Efficient infrared quantum counter and excited-state absorption cross-section measurements in europium-doped calcium fluoride

Autor: Tian, Wenyan, Pandher, Ranjit S., Reddy, B. Rami
Zdroj: Journal of the Optical Society of America B: Optical Physics; November 2001, Vol. 18 Issue: 11 p1627-1631, 5p
Abstrakt: Upconversion signals in the wavelength region 407–550 nm were emitted from CaF_2:Eu^3+ under 578.7 (or 589.2-) nm dye-laser excitation. The intensities of the upconversion signals were enhanced 25× under double-resonance excitation by a 589.2-nm dye laser and a 703.6-nm Ti:sapphire laser. Excited-state absorption cross sections were estimated for some of the transitions.
Databáze: Supplemental Index