Laser - Creating Raman Scatter
In Raman spectroscopy, it is essential to utilise a clean, narrow bandwidth laser due to the fact that the quality of the Raman peaks are directly affected by the sharpness and stability of the delivered light source. The
i-Raman® spectrometer system features a patented CleanLaze® technology with a linewidth < 0.3nm when equipped with our 785nm and 830nm laser. This technology results in the correct center wavelength and avoids the phenomenon of “mode hopping.” In addition, the laser output power can be adjusted in the software from 0-100%, allowing you to maximise the signal-to-noise ratio and minimise integration time.
Laser lifetime of 10,000 hours ensures quality data for years to come!
Filter - Collects Data within 175cm-1 of the Rayleigh Line
The centre wavelength of the laser line is precisely maintained even when the peak power is increased by utilising a series of high end filters. A laser line filter is used to clean up any side bands and ensure a narrow excitation is delivered to the sample by removing all secondary excitation lines before exciting the sample. The light collected from the sample is then filtered via a notch filter. Finally, an ultra steep long pass filter further removes lingering laser lines to allow accurate measurement of Raman peaks as close as 175cm
-1 from the Rayleigh line. An E-grade filter upgrade is available, allowing the measurement of Raman peaks as close as 65cm
-1 from the Rayleigh line.
Spectrometer - Optimised for Raman Spectroscopy
The spectrometer design in the i-Raman® is dedicated for Raman applications. You can customise your spectrometer by choosing from a variety of excitation wavelengths. In addition, each configuration can be further customised for your individual detection needs. Choose from wider spectral range or high resolution optimised systems. Research grade spectral resolution of 3cm
-1 can be achieved with our double pass transmission optics. Most Raman applications do not require such tight resolution, so a wider spectral range would be the better choice in that case. The high-throughput optical layout of all i-Raman® configurations are ideal for those low-light level Raman applications.
Probe - Easy Transition Between Sample Types
The probe allows for measurement of various materials in the form of liquids, gels, powders, or solids under both lab conditions (lab grade) or demanding environmental conditions (industrial grade). Constructed with state-of-the-art telecom packaging techniques, the probe has a flexible fiber coupling encased in a durable protective jacketing material which delivers Rayleigh scatter rejection as high as 10 photons per billion. Wavelength excitation probes come in 532nm, 785nm, or 830nm.
Custom wavelength excitation probes available.
Software
B&W Tek offers comprehensive software packages that provide solutions for Raman application needs. Powerful calculations, easy data management, and user friendly, easy-to-follow work flow are all at the tips of your fingers.
BWSpec™ is the foundation for all B&W Tek software platforms and comes standard with every Raman spectrometer. Built on the proven BWSpec™ platform, BWID™ (optional) is optimized for identification and verification of materials. For industrial Raman applications that require federal compliance: BWID™- Pharma (optional) supports all requirements for FDA 21 CFR Part 11 Compliance.
The most recent addition to B&W Tek’s software portfolio is BWIQ™ chemometrics software for use with the i-Raman® Plus and other high resolution Raman products. BWIQ™ is a multivariate analysis software package which can analyze spectral data and discover internal relationships between spectra and response data or spectra and sample classes. By coupling new and transitional chemometric methods with cutting edge computer science technology such as sparse linear algebra algorithms, BWIQ™ represents the next generation in speed, accuracy, and performance.
