One form of phenomenon can be reduced by using a graded-index profile instead of a step-index profile; that form of this phenomenon is termed "intermodal" or "multimodal."
One form of phenomenon can be reduced by using a graded-index profile instead of a step-index profile; that form of this phenomenon is termed "intermodal" or "multimodal." This phenomenon can be quantified using a number calculated using three Fraunhofer lines and symbolized V-sub-d; that number is named for Abbe. Group velocity can be calculated by differentiating a "relation" named for this phenomenon. This phenomenon occurs when a medium's (*) index of refraction is dependent on the wavelength, thus causing a non-coherent light beam to separate since Snell's law implies the different wavelengths refract at different angles. For 10 points, name this optical phenomenon which explains how a prism splits white light into a rainbow.
One form of phenomenon can be reduced by using a graded-index profile instead of a step-index profile; that form of this phenomenon is termed "intermodal" or "multimodal."
dispersion [accept more specific answers like "optical dispersion" or "chromatic dispersion" or "intermodal dispersion"; prompt on refraction]