By B&W Tek
The Extended Range (E) option of our 785 nm BAC100B-E probe extends Raman data into the low frequency (LF), or terahertz (THz) Raman region. This LF data provides additional detail on structural differences between samples, beneficial in the identification of polymorphs. Our standard Raman probe has a Raman cut-off of 150 cm-1 and our ER Raman probe provides a cut-off of 65 cm-1. Raman shift cut-on comparison of Sulfur with BAC100B (150 cm-1) and BAC100B_E (65 cm-1)
Build Your Kit Performs with least amount of fluorescence; best choice for dark-colored materials such as natural products, dyes, oils, and polymers. 1064 nm is most commonly used for any samples that have strong fluorescence, such as hazardous materials, illicit drugs, botanicals, and highly colored compounds, such as paints and inks. Research-Grade Tier Our 1064 nm Research-Grade Tier provides our best fluorescence rejection, with a major boost in throughput with our unique high-throughput (HT) mode. We integrate an ultra-low-noise InGaAs array with deep cooling to -20 °C for a significant noise reduction. This is the ideal platform for cutting-edge research requiring the highest level of sensitivity for the widest range of applications. 1064 nm DIY Raman system provides fluorescence-free high -quality Fingerprint Raman data. 1064 nm DIY Raman provides lower resolution but higher SNR performance than our 785 nm Professional Tier CCD system.
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The Extended Range Raman kit utilizes an 860 nm/1064 nm dual-wavelength laser combination to overcome the typical range/resolution trade-off with traditional dispersive 1064 nm Raman systems. The 860/1064 DIY Extended Range Raman kit includes: 1. Research-grade Sol HT 1.4 spectrometer, providing extended Raman coverage from 200 to 4600 cm-1, while providing a resolution of 10 cm-1. 2. Configurable Raman Probe designed for dual-wavelength operation in a single probe body. 3. Turn-Key dual-wavelength laser system. Raman Concatenation is an exciting new technique, and it involves sequentially collecting Raman spectra from two NIR lasers with one Raman spectrometer and one Raman probe. It enables fluorescence free spectra of the fingerprint and stretching region with increased sensitivity and discrimination. When samples have strong fluorescence, Raman concatenation allows for shifting the fingerprint excitation laser to longer wavelengths, even 1064 nm, and still allows for measuring the Raman stretch region by using an 860 nm laser, enabling the measurement of aliphatic and aromatic C-H stretch differences, compounds with N-H stretches, and even the elusive water O-H stretch which extends out to beyond 3600 nm.
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Why is the choice of the THz Raman probe and Accessories important? The THz Raman probe is a specialized design that provides the ability to measure to within 5 cm-1 of the laser line, allowing you to use the full extent of the THz Raman spectrum. THz Raman probe showing its 38 mm Dovetail mount for accessories.
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