Brillouin L. Wave Propogation in Periodic Structures. Electric Filters and Crystal Lattices

McGraw-Hill Book Company, 1946. — 247 p.Some readers may be surprised or even disturbed at the mix-ture of problems assembled in this book. These problems actually extend from electrical engineering to electromagnetism and ,vave mechanics of the spinning electron, but the link connecting this variety of problems "rill soon be discovered in their common mathematical background. Waves al,vays behave in a similar ,yay, ,vhether they are longitudinal or transverse, elastic or electric. Scientists of the last century al,vays - kept this idea in mind. When Lord Kelvin built up his model for a dispersive medium or ,vhen Lord Rayleigh discovered radiation pressure, they never failed to try the same methods again and again on all conceivable types of ,vaves. This general philosophy of "rave propagation, forgotten for a time, has been strongly revived in the last decade and represents the backbone of this book.