spectral selectivity

Spectral selectivity refers to a material or device's ability to respond strongly to specific wavelengths (colors) of light while being less sensitive to others. For example, certain filters or sensors only detect particular parts of the light spectrum, such as infrared or ultraviolet, allowing precise targeting or measurement. This property is essential in applications like cameras, sensors, and lighting, where filtering out unwanted wavelengths improves performance, accuracy, and efficiency. In essence, spectral selectivity is about fine-tuning the interaction between light and matter to isolate or emphasize specific colors or energy ranges.