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Proceedings Paper

Pulsed laser deposition of Pr3+- doped chalcogenide thin films for optical applications
Author(s): A. P. Caricato; Gilberto Leggieri; Maurizio Martino; Vincenzo Resta; T. Tunno; Francesco Prudenzano; Animesh Jha
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Paper Abstract

Thin films of Praseodymium-doped chalcogenide glasses [GeS2-Ga2S3-CsI] were prepared by pulsed laser deposition (PLD) technique. The targets were ablated using XeCl (308 nm) and KrF (248 nm) excimer lasers. The films were deposited on microscope glass slides, SiO2 plates and lithium niobate (LiNbO3) substrates at room temperature and at 300 °C. Morphological, compositional and structural characteristics of deposited films were investigated by different techniques. (Rutherford backscattering spectrometry, scanning electron microscopy and x-ray diffraction). Optical transmission of films and target, at normal incidence, were recorded in the 200-3500 nm spectral region. The optical constants (refractive index n and extinction coefficient k) vs wavelength, as well as the film thickness, were calculated from these spectra with the aid of a computer code. The presence of praseodymium in the doped chalcogenide thin film was analysed by exciting the electrons to the 1G4 level and collecting the photoluminescence spectrum in the 1.335 µm region. The waveguiding properties of the deposited films were investigated by the prism coupling technique (m-lines spectroscopy).

Paper Details

Date Published: 2 September 2003
PDF: 12 pages
Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); doi: 10.1117/12.515621
Show Author Affiliations
A. P. Caricato, Univ. degli Studi di Lecce, INFM (Italy)
Gilberto Leggieri, Univ. degli Studi di Lecce, INFM (Italy)
Maurizio Martino, Univ. degli Studi di Lecce, INFM (Italy)
Vincenzo Resta, Univ. degli Studi di Lecce, INFM (Italy)
T. Tunno, Univ. degli Studi di Lecce, INFM (Italy)
Francesco Prudenzano, Politecnico di Bari (Italy)
Animesh Jha, Univ. of Leeds (United Kingdom)


Published in SPIE Proceedings Vol. 5121:
Laser Processing of Advanced Materials and Laser Microtechnologies
Friedrich H. Dausinger; Vitali I. Konov; Vladimir Yu. Baranov; Vladislav Ya. Panchenko, Editor(s)

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