What Are Inverse Centimeters (cm⁻¹) in Raman Spectroscopy?

Aug 25, 2026 | Glossary of Spectroscopy Terms, Spectroscopy, StellarNet Definition

What Are Inverse Centimeters (cm⁻¹) in Raman Spectroscopy? Inverse centimeters, written as cm⁻¹, are units of wavenumber. Wavenumber describes the number of light waves that fit within one centimeter and is directly proportional to the frequency and energy of the...

The Dogs of StellarNet and the ChemWiz-ADK™ NIR Feed and Pet Food Analyzers

Aug 6, 2026 | Food, News, Spectroscopy

Celebrate National Dog Day on August 26th! This National Dog Day, we’re highlighting how advanced NIR spectroscopy helps pet food manufacturers create consistent, high-quality products for the animals we love. The ChemWiz-ADK™ Pet Food Analyzer combines...

Optical Characterization

Jul 9, 2026 | Glossary of Spectroscopy Terms, Thin Film

Optical Characterization Optical characterization is the process of measuring how materials and thin films interact with light. Common optical measurements include reflectance, transmission, absorbance, refractive index, extinction coefficient, and film thickness,...

Optical Filter

Jul 9, 2026 | Glossary of Spectroscopy Terms, Thin Film

Optical Filter Optical filters selectively transmit or block specific wavelengths of light and are widely used in spectroscopy, fluorescence microscopy, machine vision, laser systems, telecommunications, and scientific instrumentation. Their optical performance...

Wafer Metrology

Jul 9, 2026 | Glossary of Spectroscopy Terms, Thin Film

Wafer Metrology Wafer metrology refers to the measurement and characterization of thin films, surface properties, and process parameters throughout semiconductor manufacturing. Accurate wafer metrology helps improve process control, increase manufacturing yield, and...

Dielectric Thin Films

Jul 9, 2026 | Glossary of Spectroscopy Terms, Thin Film

Dielectric Thin Films Dielectric thin films are electrically insulating materials used to control the reflection, transmission, and propagation of light. Silicon dioxide, silicon nitride, titanium dioxide, and tantalum pentoxide are among the most common dielectric...