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Femtosecond Transient Absorption Spectroscopy
Ultrafast spectroscopy applications span many areas of chemistry and physics, providing essential information on events that occur in the 1 fs to 100 ps timescale. These events are initiated by an ultrafast laser pulse (pump) and the subsequent photophysical and photochemical processes are interrogated by a second pulse (probe).
The CPA-2010 1 kHz Amplified Ti:Sapphire Laser System from Clark MXR is typically used to characterize singlet and triplet excited states, excited state energy transfer, inter- and intramolecular electron transfers, charge-transfer complexation and radical recombination in aqueous and nonaqueous solvents as well as in heterogeneous systems such as colloidal suspensions and thin films.
Excitation wavelength: 775, 387 and 258 nm
Pulse width 150 fs, 1 kHz, 1 mJ/pulse @ 775 nm
Detection Range: 420-750 nm (will be extended to IR)
Detection Limit: DOD ~0.0005
Delay Times.: Up to 1.6 ns (delay increments ≤ 10 fs )
Sample Cell: 1 or 2 mm cuvette (static or flow mode)
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