LASER FLASH PHOTOLYSIS (YAG Surelite II-10) The INCT laser flash photolysis system is based on the Nd:YAG SURLITE II laser (Continuum). The time duration of a laser pulse is 6 ns (FWHM). Currently, the system is capable of operating on the four lines: basic line 1064 nm with energy 670 mJ and three harmonic generated lines 532, 355 and 266nm with energies 315, 101, 83 mJ, respectively. Low noise, high power Hamamatsu L2273 lamp is used as a source of analyzing light. Wavelength selection is performed by SpectraPro 275 monochromator (Acton Reserch Corporation, 200 1000 nm) or bandpass filters.
 | YAG Surelite II-10 Laser | Optical signal is monitored by photomultiplier (Hamamatsu, R-955), silicon diode (PDA10A ,ThorLabs), or InGaAs diode (PDA10CF , ThorLabs) depending on needs and spectral range of measurement. LeCroy WR6051A digitizer is used for data acquisition. System is fully controlled by written in Delphi TSFF software. The system is equipped with temperature controlled cell-holder Flash 300 (Probis-Scientific).
If necessary, small sample volume, flowing system based on syringe pump (KDS-270-CE, KD Scientific) can be used. Optionally flash laser photolysis at INCT can work with iCCD camera commonly used in our pulse radiolysis facility. |