Measure FAST – acquire 1000 spectral points in the time you would otherwise measure just one point in “traditional” scanning SFG setup. This allows for real-time monitoring of surface concentrations with submonolayer sensitivity. Alternatively this provides enough time to register weak SFG signal even if the sample is short-lived.
Look WIDE: Simultaneously monitor multiple peaks and their evolution in real time over 200cm-1 frequency range; not just the amplitudes, but also bandwidths and peak shapes in general; record minutes of “vibrational spectral movie” of your process.
Time-tested tabletop Ti:Sapphire CPA system – spend time on your experiment, not on laser alignment.
Powerful IR beam capable of overcoming strong absorption and reaching interfaces covered with water, e.g. in electrochemical cell.
Powerful visible beam: split out portion of it and use it to provide a pump with SFG signal serving as a probe for pump-probe experiment with picosecond time resolution.
Unique sample positioning system with fixed base plane allowing for rapid changes of dissimilar samples and complete sample cells, all that without the need for major realignment of the optics – several research groups can share one installation reconfiguring it for new experiment in a matter of minutes.
Quickly change from vertical sample orientation (good for flat solid samples) to horizontal orientation (suitable for electrochemical cells).
Choose between copropagating IR-Visible beam geometry and on-sample crossing geometry – the former allowing for simple optical alignment; suitable for less experienced researches; use the latter if stray nonlinear optical effects has to be completely eliminated.
With minor realignment switch the system to CARS spectrometer mode, taking advantage of the same versatile sample holders and detection system. CARS, while not surface-sensitive, can complement SFG in cases where sample composition results in complicated vibrational spectra.Please read more on SFG in PDF section.
