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PHY 264 — OPTICS

BSc BSc Physics · Kwame Nkrumah University of Science and Technology

Hughens principle, Applications in Young's Interferometer. Fresnel biprism and other apparatus depending on division of the wave front. Theory of coherence; complete coherence, partial coherence and incomplete coherence. Fringe contrast (visibility).. Division of amplitude. Michelson interferometer Circular fringes localised fringes. Index of refraction by an interference method. .Interference involving multiple reflections; Reflection from a plane - parallel film; the wedge film, Newton's rings, Applications, measurement of film thickness Nonreflecting films, sharpness of fringes.. Fabry - Perot interferometer, Chromatic-resolving power. Study of Hyperfine structure and of line shape.. Interference filters. Fresnel and Franhofer Diffraction by the single slit (elementary consideration). The Fresnel kirchhoff integral and its application in the various apertures. Chromatic resolving power of a microscope. The double slit, derivation of the equation for the intensity. Distinction between interference and diffraction. Maxima and Minima. Missing orders.. The diffraction grating, intensity distribution from an ideal grating. Formation of spectra by a grating. Overlapping orders Resolving power of the grating.. Polarisation by reflection, representation of the vibrations in light. Polarising angle and Brewsters law. Polarisation by a pile of plates.. Polarisation by dichroic crystals.. Polarsiation by double refraction, optic axis The Nicol Prism.. Interference of polarised light, quarter and half - wave plates

Credits
2
Level
Level 200

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Course details from Courses for BSc. Physics - Physics.