Raman
| i-Raman™
| Lasers | |
| 532nm Excitation | ☑ |
| 785 Excitation | ☑ |
| Laser Power Control | ☑ |
| Spectrometer | |
| Spectral Range (785nm Laser) | 175cm-1 - 2600cm-1 or 3200cm-1 |
| Spectral Range (532nm Laser) | 175cm-1 - 3300cm-1 or 4000cm-1 |
| Spectral Resolution | 3.0cm-1 - 7.0cm-1 |
| Stray Light Rejection | 0.07% at 800nm |
| Detector | |
| Detector Type | TE Cooled Linear Array |
| Pixel Number | 2048 |
| Pixel Size | 14μm x 200μm |
| TE Cooling Temperature | 14°C |
| Max Quantum Efficiency | 90% |
| Well Depth | 62,500 Electrons |
| Dynamic Range | 300:1 (typical) |
| Digitization Resolution | 16-bit or 65,535:1 |
| Readout Speed | 500KHz |
| Integration Time | 9ms - 65,535ms |
| Electronics | |
| USB | 1 External Port 2.0 / 1.1 |
| Trigger Mode | 5V TTL I/O |
| Power Input | 100 - 240VAC, 50 - 60Hz |
| Bluetooth | |
| Ethernet | |
| Power Options | |
| AC | Standard |
| DC | Optional |
| Battery | Optional w/ DC only |
| Physical | |
| Dimensions | 17 x 34 x 23.4cm (6.7 x 13.4 x 9.2in) |
| Weight | ~3 kg (~6.6 lbs) |
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.
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.
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!
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.
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
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.
Two Raman probe options are available to allow sampling of various materials in the form of liquids, gels, powder, or solids under lab conditions (Lab Grade) or demanding environmental conditions (Industrial Grade).

| Lab Grade (BAC100) | Industrial Grade (BAC101) | |
| Excitation Fiber | 105μm core w/ FC/PC connector | |
| Collection Fiber | 200nm core with SMA 905 male connector | |
| Fiber Length | 1.5m | |
| Excitation Wavelength | 785nm, 532nm, Other options available | |
| Laser Blocking | OD6 default, OD8 optional | |
| Shaft Material | SS 316L | SS 316L, Hastelloy C-276, Titanium |
| Shaft Diameter | 9.5mm | 12mm |
| Shaft Length | 76.2mm | 76.2mm - 203.2mm (Custom lengths available) |
| Window Material | Quartz | Fused Silica, Sapphire, Sapphire Ball Lens |
| Seal Material | Adhesive sealed | Kalrez® O-ring, Custom |
| Working Distance | 5.90mm | 5mm, 10mm, 20mm |
| Spot Size | 85μm | 85μm |
| Maximum Pressure | 30 PSI | 300 PSI |
| Maximum Temperature | 80°C | 300°C at probe tip |
Probe microscope adapter for Lab Grade Raman probe (BAC100). Compatible with industry standard microscope objective lenses.
Probe microscope adapter for Industrial Grade Raman probe (BAC101). Compatible with industry standard microscope objective lenses.
Our Enhanced Raman Cuvette Holder (BCR100A) is a uniquely designed sampling device that can increase Raman signal up to 3x’s in comparison to a standard cuvette holder by utilizing precise focusing; featuring a three point locking mechanism for reproducibilty. The enhanced Raman cuvette holder can be used with any standard 12.5mm x 12.5mm size cuvette to hold liquid or powder samples.
The BCR100A brings many advantages to Raman measurements; High Stability, Repeatability, Enhanced Raman Signal.

Liquid sample flow cell is a sampling device designed for Raman online process monitoring. It provides a sampling platform with high throughput and stability.
Our Flow Cells are constructed with your choice of three different cell materials, 316 SS, Titanium, or Teflon. Window options include Quartz or Sapphire. The BAC160 uses a Kalrez® O-ring which creates a chemical resistant sampling device.
Custom cell material and window construction available upon request.

| Cell Material | 316 SS or Titanium |
| Fitting | 0.5in Swagelok |
| Tubing OD | 0.5in – 2in |
| O-ring Material | Kalrez® O-ring Other materials on request |
| Window Material | Quartz Sapphire Other materials on request |
| Working Distance | Fixed |
| Excitation Wavelength Range | 300nm – 2500nm |
| Maximum Temperature | 150°C |
| Maximum Pressure | 150 PSI |
| Weight | 0.5 lbs |
With a small laser spot size of 85mm, laser focus at the sample area becomes critical in all dimensions. The BAC150 precision probe mount accessory provides coarse and fine adjustment knobs for the X, Y, and Z axes. Z-axis adjustment allows for laser focusing on the desired plane in order to maximize the Raman signal.
The BAC151 is a visual assisted sampling platform that utilizes video precision spot sampling at a fraction of the cost of a typical Raman Microscope. The digital camera and LED illuminator allows for precision targeting and focusing of the spot size by way of an on screen display via BWSpec™ software or an added external monitor. Standard objectives from 10x’s - 100x’s can be utilized and sample images can be easily recorded and saved. Both coarse and fine adjustment knobs are available for X, Y, and Z-axis control. Bright and dark field illumination optimizes the light required for various sample surfaces. Compatible with our Lab and Industiral Grade Raman probes, this video microscope system provides advantages of Raman microscopy at a fraction of the cost compared to similar research instruments.
Immersion shaft for B&W Tek Lab Grade Raman probe, Stainless Steel body. Fused Silica Window, for taking Raman measurements immersed in liquids.
Immersion shaft for B&W Tek Lab Grade Raman probe, Stainless Steel body, Sapphire Window for taking Raman measurements immersed in liquids.
Replacement shaft for Lab Grade Raman probe (BAC100)
Thermo Scientific GRAMS/AI® Lab software package: for processing and managing spectroscopy data
PLSplus/IQ for Thermo Scientific GRAMS/AI 8: for creating qualitative and quantitative chemometric calibration models
Spectral ID for Thermo Scientific GRAMS/AI 8: for qualitative material identification through spectral library search
The foundation for all B&W Tek, Inc. software platforms, BWSpec™ is ideal for broad Raman applications.
BWSpec™ is a spectral data acquisition software developed by B&W Tek, Inc. for use with our spectrometers, systems, and accessories. It is included with the purchase of any product which uses it to operate. The software delivers a wide range of features designed to perform complex measurements and calculations at the click of a button. BWSpec™ features multiple data formats and the capability to optimize scanning parameters such as integration time and laser output power control. In addition to data acquisition and data processing, other features include automatic dark removal, spectrum smoothing, and manual/auto baseline correction. The software also contains an OCX interface for users to collect spectra in Thermo Scientific GRAMS/AI®.
Built on the proven BWSpec™ platform, BWID™ is optimized for identification and verification of materials
BWID™ has been specifically designed for Raman spectroscopy. This software will rapidly identify and verify materials stored in your own personal easy-to-create library or easy-to-load third-party library. One click is all you need to create or expand a Raman library. The combination of BWID™ and any of B&W Tek’s Raman spectrometer systems unite to create a powerful and effective solution for identification and verification of materials. The reporting capability enables a user to save, view, and print any analysis report.
For industrial Raman applications that require federal compliance: BWIDTM-Pharma supports FDA 21 CFR Part 11 Compliance
BWID™-PHARMA is designed for pharmaceutical manufacturing facilities that are facing the increasing need for 100% inspection of incoming raw materials. In addition to all the features provided in BWID™, BWID™-PHARMA provides enhanced system access security and an audit trail of data activities that support compliance with the FDA 21 CFR Part 11 regulation for Electronic Records and Electronic Signatures, benefiting pharmaceutical system validations including Installation Qualifications (IQs) and Operational Qualifications (OQs) procedures.
Sensitive, Versatile, Simple
The i-Raman™ spectrometer system is unique for its high resolution combined with field-portability. With performance comparable to large bench-top Raman systems and weighing less than 10 lbs, it’s a portable laboratory instrument available at a fraction of the cost to many large footprint Raman instruments on the market today.