Mobile micro-Raman spectroscopy @ 532 nm operates at ~0.5 cm for highly specific material identification. The confocal head ensures that laser beam and the collection beam are co-axial. A small microscope camera records the area that has been captured. It utilises a 532 nm monochromatic excitation laser focussed into a 1 µm spot incident on the object. The returning Raman and fluorescence spectra is collected by a VIS-NIR spectrometer coupled into to the confocal probe. The spectrometer is modular, providing a choice of two grating options for high spectral resolution of large spectral band width measurements covering a Raman shift range of 30cm-1 – 2620 cm-1 and 30cm-1 – 6320 cm-1 at spectral resolutions of 4 cm-1 and 15 cm-1 respectively. The system is equipped with a camera coaligned through the probes optics which provides a microscopic image of the collection region used for positioning measurements and recording data collection regions. Fine positioning of the laser spot and Raman mapping of a small region can be enabled by mounting the confocal probe onto a motorised XYZ translation stage.

Raman spectra in ASCII format

Noncontact (no physical contact)
Nondestructive (no permanent damage or alteration)
Noninvasive (no physical alteration)

ISAAC in-house developed instrument

small spot