Pictured above is our low-temperature Raman microscopy setup allowing materials to be brought in via vacuum suitcase. This instrument excites the sample with a 532nm laser pulse and can measure the Raman shift of these photons out to 5000 cm-1 The Raman microscope is capable of measuring samples one atomic layer thick with cross-sectional areas of 1µm2. In addition, it has full polarization capabilities to measure the symmetry of the lattice and excitations.

Optoelectronics:

The group also set up an optoelectronics microscopy system. It includes lasers are 10.6 µm and 4-5µm, capable of imaging the photocurrent, photothermal and photoconductivity responses of nanodevices.