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Description of AMU Physics Department Facilities. Piko i femtosekundowe metody badań w e współczesnej fotofizyce i spektroskopii molekularnej Marian Szymański Instytut Fizyki, Uniwersytet im. Adama Mickiewicza, Poznań. AMU Physics Department TC-SPC. AMU Physics Department TC-SPC.
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Description of AMU Physics Department Facilities Piko i femtosekundowe metody badań we współczesnejfotofizyce i spektroskopii molekularnej Marian Szymański Instytut Fizyki, Uniwersytet im. Adama Mickiewicza, Poznań
Intensity, au Wavelength, nm A wide range of frequencies is generated with a short, intense pulse 775 nm, 150 fs pulse in sapphire crystal 400 nm 800 nm
1 ms 5 ms 5 ms I0(l) = sum of all five I(l) = sum of all five probe pulses probe pulses Measurement Principle ofFemtosecond Laser Pump Pulses (775, 390, or 258 nm) I0(l) DA(l) = log10 I(l) chopper blocks pump pulses DA(l) Probe Pulses (White light) 0 t1, probe < t laser t2, probe t1, probe t laser t2, probe > t laser I(l)