Head:Dr. Jorge O. Tocho Members:              • Dra. Lucía Scaffardi              •Dr. Daniel Schinca              •Dr. Gustavo Torchia

History

Work topics

• Laser spectroscopy, optics and photoacoustic of cristallyne solids of optoelectronic interest.
• Photophysics of alkaline halides doped with ions of rare earths.
• Photophysics of microstructured light guides generated by ultrashort pulse laser.
• Study of solid-state sensors  based on deposition of microlayers.
• Aplication of Integrated Optics.

The most relevant works

• Exited state Absorption in KCl: Eu.
• Studies on phase transitions in solids amorphous and polymers.
• Resolution of cristallyne sites in lithium niobate doped with chromium and zinc.
• Determination of quantum efficiency fluorescence in crystals doped with chromium.
• Characterization of light microguides in lithium niobate made with fs lasers.
• Study on the light guiding by 2D arrangement of microguides made with fs lasers.

Collaboration with other institutions and Research groups

• Servicio Láser, Dto de Física, Facultad de Ciencias Exactas, Universidad de Salamanca, España.
• Grupo Física de Materiales, Dto de Física, Universidad Autónoma de Madrid, España.
• Laboratorio de Materiales Cerámicos, FCEIyA, IFIR, Universidad Nacional de Rosario, Argentina.

Available equipament

• A Q-switch Neodymium laser, 10 ns, 750 mJ, with 2nd, 3rd and 4th harmonic generators.
• An Optical Parametric Generator OPO, 400 – 2500 nm.
• An Argon Laser, 5 W.
• A continuous wave dye laser.
• A spectrograph (25 cm focal distance).
• A multichanel.
• Spectrograph.
• A spectophotometer 200-1100 nm.
• A Fourier transform Infrared Spectrograph 1 – 15 µm.
• Photodiodes.
• Photomultipliers.
• A photon counter.
• A Boxcar amplifier.
• A lock-in amplifier.
• A digital oscilloscope 300 MHz.
• A CCD camera intensified with temporal gate.
• A cryostat for liquid nitrogen.

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