Opto-thermal dynamics of thin-film optical limiters based on the VO2 phase transition

• Published in: Optical materials express Vol. 13; no. 1; p. 41
• Main Authors: Tognazzi, Andrea, Gandolfi, Marco, Li, Bohan, Ambrosio, Gina, Franceschini, Paolo, Camacho-Morales, Rocio, Cino, Alfonso Carmelo, Baratto, Camilla, de Ceglia, Domenico, Neshev, Dragomir, De Angelis, Costantino
• Format: Journal Article
• Language: English
• Published: Washington Optical Society of America 01.01.2023
• Subjects: Continuous radiation; High power lasers; Luminous intensity; Multilayers; Nanofabrication; Numerical models; Optical limiters; Optical properties; Phase change materials; Phase transitions; Sapphire; Substrates; Thermodynamic properties; Thin films; Vanadium oxides

Protection of human eyes or sensitive detectors from high-intensity laser radiation is an important challenge in modern light technologies. Metasurfaces have proved to be valuable tools for such light control, but the actual possibility of merging multiple materials in the nanofabrication process hi...