SENTERRA Dispersive Raman Microscope The SENTERRA is a high performance Raman microscope spectrometer designed for the most demanding analytical and research applications. Its most important innovation is certainly its internal continuous calibration as it ensures highest wavenumber accuracy without the need for calibrations with external standards. SENTERRA Dispersive Raman Microscope The SENTERRA microscope combines the sensitivity of the dispersive Raman technology and the wavelength accuracy of the Fourier transform Raman spectroscopy. Compact and Rugged Design Most commercial Raman microscopes employ spectrometers that are separate from the microscope. Therefore, alignment and maintenance of these devices is time-consuming. SENTERRA integrates a multi-laser Raman spectrometer between the reflected light illuminator and the binocular of the microscope. SENTERRA's compact design provides a short beam path, which increases sensitivity and makes it more robust and stable.