Optical properties and stable,broadly tunable cw laser operation of new FA-type centers in Tl+-doped alkali halides |
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| Authors: | W Gellermann F L▵y CR Pollock |
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| Institution: | Physics Department, University of Utah, Salt Lake City, Utah 84112, USA;National Bureau of Standard, Boulder, Colorado 80302, USA |
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| Abstract: | A new group of complex color centers with FA-type properties, involving simple center production and high thermal and optical stabilities, has been found in six Tl+-doped alkali halides: NaCl, KCl, RbCl, KBr, RbBr and RbI. In its first tested examples, KCl and KBr, broadly tunable cw laser operation over the 1.4 to 1.7 μm range has been obtained, with output powers in the 100 mW range. In contrast to already existing F+2 and F+2-like centers, operating in the same wavelength range, the new FA(Tl+) lasers are optically stable and do not show any bleaching effects under laser operation. |
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