Cathodoluminescence imaging on quartz in sandstone

Measuring time dynamics with time-resolved cathodoluminescence

Posted by Delmic on Jul 17, 2019 10:37:00 AM

Cathodoluminescence has established itself as a powerful technique for measuring and understanding various properties of light. In the previous blog posts, we explained how intensity mapping can be used to measure amplitude of the electromagnetic waves, hyperspectral CL for wavelength measurements, angle-resolved CL for wave vector, and polarimetry for polarization. These properties of light are not static, which means that there is time dynamics associated with light, which can also be studied. How? Keep reading!

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Polarization-filtered cathodoluminescence for studying nanostructured devices

Posted by Delmic on Jun 17, 2019 10:52:00 AM



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CL intensity mapping: ideal imaging technique for geological samples

Posted by Delmic on May 30, 2019 11:49:00 AM

One of the fastest and most straightforward techniques for understanding the composition and structure of geological samples is intensity mapping. What is it exactly? This imaging mode allows quickly obtaining cathodoluminescence contrast of the sample by acquiring CL intensity for every beam position. 

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The most modular cathodoluminescence detector: The SPARC

Posted by Delmic on May 15, 2019 1:30:00 PM



When adding the new equipment to the lab, it is important to consider a lot of various factors. One of such factors is how much experimental freedom the new system can offer. Not only it has to be configured specifically to cater your scientific needs, but also, ideally, it has to be modular in order to change as your experiments evolve. 

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What is Hyperspectral Cathodoluminescence?

Posted by Delmic on Apr 24, 2019 1:09:00 PM

For the past few weeks we have been focusing on possibilities of cathodoluminescence imaging of the SPARC CL detector. In this post we describe hyperspectral cathodoluminescence, which is a powerful tool for wavelength spectrum visualisation. 

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What is Angle-Resolved Cathodoluminescence?

Posted by Delmic on Mar 15, 2019 1:05:00 PM

In our last blog post we presented all six cathodoluminescence imaging modes that can be used with our SPARC detector to analyse and observe samples. In this blog post we are going to focus on angle-resolved cathodoluminescence, a technique which allows to create angular profiles of the samples.

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6 imaging modes of cathodoluminescence detector

Posted by Delmic on Feb 27, 2019 2:18:00 PM

Cathodoluminescence is a great tool for obtaining valuable information about the properties of a sample. This data can help researchers and developers get a better understanding of possible defects, efficiency of the material and other properties. 

The SPARC cathodoluminescence detector has 6 imaging modes which can enhance your research and provide you with an important information about your samples. Keep reading if you would like to know what exactly is possible with these modes!

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How to study properties of rare-earth doped materials with cathodoluminescence

Posted by Delmic on Feb 20, 2019 3:09:00 PM

Rare-earth elements, also known as REE, are a group of elements, consisting of scandium, yttrium and 15 lanthanide elements. In the last decades there has been a significant growth in the number of devices that use rare-earth metals. They can be found in a wide range of technological areas and are commonly used in lighting and displays, CT scanners and electron microscopes, (fiber) lasers and amplifiers, anti-cancer agents, fluorescent markers, batteries, magnets and catalysists. Rare-earth elements are crucial for modern-day technology and it is important to study rare-earth doped materials at nanoscale to understand them better.

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Studying formation of sedimentary rocks and crystallization histories of sapphires with the same technique: cathodoluminescence

Posted by Delmic on Dec 18, 2018 1:00:00 PM

Studying formation of sedimentary rocks, observing changes in the chemical composition of zircons, and understanding underlying causes for luminescence of sapphires: all of these are possible with one versatile technique. Cathodoluminescence (CL) is a very useful method of data acquisition in geosciences as it reveals information not readily provided by other techniques.

The excitation of electrons in the sample that produces the light seen through a cathodoluminescence system occurs in specific chemical impurities or intrinsic defects within a geological structure.

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New possibilities for studying (compound) semiconductors with cathodoluminescence and time-resolved imaging techniques

Posted by Delmic on Nov 9, 2018 9:55:14 AM

In the last few decades, electronic devices have become more and more important in our lives, and semiconductors are a crucial part of this technology innovation. A semiconductor is a generic term for materials, normally solid chemical elements, that can conduct current, but only partly. A semiconductor has a conductivity which is between that of an insulator with almost no conductivity, and a conductor with almost full conductivity.

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