https://wiki.devclub.in/index.php?action=history&feed=atom&title=PYL123 2026-04-09T12:48:52Z Revision history for this page on the wiki MediaWiki 1.45.1 https://wiki.devclub.in/index.php?title=PYL123&diff=1847&oldid=prev 2026-03-04T10:17:32Z

<p>Creating course page via bot</p> <p><b>New page</b></p><div>{{Infobox Course<br /> | code = pYL123<br /> | name = Optics and photonics-I<br /> | credits = 4<br /> | credit_structure = 3-1-0<br /> | pre_requisites = <br /> | overlaps = <br /> }}<br /> <br /> == pYL123 : Optics and photonics-I ==<br /> Geometrical Optics: Fermat&#039;s Principle, Ray equation and its solutions. Applications in fibre optics, mirage formation, etc. Wave Propagation: Review of Maxwell&#039;s equations and propagation of waves, Plane polarized light. Reflection and refraction of e. m. wave, Brewster angle; total internal reflection and evanescent waves. Reflection by a conducting medium. Anisotropic Media: Plane waves in anisotropic media, Birefringence, Uniaxial crystals; Analysis of polarized light; some polarization devices. Interference: Interference by division of wavefront and division of amplitude; Phase change on reflection, Stoke&#039;s relations; Reflecting and nonreflecting films; Colors of thin films. Michelson interferometer; Fabry-Perot interferometer and etalon, some applications. Diffraction: Fresnel and Fraunhofer diffraction. Single slit, circular aperture; limit of resolution. Double slit, Diffraction grating, Resolving power. Fresnel half-period zones and the zone plate. Diffraction of a Gaussian beam. Fourier Optics: Fourier transform operation spatial frequency and transmittance function, spatial-frequency filtering, Phase contrast microscope. Holography: Principle of holography, On-axis and Off-axis hologram recording and reconstruction, types of hologram and some applications.</div>

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