Novel vibronic laser sources in the near- and mid-infrared regions

01.01.2004 - 01.01.2006
Forschungsförderungsprojekt
This joint Italian-Austrian application relates to a proposed two year programme of research in the field of novel infrared vibronic lasers. Within the present project it is intended to grow and carry out spectroscopic and laser investigation of the completely new crystal of the colquiriite family, Cr3+:LiCaGAF6. This crystal should have reduced scatter losses with respect to other existing colquiriites, having a lower melting point which should lead to less volatility of GaF3 from the melt in comparison to that of AlF3 in LiCAF. The italian group has a long experience in investigation of the laser crystals. Moreover, a new facility for growing fluoride crystals has been developed there, and this group has developed a high-power cw Co:MgF2 laser, tunable in the range between 1.6 and 2.1 m; it is used both for spectroscopic studies and for pumping crystals. The italian group is responsible for the growth and the characterization of the crystals. The lasing experiments are carried out at the Vienna University, where a considerable amount of experience in colquiriite crystals and corresponding infrastructure have been accumulated. Another activity is the development of advanced mid-infrared ultra-short pulse sources, based on Cr2+-doped chalcogenide crystals, the new class of broadly tunable and efficient active media in the mid-infrared region. Recently, the extremely efficient and successful scientific collaboration between the Technical University of Vienna and Pisa University resulted in the demonstration of a high power, high efficient and broadly tunable Cr2+:ZnSe source, pumped by the Co:MgF2 laser developed at the University of Pisa. Another challenging task is to obtain for the first time cw laser operation from the alternative crystal to the chalcogenide crystal family, Cr2+:CdSe. Summarizing, within this project we intend to investigate two recently developed laser crystals in the mid-infrared region and to develope a new promising colquiriite crystal in the near-infrared region: ¿ ZnSe doped with Cr2+, operating around 2.5 m and Cr2+:CdSe, operating around 2.6 m; ¿ Cr3+:LiCaGAF6 , operating around 0.8 m wavelength region;

Personen

Projektleiter_in

Projektmitarbeiter_innen

Institut

Grant funds

  • OeAD-GmbH - Agentur für Bildung und Internationalisierung (National) Austrian Exchange Service (OeAD)

Schlagwörter

DeutschEnglisch
LaserLaser
InfrarotInfrared
Laser, durchstimmbarLaser, tunable
FemtsokundenimpulseUltrashort pulses

Externe Partner_innen

  • Scuola Normale Superiore Fax: 0039-050-22144333 E-mail: alberto.dilieto@sns.it

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