Nick Van den Broeck, ph.d. student in our research group, has won the young speaker's contest of the Dutch Physical Society. The finals took place during the "Fysica 2015" meeting in Eindhoven, where this Belgian beat our northern neighbors. He presented research on the optical properties of thin layers of metallic hydrogen, an intriguing new allotrope of hydrogen. Research on metallic hydrogen takes place in collaboration with prof. Isaac F. Silvera at Harvard University, who is the first to have succeeded in dissociating molecular hydrogen in a diamond anvil cell via pulsed laser heating at high pressures. Our theoretical work attempts to link the changes in reflectance and transmittance due to the metallization process.