SPIE Optics + Photonics August 23-27, 2026 USA www.spie.org/op Diffuse reflectance spectroscopy is redefining skin diagnostics through non-invasive, quantitative, and portable analysis – advancing cancer detection, skin health monitoring, and future personalized care. Exploring Photodetectors For Environmental Gas, Flame And Moisture Monitoring Right detector family selection separates stable field instruments from drifting sensors. Get the framework for matching spectral range to application.