Ewald-Oseen extinction theorem

In optics, there's a theorem, oh so grand, It helps us understand, you'll surely understand, About scattering and reflection, refraction too, It's called the Extinction Theorem, it's quite true! In 1916, Ewald and Oseen, They proved this theorem, what a dream! They studied crystals and isotropic media, And found the truth, oh what a great idea! The theorem applies to dielectric objects, In free space, it helps us detect, The way light scatters, oh what a sight, It's like a dance, shining so bright! But the theorem's scope is even wider, It covers bianisotropic media, oh what a rider! From crystals to all kinds of matter, It helps us understand, it's really quite a chatter! So next time you see light scattering away, Remember the Extinction Theorem, it'll brighten your day, Ewald and Oseen, they paved the way, For us to learn and explore, hooray! Random page: Pu'u Kōnāhuanui