Laboratory Raman System for Rapid Material Identification - STRam®

The STRam® from B&W Tek is an award-winning instrument that is equipped with a high-throughput spectrometer, advanced algorithms, and dedicated sampling optics in a laboratory Raman system to offer quick material identification capabilities via a range of barrier layers and packaging formerly impenetrable with Raman.

Applying B&W Tek’s patented STRaman® technology, the STRam® can gather Raman signal produced underneath diffusive top layers to identify the material within even visually opaque barriers such as paper bags and plastic bottles. This eliminates the need to open containers and touch the material, thereby preserving package and sample integrity.

The system has been designed with a large sampling area and depth and reduced power density, thus enabling the measurement of samples that can be hard to measure using traditional focused Raman spectroscopy.


  • Pharmaceutical raw material identification
  • Customs and logistics package inspection
  • Through-package material inspection
  • Art and archaeological study
  • Narcotics detection
  • Forensic analysis
  • Bioscience and medical analysis
  • Material science research
  • Geological and mineralogical research


Laser Exiting Probe At Laser Port
Laser Power 340 mW, nominal 440 mW, nominal
Laser Power Control 0 to 100% (adjustable at 1% increments)
Spectrometer Range Resolution*
BWS475-785H-ST 150 – 2800 cm-1 < 6.0 cm-1 @ 912 nm
BWS475-1064-ST 100 – 2500 cm-1 < 10.0 cm-1 @ 1296 nm
Detector 785 nm excitation 1064 nm excitation
Detector Type High Quantum
Efficiency CCD
High Sensitivity
InGaAs Array
Temperature -25 ˚C -20 ˚C
Integration Time 7 ms – 30 min 0.2 ms – 5 min
Computer Interface USB 2.0
Trigger Yes (Compatible with B&W Tek Probes)
Power Options
DC Power Adaptor Input: 100-240 VAC 50/60 Hz.
Output: 12V DC @ 6.6 Amps
Battery Optional
Dimensions 15.7 in x 10.2 in x 9.8 in (40 cm x 26 cm x 25 cm)
Weight ~19.5 lbs (~8.8 kg)
Operating Temperature 0 °C - 35 °C
Humidity 10% - 85%, non condensing

*Resolution measured using atomic emission lines. Raman resolution per ASTM E2529-06 (Standard Guide for Testing the Resolution of a Raman Spectrometer) available upon request.

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