The Polygon Physics Team

photo of Polygon Physics' co-founder and president Pascal Sortais


Pascal Sortais is an internationally recognized ion source expert, co-author of ten patents, and innovation awards laureate. His approach illustrates his passion for creating bridges between basic research and industry. In parallel to a career in accelerator physics at CNRS (France), Pascal Sortais has been consultant for various companies, before becoming an entrepreneur. Polygon Physics is his second company.
photo of Gaëtan Beaumont (Mechanical Design at Polygon Physics)

Mechanical design

Thibaut Roger is responsible for the mechanical design of our products, and also interfaces with the local machining companies. Thibaut has a mechanical engineering degree, and work experience in several industry sectors, which has developed his special interest in mechanical design and energy applications. Curious and multifaceted, Thibaut enjoys coming up with solutions and carrying them out from scratch to its final development.
photo of Benjamin Besson (Vacuum and Software at Polygon Physics)

Vacuum and software

Benjamin Besson wears many hats at Polygon Physics and that is exactly what he likes best. His training at the ‘Institut Universitaire de Technologie’ in St. Etienne culminated in a ‘license professionelle’ (industry-oriented Bachelor’s degree) in vacuum & materials technology. A perfect background to take care of the vacuum part of our systems, and contribute to source and electronic equipment assembly and testing. Benjamin is also a major factor in the development of the software that runs our systems and goes to the client.
photo of Grégoire Roussely (R&D at Polygon Physics)


Grégoire Roussely, a native from the nearby Vercors Massif, obtained his PhD from Institut Néel in Grenoble. At Polygon Physics he can combine his interests in high technology products and programming, working on our Research & Development. His focus is primarily on multi beam sputtering: a new ion beam sputter deposition method based on our unique ECR technology. Polygon Physics benefits from Grégoire’s former career as mountain biker at the French national level, which has taught him to be meticulous in his work. You get nowhere without properly prepared equipment.


photo of Merijn Bronsgeest (Product development and Communication at Polygon Physics)

R&D / Business development

Interested in interactions between atoms and charged particles, but also those between people, Merijntje Bronsgeest combines product development and communication at Polygon Physics. With a PhD degree from Delft University of Technology (Netherlands) she worked as a materials scientist on the US east coast, before arriving in Grenoble. Her experience with charged particle sources & optics is at your service.
photo of Elisabeth LaBarre (Polygon Physics administration)


Elisabeth Labarre embodies the backbone of Polygon Physics. She processes the orders and also takes care of shipping and export. Within Polygon Physics she manages everything related to finance, ranging from supplier payments to accounting to pay slip distribution. Her slogan : « on va y arriver ! ».