Open AccessLaser activity at 118, 107, and 097??m in the low-phonon-energy hosts KPb_2Br_5 and RbPb_2Br_5 doped with Nd^3+
Author(s) -
K. Rademaker,
E. Heumann,
G. Hüber,
Stephen A. Payne,
William F. Krupke,
L. I. Isaenko,
A. Bürger
Publication year - 2005
Publication title -
optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.30.000729
Subject(s) - laser , materials science , lasing threshold , neodymium , doping , wavelength , optics , photon upconversion , optoelectronics , rubidium , potassium bromide , phonon , potassium , chemistry , physics , inorganic chemistry , metallurgy , condensed matter physics
For the first time to the authors' knowledge, laser activity has been achieved in low-phonon-energy, moisture-resistant bromide host crystals, neodymium-doped potassium lead bromide (Nd3+:KPb2Br5) and rubidium lead bromide (Nd3+:RbPb2Br5; RPB). Laser activity at 1.07 microm was observed for both crystalline materials. Laser operation at the new wavelengths 1.18 and 0.97 microm that resulted from the 4F5/2 + 2H9/2 - 4IJ transitions (J=13/2 and J=11/2) in Nd:RPB was achieved in a solid-state laser material. Rare-earth-doped MPb2Br5 (M=K, Rb) is a promising candidate for long-wavelength infrared applications because of its low phonon frequencies and other favorable features. In principle, Nd3+:MPb2Br5 has high potential for laser operation at new wavelengths as well as for the achievement of short-wavelength lasing as a result of upconversion.
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