Posted in | Optical Probe

Fiber Optic Attenuated Total Reflection Probes

The FlexiSpec® product line developed by art photonics is the newest generation of Attenuated Total Reflection probes. Near and Mid IR-fiber ATR-Probes have been designed to suit any model of FT-IR, FT-NIR, and other photometers, IR-spectrometers, and IR-LED or QCL spectral sensors.

The ATR immersion fiber optic probes with patented design are ideal for reaction tracking in pilot plants, labs, and for complete automated process control.


Specification of Fiber Optic Immersion ATR- Probes
Probe type Di- ATR ZnSe- ATR Si- ATR ZrO₂- ATR
Transmission range 5.2-17 μm
600-1900 cm-1
3.2-17 μm
600-3100 cm-1
5.2-17 μm
600-3100 cm-1
1.5-6.5 μm
1550-650 cm-1
Fiber type PIR-900/1000
Silver Halide
Silver Halide
Silver Halide
CIR 500/550
Chalcogenide glass
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
Total Length 1.5 m (opt.:1m 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


  • Process Analytical Technologies (PAT)
  • Crystallization process screening in-situ IR-Spectroscopy for PAT in the chemical, petrochemical, biopharmaceutical, atomic, and food sectors
  • Real-time reaction monitoring
  • Remote polymerization control

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