Ultrafast Spectroscopy Facility
Contact: Charles Black
The Ultrafast Spectroscopy facility houses a state-of-the-art high power kilohertz femtosecond regenerative amplifier combined
with and optical parametric amplifier that allows generation of sub 100 femtosecond pulses utilized in pump-probe experiments. This
system is coupled to a user friendly transient absorption spectrometer, providing users with a broad range of excitation and detection
wavelengths for kinetic measurements in liquids and solids.
Capabilities
- CCD-based Transient Absorption spectroscopy covering VIS and NIR spectral regions over a time window of 3.3 ns. Temporal resolution of 150-200 fs.
- Data Analysis software for transient absorption measurements. Various models (Gauss, First derivative of Gauss, Exponential), Singular Value Decomposition, Global Analysis.
- Optical Methods and Energy Transfer Characterization
A broad range of optical methods is available for characterization of energy transfer phenomena down to single molecular/particle
level. Our capabilities include time- and spectrally resolved bulk/single molecule confocal fluorescence microscopy and fluorescence
correlation spectroscopy.
Instruments
- Laser System
Ti:sapphire oscillator, Tsunami Spectra Physics broadband 700-980nm (800 nm, 10 nJ, 100 fs, 80 MHz), uses Millennia Spectra Physics 5 W DPSS laser.
Ti:Sapphire regenerative amplifier, Spitfire Pro Spectra Physics (800 nm, 3.5 mJ, 100 fs, 1 kHz), uses Empower Spectra Physics 15 W DPSS laser.
Optical parametric amplifier, Topas, Newport (240–2600 nm, 15–500 mJ, 100 fs, 1 kHz)
- Transient Absorption Spectrometer, Helios, UltrafastSystems
supercontinuum-generation, 1.5 nm resolution, spectral range 450 to 1600 nm, <150 fs temporal resolution, 3.3 ns time window.
Last Modified: May 6, 2008
Please forward all questions about this site to:
Stephen Giordano.
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