Cross-Sectional and Depth-Profiling Analysis of Multilayer Films Using the AIRsight Infrared Raman Microscope

User Benefits

- Infrared Raman microscopes can perform both infrared and Raman spectroscopy without moving the sample from the sample stage. - Depth-profiling by Raman spectroscopy does not require sample preparation, enabling faster characterization of multilayer films. - It can quickly determine the components of a multilayer film, and it uses chemical images to show their structural distribution.

Introduction

One of the main functions of plastic film in food and pharmaceutical packaging is to maintain product quality. To meet the packaging requirements of the product, the film often has multiple layers. The combination of layers is tailored to provide heat resistance, impact resistance, light shielding, oxygen barrier properties, etc., so the ability to determine the composition and thickness of these layers is essential for developing new films and ensuring their quality. The AIRsight infrared Raman microscope has a new design that incorporates a Raman spectroscopy unit within an infrared microscope. So while infrared spectroscopy and Raman spectroscopy are typically performed on separate devices, but AIRsight allows infrared spectroscopy and Raman spectroscopy to be performed on the same device. AIRsight it can record both infrared and Raman spectra from the same target area without moving the sample, and it can also perform Raman depth-profiling analysis, which can provide a depth profile without the need for sample preparation. This Application News describes using the AIRsight to analyze a multilayer film used in packaging.

June 2, 2026 GMT