Pr3+-doped chalcogenide glass (GeS2-Ga2S3-CsI) targets were ablated in vacuum (1x10-5 Pa) by XeCl laser pulses. The deposited films were plane, smooth, well adhesive to the substrate and with a composition close to the target one. The film thickness ranged from approximately 500 nm to approximately 2000 nm. The transmittance and reflectance of the deposited films were measured in the range 400 - 2500 nm. The transmittance resulted higher than 80% for wavelengths longer than 900 nm. The optical indices n and k were calculated from the experimental curve as a function of wavelength by means of a commercial computer code. The feasibility of waveguide amplifiers and laser made of Pr3+-doped chalcogenide glass was investigated by an implemented computer code.
Doped chalcogenide glass thin films deposited by pulsed laser ablation / Caricato, A. P.; Fernandez, M.; Leggieri, G.; Luches, A.; Martino, M.; Prudenzano, F.. - STAMPA. - 4829:(2003), pp. 123-124. (Intervento presentato al convegno 19th Congress of the International Commisssion for Optics Optics for the Quality of Life tenutosi a Firenze, Italy nel August 25-30, 2002) [10.1117/12.525836].
Doped chalcogenide glass thin films deposited by pulsed laser ablation
Prudenzano, F.
2003-01-01
Abstract
Pr3+-doped chalcogenide glass (GeS2-Ga2S3-CsI) targets were ablated in vacuum (1x10-5 Pa) by XeCl laser pulses. The deposited films were plane, smooth, well adhesive to the substrate and with a composition close to the target one. The film thickness ranged from approximately 500 nm to approximately 2000 nm. The transmittance and reflectance of the deposited films were measured in the range 400 - 2500 nm. The transmittance resulted higher than 80% for wavelengths longer than 900 nm. The optical indices n and k were calculated from the experimental curve as a function of wavelength by means of a commercial computer code. The feasibility of waveguide amplifiers and laser made of Pr3+-doped chalcogenide glass was investigated by an implemented computer code.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
