Company history

The story of Beamfox began in 2014 when Leonardo Midolo and Søren Stobbe were developing novel quantum nanocomponents at the Niels Bohr Institute in Copenhagen. With the increasing complexity of their devices, their requirements for electron-beam lithography kept growing. By 2014, they had hit a main roadblock. Although electron-beam lithography is the state-of-the-art method for high-resolution lithography, the method is inherently limited by backscattering of electrons, leading to unwanted exposures and deformed nanostructures. This is known as proximity errors and with no satisfactory solution available, Leonardo decided to take matters in his own hands: he created an algorithm that corrects proximity errors. The algorithm quickly became a workhorse for the photonics research at the Niels Bohr Institute. In 2016, Leonardo and Søren teamed up with Anders Esbensen and founded Beamfox Technologies to develop our first product: Beamfox Proximity.


Beamfox Technologies develops and commercializes software solutions for proximity error correction in the R&D market. For too long, proximity errors have limited researchers in many areas of nanotechnology. Beamfox Proximity provides a simple and user-friendly interface to our state-of-the-art proximity error correction algorithm. In everything we do, we take the process engineer’s perspective to make proximity error correction simpler, easier, and faster than ever before.


Leonardo Midolo, CEO

Leonardo is a young scientist and entrepreneur with a passion for nanotechnology, photonics, and software. Leonardo holds an MSc in physics from the University of Turin, a PhD from the Eindhoven University of Technology, and has worked for several years at the Niels Bohr Institute in Copenhagen where he is currently employed as Assistant Professor. He has 10 years’ experience in fabrication of nanophotonic circuits. He is the Chief Executive Officer (CEO) of Beamfox Technologies ApS and implemented the proximity correction code used in Beamfox Proximity.


Anders Lynge Esbensen, CTO

Anders is an expert in software development with more than a decade of experience. He holds an MSc degree in solid-state physics from the Niels Bohr Institute. Anders has worked for several years with scientific computing, embedded software development, network stacks, cryptography, microchips for radio communication, algorithm development, and more. He has extensive experience in managing software projects and heads the software development at Beamfox.


Søren Stobbe, CSO

Søren is an expert in nanotechnology, semiconductor physics, and photonics. He has worked at the Niels Bohr Institute, California Institute of Technology, and is currently Associate Professor at the Technical University of Denmark. He holds an MSc in physics, a PhD in Engineering, and a Pasteur Diploma from Harvard Business School. He is a co-author on numerous papers, including many in Nature, Science, Reviews of Modern Physics, and Physical Review Letters, holds 4 patents, and co-founded two companies including Beamfox Technologies.