News

Join an online live demonstration of the SPARC system

April 30, 2019

Join the first online live demonstration of the SPARC system with Delmic product manage Toon Coenen and application specialist Sangeetha Hari. This live session is a unique opportunity to learn about the possibilities of the cathodoluminescence detector, learn about the software and imaging process. The demonstration will take place on May 20th at 11 AM (CEST).

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Energy-momentum cathodoluminescence imaging used for probing topological silicon photonic lattices: new paper

April 23, 2019

The new paper, which was published in Physical Review Letters, studies two-dimensional hexagonal photonic lattices of silicon Mie resonators with a topological optical band structure in the visible spectral range. The local optical density of states is mapped with deep subwavelength resolution, and the results show evidence of topological edge states at the domain walls between topological and trivial lattices.

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Wavelength and angle-resolved (energy-momentum) cathodoluminescence explained in a technical note

April 17, 2019

In order to explain the possibilities of energy-momentum cathodoluminescence technique we prepared a technical note, which is now available for download. This technique, also known as wavelength and angle-resolved cathodoluminescence (WARCL), combines“conventional” angle-resolved CL imaging with hyperspectral CL imaging. Energy-momentum imaging approach opens up new ways for studying optical properties of(nano)materials in wavelength/energy and angle/momentum space in great detail.

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New energy-momentum cathodoluminescence technique explained in the upcoming webinar

April 04, 2019

We are excited to announce that we are preparing the first webinar dedicated to spectrally and angle-resolved cathodoluminescence, an imaging technique also known as lens-scanning energy-momentum (LSEK) cathodoluminescence. This unique technique allows acquiring hybrid multidimensional high-resolution angle-resolved hyperspectral datasets. To put it simply, it uses the principle of angle-resolved imaging but allows users to acquire high resolution datasets both in angle and wavelength, for any given location on the sample. The data gained with energy-momentum cathodoluminescence can be particularly beneficial in the fields of nanophotonics and materials science. 

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