Comprehensive study of thermal optical coefficient for enhanced design of anti-thermal optical devices

This study investigates the thermal optical coefficient (TOC) of Si, SiNx, SiO2, and TiO2, establishing a comprehensive database across temperatures (20°C-80°C) and wavelengths (400nm-1800nm). This dataset informs the design of anti-thermal optical devices. For instance, utilizing TOC disparities at 1550nm, we developed an anti-thermal quarter-wave plate optical mirror with Si and TiO2. This innovative approach harnesses material-specific thermal responses, showcasing potential applications in designing reliable optical platforms. Our research contributes not only to understanding TOC variations but also provides a practical foundation for advancing anti-thermal optical technologies.