Products by your request

Do you have a project in mind but no system on the market is capable of doing what you need? The Delmic development team can make anything possible! Here are some of the most interesting and challenging non-standard projects we have accomplished throughout the years. Make sure to reach out to us if you want us to help you.

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Development tailored to your request

Our customers choose us for multiple reasons: trust, our expertise in the cathodoluminescence field, and of course our easy-to-use and powerful systems. But above all, because our priority is to help our customers to advance their research. That's why in the past few years, we have completed several non-standard requests: systems that are unique and customized based on the specific request.

Keep reading below to learn what these systems are capable of and how our customers are using them.

Non-standard projects

NanoSAM interface and mirror stage for UHV

One of the first customized CL systems was installed at Helmholtz Zentrum Dresden. The customer's microscope was operating at Ultra High Vacuum (UHV), where traditionally SEMs operate at High Vacuum (HV). Therefore, we developed different vacuum interfaces required compatible with UHV. As a result, the complete system can be baked out at temperatures higher than 80^oC.

How did we complete it? We used a 3DOF motorized UHV stage from UHV Design and designed a flange with a mirror arm to go on this stage. Due to the construction of the stage, stronger stepper motors were used. The standard mirror stage controller was replaced by a stepper driver with more power. Software control for this stepper driver was integrated in ODEMIS (our open-source software) to allow for the same control and alignment as with the standard mirror stages that come with the SPARC system.
Streak camera integration

The first time-resolved cathodoluminescence system was installed at Braunschweig University. It was requested that the system has a full spectral resolution, and the streak camera was the only way to do that with sufficient time resolution.

A special support arm was made to be able to hold the extra weight of the streak camera, both underneath the SPARC Spectral and on the SEM itself. The streak camera mount allowed for vertical alignment of the input slit of the streak camera with the CL signal. A sliding rail allowed for exchanging the input optics of the streak camera, to optimize the spectral range.

The system is now used to do time-resolved experiments on semiconductors (including LED materials).
Read publication: Time-resolved cathodoluminescence investigations of AlN:Ge/GaN nanowire structures
30-degree parabolic mirror

The customer at Braunschweig University also needed a customized parabolic mirror to image samples under an angle and inspect 3D structures with CL. Therefore, we designed and developed a special version of the parabolic mirror.
Read more: SPARC Spectral standard modules
Polarization analyzer

The first polarization analyzer was installed at the University of Reims. The first tests were done by our close collaborator, AMOLF institute. For this new SPARC module, we redesigned the complete optical path to fit the polarization optics (a quarter wave plate and a linear polarizer) in the collimated part of the CL signal. The control of the optics, acquisition and analysis were fully integrated in the ODEMIS software. The module and software now allow for automatic acquisition of the 6 different polarizations.
Inverted mirror and TEM Grid sample holder

The customers from University of Kiel requested a system capable of measuring the transmitted CL from a thin sample. A mirror bracket was designed to be able to mount the parabolic mirror upside down on the stagebox arm. A special sample holder for a TEM grid was designed so that the parabolic mirror could be located below the sample.