Transient Absorption／Transient Reflection Spectroscopy
We have a purchased commercial TA/TR spectroscopy (Helios, Ultrafast System) and a home-built transient spectrometer. Helios provides a time resolution better than 100 fs (< 10-13 s), and probe wavelength ranges of 320-650 nm, 430-750 nm, 750-850 nm, and 850- 1600 nm, when working with different white light crystals. The TOPAS extends a pump wavelength range of 240-2400 nm. In addition, Helios is equipped with a microscope extension, providing a spatial resolution small than 3 μm, with a probe wavelength range of 430-750 nm, and a time resolution of ~300 fs.
