Posted in | Spectrometers

Fiber Optic ATR-Probes from Art Photonics

  • ATR-tip shaped for immersion in liquid flow without dead zone
  • High throughput in any part of Near and Mid InfraRed-spectrum
  • Compatible with all automated process-interfaces and spectrometers
  • Robust and flexible for industrial applications in harsh environments

FlexiSpec® product line from art photonics is the newest generation of Attenuated Total Reflection.

Near and Mid IR-fiber ATR-Probes are developed for any type of FT-IR, FT-NIR and other IR-spectrometers, photometers and QCL or IR-LED spectral sensors.

ATR immersion fiber optic probes with patented design are ideal for pilot plant, reaction monitoring in lab and for full automated process control.


  • Reaction monitoring in real time
  • Crystallization process screening
  • Remote polymerization control
  • Process Analytical Technologies (PAT)
  • In-situ IR-Spectroscopy for PAT in chemical, atomic, petrochemical, biopharmaceutical and food industries

Specification of Fiber Optic Immersion ATR- Probes FlexiSpec®

Probe type Diamond ATR ZnSe ATR Silicon ATR Cubic Zirconium ATR
Transmission 5.2-17 µm
(600-1900 cm1)
3.2-17 µm
(600-3100 cm-1) +
5.2-17 µm
(600- 3100 cm-1)
1.5-6.5 µm
(1550- 650 cm1)
Fiber type PIR-900/1000
Silver Halide
Silver Halide
Silver Halide
CIR 500/550
Chalcogenide glass (As-S)
Temperature range -100 °C / + 140 °C -100 °C / + 140 °C -100 °C / +140 °C -100 °C / + 90 °C
Pressure (max) 200 Bar (300 Bar) on request 10 Bar 100 Bar 100 Bar

Common Parameters of Fiber Optic ATR-Probes FlexiSpec®
Total Length 1.5 m (opt.:1 m to 5 m)*
Shaft Length 300 mm (opt.: 100-700 mm)*
Shaft Diameter 12 mm, 6.3 mm (opt.:3 mm)
Shaft Material Hastelloy C22
Length of Legs 500 mm (opt. 200 - 500 mm)
Protective Tube Material Liquid Tight SS-Conduit, KOPEX-Tube
Minimal Bending Radius 130 mm
Input / Output Connectors Long SMA (opt.: any other type)
Compatible Process-Interfaces Ceramat-FOS or SensoGate-FOS**

*Customized dimensions are available on request
**Available for 12 mm shafts only

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