About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Blue continuously pumped upconversion lasing in Tm:YLiF4
Abstract
Blue upconversion laser operation in Tm at 450.2 nm on the 1D2→3F4 transition, and at 483.0 nm on the 1G4→3H6 transition has been achieved using cw pumping with Ti Sapphire and DCM dye lasers. The 450.2-nm laser was excited by sequential two-photon absorption with 784.5-nm and 648-nm laser sources and was operated at temperatures up to 70 K. The 483.0-nm laser was pumped with a single red-dye laser using a wavelength resonant only with absorption from a metastable intermediate state but not with absorption from the ground state. With this avalanche absorption pumping scheme, 483.0-nm laser emission was observed up to 160 K.
Related
Conference paper
Violet CW neodymium upconversion laser.
Conference paper
Upconversion laser action at 469.7 and 560.6 nm in Er:YLiF4
Conference paper