infrared excitation
1.Strong green up-conversion emission was observed for the first time in europium and dysprosium co-doped strontium aluminate (SrAl 2O 4:Eu 2+,Dy 3+) phosphor under 980 nm infrared excitation at room temperature.
2.Using TEACO_2 laser as excitation source and GC as measuring instrument,we have stud-ied the infrared multiphoton dissociation of CF_2HCl on the added gases (He or H_2),and have inves-tigated the kinetic feature of IRMPD of CF_2HCl. Their result is further explained to some extent.
3.Under 980 nm excitation, we obtained five intense up-conversion luminescence bands in Er 3+-Yb 3+-Tm 3+co-doped CdF 2:PbF 2-based glass as follows: infrared(800 nm), red(645 nm), green (545 nm and 525 nm), blue(480 nm ) and violet(407 nm) up-conversion luminescence.
