InPhotote1064TM Portable Raman System SR version
Description
When detecting Raman scattering, the sample's fluorescence can be a large non-Raman signal source. Since the fluorescence signal is also shifted from the laser frequency, it can be difficult to filter it out. Fortunately, fluorescence can be reduced by using a longer wavelength laser as the excitation source. 785nm laser has been the main excitation source for Raman spectroscopy, because it produces relatively low fluorescence and the photodector array is widely available in this wavelength range. Recently, the InGaAs photodector array has been commercialized which extends the range of wavelength detection to 1-2mm. Coupling the InGaAS photodetector with a 1064nm laser excitation source reduces interference from fluorescence. The following shows the Raman spectrum of motor oil with 785 and 1064 nm laser respectively.
InPhotote1064TM Portable Raman System SR version
Specifications |
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|---|---|
| Excitation Wavelength: | 1064 nm |
| Raman Shift Range: | 1000-250cm^-1 |
| Spectral Resolution: | 8 cm^-1 |
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Frequently Asked Questions
The InPhotote1064TM Portable Raman System SR version is a portable Raman system that uses a 1064nm laser excitation source to reduce interference from fluorescence when detecting Raman scattering.
The optical components of the InPhotote1064TM Portable Raman System are shock-mounted in a rugged, water-resistant case. The outer dimensions are 21" x 12" x 8" (533 x 305 x 203 mm), and it weighs 29 lbs. (13 kg). The spectrometer can be operated at temperatures up to 30°C.
The InPhotote1064TM Portable Raman System uses a Standard RamanProbeTM fiber optic sampling probe with 5 m cable length to measure unknowns through transparent containers (glass, plastic).
The spectral range of the SR version of the InPhotote1064TM Portable Raman System is 250 - 1000 cm-1.
The spectral resolution of the LR version of the InPhotote1064TM Portable Raman System is 10-14 cm-1 (FWHM).