Optical Raman spectra of water in quartz cuvette, and empty quartz cuvette, measured with Thorlabs Raman Kit at 785nm laser diode wavelength

<p>The Thorlabs Raman spectroscopy kit was tested with water. The excitation light was 785nm laser diode. The laser wavelength was calibrated with a NIST polystyrene sample in the shape of a prisma with size of a cuvette. The sample was the empty quartz cuvette, and the cuvette filled with water. Simple subtraction of both spectry yields a watzer spectrum, with a broad H-O-H vibration peak at 900 nm.</p> <p>&nbsp;</p> <p><a href="https://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=14241">Modular Raman Spectroscopy&nbsp;Kit (thorlabs.de)</a></p>