菲涅尔反射和折射的方程 Fresnels equations for reflection and refraction.ppt

Fresnels Equations for Reflection and Refraction;Definitions: Planes of Incidence and the Interface and the polarizations;Shorthand notation for the polarizations;Fresnel Equations;The Tangential Electric Field is Continuous In other words: The total E-field in the plane of the interface is continuous. Here, all E-fields are in the z-direction, which is in the plane of the interface (xz), so: Ei(x, y = 0, z, t) + Er(x, y = 0, z, t) = Et(x, y = 0, z, t);The Tangential Magnetic Field* is Continuous In other words: The total B-field in the plane of the interface is continuous. Here, all B-fields are in the xy-plane, so we take the x-components: –Bi(x, y=0, z, t) cos(qi) + Br(x, y=0, z, t) cos(qr) = –Bt(x, y=0, z, t) cos(qt) *Its really the tangential B/m, but were using m = m0;Reflection and Transmission for Perpendicularly (S) Polarized Light;Reflection Transmission Coefficientsfor Perpendicularly Polarized Light;Simpler expressions for r┴ and t┴;Fresnel Equations—Parallel electric field;Reflection Transmission Coefficientsfor Parallel (P) Polarized Light;Simpler expressions for r║ and t║;Reflection Coefficients for an Air-to-Glass Interface;Reflection Coefficients for a Glass-to-Air Interface;Transmittance (T);Reflectance (R);Reflectance and Transmittance for anAir-to-Glass Interface;Reflectance and Transmittance for aGlass-to-Air Interface;Reflection at normal incidence;Windows look like mirrors at night (when you’re in the brightly lit room) One-way mirrors (used by police to interrogate bad guys) are just partial reflectors (actually, aluminum-coated). Disneyland puts ghouls next to you in the haunted house using partial reflectors (also aluminum-coated). Lasers use Brewster’s angle components to avoid reflective losses:;Phase Shift in Reflection (for Perpendicularly Polarized Light);Phase Shift in Reflection (Parallel Polarized Light);Phase shifts in reflection (air to glass);Phase shifts in reflection (glass to air);Pha