Internship | Metasurface based Polarization Scramblers for Space Instruments

Radiometric instruments have different detection sensitivities for different light polarization states. To avoid losing the photons associated to a signal with a polarization for which the instrument is less sensitive, a polarization scrambler (a device for light depolarization) is positioned at its entrance, therefore making the instrument able to detect the signal independently of its polarization. ​​​​​​​ The implementation of scramblers with “traditional” optical components results in bulky/complex devices. On the contrary, the use of nanopatterned metasurfaces could considerably simplify the realization of a scrambler with a consequent reduction of very important factors for space technology like volume, weight and costs.

The student will undertake the following activities:

• Get familiar with the concept of polarization scramblers and their current state-of-the-art for space instruments.
• Study the theory and get introduced to the design of optical nanopatterned metasurfaces.
• Assess different concepts of metasurface based scramblers.
• After the selection of a preferred solution, he will proceed at its design/optimization, using electromagnetic modelling tools available at TNO.

During the internship project, student will be assisted by TNO staff members working on optical metasurfaces and space instruments.

The candidate should have a good background knowledge of Electromagnetic Theory and Optics.

The candidate should preferably have some experience with:

• commercial electromagnetic modelling tools (e.g. ANSYS HFSS and/or ANSYS LUMERICAL and/or CST STUDIO and/or COMSOL).
• programming in MATLAB/PHYTON.

This internship is best suited for MSc final projects, with a duration of at least 9 months.

You want to work on the precursor of your career; a work placement gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your work placement and be given the scope for you to get the best out of yourself. Naturally, we provide suitable work placement compensation.

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference. Because with every innovation you contribute to tomorrow’s world. Read more about TNO as an employer.

At TNO we encourage an inclusive work environment, where you can be yourself. Whatever your story and whatever unique qualities you bring to the table. It is by combining our unique strengths and perspectives that we are able to develop innovations that make a real difference in society. Want to know more? Read what steps we are taking in the area of diversity and inclusion.

After the first CV selection, the application process will be conducted by the concerning department. TNO will provide a suitable internship agreement. If you have any questions about this vacancy, you can contact the contact person mentioned below.

Students must reside in the Netherlands before the start and also throughout the internship or graduation project at TNO.