ISSN:
1432-0630
Keywords:
42.55.Rz
;
42.70
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract Pump-induced excited-state absorption (ESA) in the whole range of pump wavelengths prevents effective laser action of Ti:YAlO3. The time-resolved measurement of this absorption allows the separation of excited-state absorption and losses due to transient colour centres. The influence of polarization on the ESA of Ti:YAlO3 is only weak, as it is expected for a charge-transfer transition. No significant stimulated emission (SE) could be measured in the whole fluorescence region. In comparison, Ti:Al2O3 shows a broad SE spectrum corresponding to the tuning range of this laser material. The strongest SE was measured for E‖c, which is the preferred polarization for laser action of Ti:Al2O3. Below 350 nm the long-wavelength edge of an ESA band was found.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00332282
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