Raman Spectroscopy

Raman spectroscopy, a molecular spectroscopy which is observed as inelastically scattered light, allows for the interrogation and identification of vibrational (phonon) states of molecules. As a result, Raman spectroscopy provides an invaluable analytical tool for molecular finger printing as well as monitoring changes in molecular bond structure (e.g. state changes and stresses & strains).

In comparison to other vibrational spectroscopy methods, such as FT-IR and NIR, Raman has several major advantages. These advantages stem from the fact that the Raman effect manifests itself in the light scattered off of a sample as opposed to the light absorbed by a sample. As a result, Raman spectroscopy requires little to no sample preparation and is insensitive to aqueous absorption bands. This property of Raman facilitates the measurement of solids, liquids, and gases not only directly, but also through transparent containers such as glass, quartz, and plastic.

Raman Spectroscopy Systems


High Resolution TE Cooled Fiber Optic Raman System

The i-Raman® is unique for its high resolution combined with field-portability, with performance comparable to large bench-top Raman systems and weighing less than 3kgs. The i-Raman offers 532nm, 785nm, and 830nm excitation wavelength options. All i-Raman systems feature deep TE Cooling, allowing the maximum effective integration to be 4 minutes. This makes the i-Raman ideal for demanding applications involving low concentrations and weak Raman scatterers.


i-Raman Plus

Highly Sensitive, High Resolution Fiber Optic Raman System

The i-Raman® Plus is an enhanced version of their award winning i-Raman portable Raman spectrometer, now powered by their innovative smart spectrometer technology. The system’s small footprint, lightweight design, and low power consumption provide research grade Raman capabilities anywhere. The i-Raman Plus comes standard with a fiber optic probe, and can be used with an XYZ positioning stage probe holder, a cuvette holder, and their proprietary BWIQ multivariate analysis software. With the i-Raman Plus, a high precision qualitative and quantitative Raman solution is at your fingertips.


i-Raman EX

1064nm Fiber Optic Raman System

The i-Raman® EX is an extension of their award winning iRaman portable Raman spectrometer featuring a 1064nm version of their patented CleanLaze® excitation laser.



Raman Gemstone Identification System

The GemRam™ is a lightweight, portable Raman spectrometer dedicated to both the verification of known precious and semiprecious gemstones as well as the identification of unknown gemstones.


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NanoRam™ - Handheld Raman Spectrometer

B&W Tek is proud to present a revolutionary tool for quality control, forensic analysis, and anti-counterfeiting, the NanoRam™ handheld Raman spectrometer. The NanoRam™ is the ideal solution for incoming material identification and verification, at-line sampling, final inspection, and counterfeit drug detection. By combining state of the art TE cooling and spectrum stabilized laser technology, The NanoRam™ is the most sensitive and repeatable handheld spectrometer ever designed to identify harmful and non-conforming materials.

  • No Sample Preparation Needed (Analyzes Directly Through Transparent Containers)
  • Highly Selective, Accurate Material Identification for Reliable Pass/Fail Testing
  • CFR 21 Part 11 Compliant Software Designed for Use in cGMP Manufacturing Environments
  • TE Cooled Detector Provides Unmatched Detection Limits, Stability, and Repeatability
  • User Friendly & Intuitive Large OLED Touchscreen Designed for the Non-technical User

For Accessories, visit : http://www.bwtek.com/product/raman/accessories_raman.html