Raman Scattering Probes


FlexiSpec® product line includes the high sensitivity Raman fiber optic probe to be used with any Raman spectrometer.

Available in two options – multi-wavelength excitation (630-785 nm) and single-wavelength excitation (532 and 785 nm), these fiber probes have a bifurcated design, connecting the probe to both a laser and a spectrometer. Our Raman probe allows to analyze spectra in fingerprint (FP, 800-1800 cm-1) and high wavenumber (HWVN, 2800-3800 cm-1) spectral ranges using different lasers.

FlexiSpec® Raman fiber optic probes are compatible with process-interfaces to be cleanable and to enable reaction monitoring in lab, pilot plant and run full automated process control.

Main Features:

  • On-line Raman spectroscopy
  • Multi-wavelength excitation (630-785 nm)
  • Flexible and robust for industrial applications in harsh environment
  • Compatible with all fiber optic spectrometers


  • Reaction monitoring in real time
  • Process Analytical Technologies (PAT)
  • Analytical Characterization
  • Biopharmaceutical Analysis
  • Biofuel Development & Production


Probe Type Raman
Window Sealing Material Epoxy glue/PTFE, PEEK
Window Sapphire, AR coated (600 - 1050 nm)
Laser Wavelengths 621 - 787 nm
Detection Range from 805 nm (300 cm-1 @ 785 nm)
Filter Efficiency OD > 8 for Laser Rejection
Illumination (Laser) Fiber NIR/AL 105/125, NA = 0.22
Collection (Detector) Fiber NIR200/220, NA = 0.22
Shaft Material Stainless Steel 1.4301
Shaft Sealing Material FPM
Total Length 2 ± 0.05 m
Flexible Fiber 1.2 m, legs of 0.5 m length each
Protection Tubing Liquid Tight Protection (LTP)
Terminations Laser: FC/PC; Detector: SMA905
Temperature 0 - +120 °C
Pressure 0 - 20 Bar

Available SKUs:

Product Code Article-No. Shaft OD Shaft Length Laser Spot
RS-NIR-S-12-20-200/50-FS AP11815 12 mm 200 ± 5 mm ~0.2mm at 2-3 mm from the tip
RS-NIR-S-12-20-200/50-CL AP11813 12 mm 200 ± 5 mm collimated beam 3 mm OD
RS-NIR-S-6-10-200/50-FS AP11819 6.3 mm 100 ± 5 mm ~0.2mm at 2-3 mm from the tip
RS-NIR-S-6-10-200/50-CL AP11818 6.3 mm 100 ± 5 mm collimated beam 3 mm OD

Payment & Security

American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard PayPal Shop Pay Venmo Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Estimate shipping