) and absorption cross section (σA) were calculated. The theoretically obtained branching ratio and integrated absorption cross section are found to be greater for the transition 4G7/2->6H11/2. The emission spectra obtained at 595nm supports the theoretical results with high-stimulated emission cross-section (σE) and high optical gain.

Keywords

Rare earth, Samarium, Polyvinyl alcohol, Judd-Ofelt Parameters.

Citation

A. K. ADIYODI, P. V. JYOTHY, T. F. TONEY, GIJO JOSE, N. V. UNNIKRISHNAN, Spectroscopic characterization of Sm3+ ions in PVA film, Optoelectronics and Advanced Materials - Rapid Communications, 1, 6, June 2007, pp.281-286 (2007).

Submitted at: March 19, 2007

Accepted at: April 25, 2007