Why Choose Raman?

• No sample preparation required
• Measure through glass, quartz, plastic (non-contact)
• Samples can be solid, liquid or gas, transparent or opaque
• Small sample size to reduce cost
• Wide spectral coverage for diversity of applications
• Spectra that is more clean and precise than FTIR or NIR

Collects Data within 175cm^-1 of the Rayleigh Line

The center wavelength of the laser line is precisely maintained even when the peak power is increased by utilizing a series of high end filters. A laser line filter is used to clean up any side bans 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 line to allow accurate measurement of Raman peaks as close as 175cm^-1 from the Rayleigh line.

Cooled Detector for Low-Light Level Detection

Cooling an array detector with a built-in thermoelectric cooler (TEC) is an effective way to reduce dark current and noise to enhance the dynamic range and detection limit. The graphs below show the dark current and noise for an uncooled versus a cooled CCD detector at an integration time of 30 seconds. Operating at room temperature, the dark current nearly saturates the uncooled CCD. When the CCD is cooled to 14°C, the dark current is reduced by four times. This allows the spectrometer to operate at long integration times and detect weak optical signals.

Creating Raman Scatter

In Raman spectroscopy it is essential to utilize 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 linewidth as narrow as 0.01nm when equipped with our 785nm 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 maximize the signal-to- noise ratio and minimize integration time. Our standard automatic shutter will reduce photobleaching for a variety of different sample types.

Laser lifetime of 10,000 hours ensures quality data for years to come!

Optimized for Raman Spectroscopy

The spectrometer design is dedicated for Raman applications. You can customize your spectrometer by choosing from a variety of excitation wavelengths. In addition, each configuration can be further customized for your individual detection needs. Choose from wider spectral range or high resolution optimized 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, for those more general applications, a system that provides a wider spectral range is your solution. The high-throughput optical layout of all i-Raman™ configurations are ideal for those low-light level Raman applications.

Easy Transition Between Sample Types

Taking measurements is as easy as point and “trigger!” By enabling the trigger option, 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-theart 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. Available for use with two excitation wavelengths: 785nm and 532nm.

Custom wavelength excitation probes available

Small Footprint - Less than 10 lbs

The small footprint and lightweight design, provides research grade Raman capability anywhere.

A rolling black suitcase with protective foam inserts is available for transportation and storage.