J. Koetke

Infrared excited-state absorption and stimulated-emission cross sections of Er3+-doped crystals

J. Koetke, G. Hüber · Applied Physics B · 1995 · 195 citations

Excited State Property, Engineering, Physics +10

Spectroscopy and green upconversion laser emission of Er3+-doped crystals at room temperature

T. Danger, J. Koetke, R. Brede et al. · Journal of Applied Physics · 1994 · 114 citations

Optical Materials, Engineering, Luminescent Glass +23

Green up-conversion laser emission in Er-doped crystals at room temperature

R. Brede, E. Heumann, J. Koetke et al. · Applied Physics Letters · 1993 · 89 citations

Crystals Laser Oscillation, Photonics, Optical Pumping +12

Spectroscopy and excited-state absorption of Ni2+-doped MgAl2O4

V. G. Shcherbitsky, V. P. Mikhailov, S. Kück et al. · Journal of Luminescence · 1997 · 86 citations

Inorganic Chemistry, Engineering, Natural Sciences +6

Quasi-continuous wave laser operation of Cr4+-doped Y2SiO5 at room temperature

J. Koetke, S. Kück, K. Petermann et al. · Optics Communications · 1993 · 56 citations

Optical Pumping, Photonics, Room Temperature +6