Which laser is suitable for Raman analyses? How do I choose the correct laser for my sample?

uRaman offers 3 common laser wavelength, namely 532nm, 633nm and 785nm. The choice of the laser wavelength is highly sample dependent. For example, 532nm is good for Carbon-related samples while produce high background fluorescence for organic samples, while 785nm works well with Oil and minerals but easily burn black or dark materials. We recommends customers to send us some of their typical samples for testing, especially if they had not done prior Raman measurement on them before.