Lecture 8

Subject matter: - Transmittance function of a grating - Interference - Interferometers - Some applications of interferometry: measuring changes in refractive index, length; gravitational wave detection - Interference of two oblique waves - Lithography with standing waves - Interference of a planar and a spherical wave - Interference of two spherical waves - Diffraction grating revisited - Interference of many waves - Bragg reflection - Fresnel zone plate