Molecular Analysis Facilty Tool

Ultrafast transient absorption and photoluminescence spectroscopy

Make/Model: Coherent Libra, Ultrafast Helios/EOS
Location: MolES G21
Femtosecond laser with transient absorption and streak camera photoluminescence detection. The excitation source for both Transient absorption and photoluminescence experiments is the Coherent Libra amplified Ti:Sapphire laser, which generates 50 fs pulses of 800 nm light at 1 kHz. Using one of two Optical Parametric Amplifiers (OPAs), this light can be converted to any wavelength between 350 nm and 2400 nm, while retaining a pulse-width of less than 100 fs. Transient absorption experiments are performed using the Helios and EOS units from Ultrafast Systems, while time-resolved photoluminescence experiments are performed using a streak camera from Hamamatsu.
  • Instrument Details

Key Capabilities

  • 800 nm, 50 fs, 1 kHz fundamental laser source
  • TA detection from ~300 - 2400 nm with time scale from ~100 fs - ms
  • PL detection from 300 - 950 nm
  • OPA range from 350 - 2600 nm


Compatible Samples

  • Compatible with both thin film and liquid phase samples
  • Sample must allow transmission of probe light