Scheme of Time-Resolved Laser-Induced Fluorescence Spectroscopy

• Nd:YAG: Pulse laser with second harmonic generation
• OPO/FDO: Tunable solid state laser, normally not used for TRLFS
• OPO-Controller
• FHG: Fourth Harmonic Generator; Output < 35 mJ @ 266 nm; possible attenuation not shown
• Cuvette : rectangular to the laser pulse fiber optic input for collection of the transmitted fluorescence light
• Spectrograph : 500 nm grating spectrograph with three changable gratings, resolution 0.6 nm; 0.1 nm and 0.06 nm per photodiode
• Intensified diodearray : Coupled photon amplifier / diode array (1024 diodes)
• Fast pulse generator : switch for the coupled photon amplifier, Gate width 5 ns to 2 ms
• Controller diode array : interface for readout of the photodiodes
• Delay generator : device to change the relative time between application of the laser pulse to the sample and switch on the coupled photon amplifier; delay time 1 ns to 99 ms
• PC : control of the spectrometer and data handling

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