Three-photon upconversion in Er3+ doped Ca3Al2Ge3O12

Infrared-Pumped Visible Laser

L. F. Johnson, H. J. Guggenheim · Applied Physics Letters · 1971 · 314 citations

Natural Sciences, Physics, Optics +16

Ion-pair upconversion pumped laser emission in Er3+ ions in YAG, YLF, SrF2, and CaF2 crystals

S. A. Pollack, David B. Chang · Journal of Applied Physics · 1988 · 183 citations

Natural Sciences, Chemistry, Radiation Detection +15

Infrared to visible upconversion in Er3+-doped-lead-germanate glass: Effects of Er3+ ion concentration

Zhejun Pan, S. H. Morgan, A. L. Loper et al. · Journal of Applied Physics · 1995 · 170 citations

Natural Sciences, Chemistry, Materials Science +17

Room-temperature upconversion fiber laser tunable in the red, orange, green, and blue spectral regions

Ping Xie, T. R. Gosnell · Optics Letters · 1995 · 149 citations

Natural Sciences, Materials Engineering, Materials Science +14

Upconversion Lasers

W. Lenth, R. M. Macfarlane · Optics and Photonics News · 1992 · 108 citations

Engineering, Electrical Engineering, Physics +17