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  • UV 200-400 nm
  • Visible
  • Near IR 750-2500 nm
  • Mid IR 2.5 - 18 µm
Fiber Optic ATR Loop Probe
Fiber Optic ATR Loop Probe - Image 2
Fiber Optic ATR Loop Probe - Image 3
Fiber Optic ATR Loop Probe - Image 4

Fiber Optic ATR Loop Probe

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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
Excel LogoArtphotonics_Sale from stock Summer 2026

Description

The 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 well-suited for remote analysis of composition of liquids, pastes and soft surfaces and do not require sample preparation. The Loop fiber probe is the simplest one in the FlexiSpec® product family to allow for low cost ATR-spectroscopy. Loops with different number of turns (single, double or triple) serve to fit the desired sensitivity.

For a detailed instruction of how to use the Loop Probe, please see:

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

Common Parameters of Fiber Optic Multi-Loop Probes FlexiSpec®
Total Length 1m (opt.: PIR up to 5m, CIR up to 10m) *
Shaft Length 120mm *
Shaft Diameter 10,6mm
Shaft Material PEEK
Protective Tube Material PEEK
Input / Output Connectors Long SMA-905 (opt.: any other type)
Detachable PIR fiber Loop Loop; Multi-Loop (Double-, Triple-Loop)
*Customized dimensions are available on request
Specification of Fiber Optic ATR-Loop Probes FlexiSpec®
Probe type Chalcogenide-IR (CIR) Polycrystalline-IR (PIR)
Transmission range 6500 – 1550 cm-1 (1.5-6.0μm) 2500 – 600 cm -1 (4-17μm)
Fiber type Chalcogenide glass (As-S) Silver Halide (AgCl:AgBr)
Temperature range ≤ 90°C ≤ 100°C
   art photonics – mid IR ATR Loop Probe – Flyer
   art photonics –  Fiber optic probes  – Catalog 2025
   art photonics – Detachable Loop – ATR Probe with polycrystalline or chalcogenide fiber – Manual
   art photonics – ATR-Loop – Datasheet
   art photonics – Sterilization of ATR-Loop Probes – Article
   art photonics –  ATR_cristal choice –Technical note

 

  • Remote evanescent absorption (ATR-) spectroscopy in-citu
  • Multiple ATR-spectroscopy by immersion of fiber loop in liquid
  • In-vivo molecular spectroscopy for medical diagnostics by simple touch of ATR-Loop on skin or tissue

Do you have any questions about this or any other product? Send us an inquiry, and our personnel will answer your question as soon as possible.

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