Fiber Optic ATR Loop Probe

Main features:

  • High throughput at Mid InfraRed range
  • On-line absorbance spectroscopy of liquids, pastes & soft solid surfaces
  • Compatible with all FTIR, QCL and IR- Filter spectrometers
  • Cost effective alternative to more expensive ATR-IR-fiber probes
  • Replaceable ATR Loop PIR-Fiber Tips
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ATR-Loop Infrared PIR-fiber probe was the first in FlexiSpec® product line designed for use with FTIR and other Mid IR spectrometers. ATR-Loop PIR-fiber probes are perfect for remote analysis of composition of liquids, pastes and soft surfaces with no need in sample preparation. Loop fiber probe is the simplest one in FlexiSpec® product family to enable low cost ATR-spectroscopy.

For more information please visit our “Downloads” section and find relative articles at our “Publications” page.

Specification of Fiber Optic ATR-Loop Probes FlexiSpec®
 Probe typeChalcogenide-IR (CIR)
Polycrystalline-IR (PIR)
 Transmission range 6500 – 1700 cm-1 3600 – 600 cm-1
 Fiber type Chalcogenide glass (As-S) Silver Halide (AgCl:AgBr)
 Temperature range ≤ 90°C ≤ 100°C
  Common Parameters of Fiber Optic Multi-Loop Probes FlexiSpec®
Total Length1m (opt.: PIR up to 5m, CIR up to 10m) *
Shaft Length120mm *
Shaft Diameter10mm
Shaft MaterialPEEK
Protective Tube MaterialPEEK
Input / Output ConnectorsLong SMA-905 (opt.: any other type)
Detachable PIR fiber LoopLoop; Multi-Loop (Double-, Triple-Loop)
  *Customized dimensions are available on request
  • Remote evanescent absorption (ATR-) spectroscopy in-citu
  • Multiple ATR-spectroscopy by immersion of fi ber loop in liquid
  • In-vivo molecular spectroscopy for medical diagnostics by simple touch of ATR-Loop to skin or tissue