ばいちょ(売価調査)、価格比較とネットでのお買い物を楽に

内容説明 Based on more than 30 years of research on differential theories of gratings， this book describes developments in differential theory for applications in spectroscopy， acoustics， X-ray instrumentation， optical communication， information processing， photolithography， high-power lasers， high-precision engineering， and astronomy. Introducing the Fast Fourier Factorization approach to improve the convergence of a truncated series， the book examines multilayers， stacked gratings， crossed gratings， photonic crystals， and isotropic and anisotropic materials; techniques and examples in grating design; and Maxwell equations in a truncated Fourier space.