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When to use a 1064 nm Laser with an InGaAs Detector for Raman Microscopy?

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When to use a 1064 nm Laser with an InGaAs Detector for Raman Microscopy?

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  • Author: Nikesh Patel
In Raman spectroscopy, NIR lasers such as 785 nm, 830 nm, and 1064 nm, are often used to overcome fluorescence interference in Raman measurements. In most cases, 785 nm or 830 nm lasers are sufficient to reduce fluorescence backgrounds and observe Raman bands with a high signal-to-noise ratio. In this technical note, we compares the performance of a 1064 nm laser with an InGaAs detector against 532 nm and 785 nm lasers with a CCD detector, specifically with respect to fluorescence suppression and detection sensitivity.

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