Blog

Raman Poster Presentation Series – Food Analysis using Raman Microscopy. This short video discusses some applications of Raman microscopy in the foods & drinks industry: detection of pesticides, identification of edible oils, ethanol and methanol testing of whisky, and chocolate distribution analysis.

FTIR spectroscopy can be configured with multiple sampling accessories covering all applications. This article introduces the most commonly used sampling techniques; transmission, ATR, specular reflectance, and DRIFTS. Learn about how each technique works, its most important applications areas, and the pros and cons of using them in your research.

This quick read blog will introduce the basics of FTIR spectroscopy discussing how the instrument works, and what the resulting spectrum can reveal about your sample.

Fluorescence lifetime is an important photophysical parameter, providing insights into the energy relaxation and dynamics of the species under study.

Learn more about the differences between molecular absorption, excitation and emission spectra in this latest blog post.

The quantum yield of a material is a fundamental photophysical parameter that defines its efficiency to convert absorbed light into emitted and can be measured optically using either the relative or absolute method. This blog post focuses on the underlying theory of the relative method and explains how to measure it by using the Edinburgh Instruments FS5 Spectrofluorometer.

What is Quantum Yield? In this article we give a useful insight to the history of quantum yield and how to measure it using the Absolute and Relative methods.

Laser Induced Fluorescence (LIF) is an optical spectroscopic technique where a sample is excited with a laser, and the fluorescence emitted by the sample is subsequently captured by a photodetector. LIF can be understood as a class of fluorescence spectroscopy where the usual lamp excitation is replaced by a laser source. Find out more.

Kasha’s Rule is named after the American molecular spectroscopist Michael Kasha and is one of the main principles in fluorescence spectroscopy. This article explores the results of Kasha's seminal paper “Characterization of Electronic Transitions in Complex Molecules". Learn more about this pioneer of fluorescence spectroscopy.

In this article, the definitions of transmittance and absorbance of light by a substance are first introduced followed by an explanation of the Beer-Lambert Law.