FlexiSpec®

Spectroscopy Fiber Probes & Probe Couplers

FlexiRay®

Fibers | Cables | Bundles | Accessories

FlexiService

Loan & Installation | Measurements Training | Repair | Development
News
Latest News
9 July 2026
Raman vs. Mid-IR ATR Spectroscopy for In-Line Reaction Monitoring: Technical Note

Mid-infrared (mid-IR) and Raman techniques are complementary vibrational spectroscopy methods utilized extensively in Process Analytical Technology (PAT). While both probe molecular vibrations, they rely on fundamentally different optical effects: mid-IR ATR detects the absorption of mid-IR radiation, whereas Raman relies on the inelastic scattering of visible or near-infrared (NIR) laser light. For system integration in […]

Read more
5 July 2026
Precision by Design: What Quality Control Really Looks Like at art photonics

Every fiber, cable, and probe that leaves our Berlin facility gets put under a microscope. Literally. Before a product ships, we inspect the fiber end faces for cracks and contamination, check core/clad geometry, and verify transmission against spec. On mid-IR assemblies, that means confirming losses stay within 0.2–0.3 dB/m in the 9–13 µm range — […]

Read more
Latest Events
10 June 2026
EPIC Technology Meeting on Photonics for Quantum Technologies | 15 June 2026 | Berlin, Germany

We are happy to welcome attendees of the EPIC Technology Meeting on Photonics for Quantum Technologies to our Berlin headquarters. On Monday, 15 June 2026, as part of the Program A company visits, we open our doors to give you a firsthand look at our production environment. We engineer and manufacture our mid-IR fiber solutions […]

Read more
1 June 2026
CPACT Webinar: Bridging the Gap from the Lab to Real-Time Process Control

Transitioning from offline sampling to real-time, in-line monitoring remains one of the most significant bottlenecks in Process Analytical Technology (PAT) today. When process engineers are forced to wait on delayed lab results, it impacts both efficiency and process optimization. To help address this challenge, art photonics is proud to announce an upcoming webinar hosted by […]

Read more
About Our Company
art photonics GmbH, founded in Berlin in September 1998, is one of the worldwide leaders in development and production of specialty fiber products for a broad spectrum from 300 nm to 16 µm. Unique technologies of Polycrystalline Mid InfraRed (PIR-) fibers and Metal coated Silica fibers are used for assembly of various spectroscopy probes for medical diagnostics and industrial process control, in volume production of fiber for medical and industrial lasers, for different fiber bundles, etc. Since January 2024 art photonics GmbH is a member of NYNOMIC GROUP.
Member Of:

Application Note: Polymer Classification with NIR Spectroscopy with Fiber-Optic Probes

Posted on: 
25 April 2025

Reliable identification and classification of raw polymer materials are essential for quality control and efficient processing.

Did you know that near-infrared (NIR) spectroscopy combined with advanced fiber-optic probes offers a powerful solution? This technique allows for rapid, non-destructive analysis outside the lab, making it possible to perform measurements right in the field or directly online.

art photonics' Diffuse Reflectance Fiber Optic Probes are designed for remote spectroscopy, collecting data needed for these demanding applications. The data is then processed using Principal Component Analysis (PCA), which enables the classification of various polymer raw materials, even when their spectra overlap.

Our latest application note demonstrates the successful classification of key polymers such as:

• Polyethylene terephthalate (PET)
• Acrylonitrile butadiene styrene (ABS)
• Polypropylene (PP)
• Polycarbonate (PC)
• Linear low-density polyethylene (LLDPE)

This capability makes near-infrared spectroscopy with fiber probes an optimal tool for developing robust Process Analytical Technology (PAT) and automated process control systems in the plastics industry.

To learn more about the methodology and results, please explore our new Application Note.

crossarrow-right
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram
Copy link
Powered by Social Snap