Spectral bandwidth refers to the range of wavelengths or frequencies that a particular light source emits. This concept is crucial in understanding both classical and quantum light because it helps define how light interacts with matter, including absorption, emission, and scattering processes. A narrower bandwidth implies that the light is more monochromatic, while a broader bandwidth indicates a mix of various wavelengths, impacting phenomena like coherence and color representation.
congrats on reading the definition of spectral bandwidth. now let's actually learn it.