Units:-
Unit- I
Geometrical Optics and Interference
- Introduction.
- Cardinal points of an optical system.
- Equivalent focal length of coaxial lens system.
- Interference of light.
- Thin films.
- Expression for fringe width.
- Newton's rings.
Unit-II
Diffraction of light
- Introduction.
- Fresnel diffraction.
- Fraunhoffer diffraction.
- Difference between Fresnel and fraunhoffer diffraction.
- Fresnel's assumption.
- Fresnel half period zones.
- Zone plate.
- Construction.
- Comparison of the zone plate with convex lens.
- Fraunhoffer diffraction due to double slit.
- Plane diffraction grating.
- Elementary theory of grating.
- Maximum number of orders available with grating.
- Determination of wavelength of light by grating (normal incident method).
- Resolution of images.
- Rayleight's criteria for resolution.
- Resolving power of grating.
Unit-III
Polarization of light.
- Consept of polarization.
- Optic axis.
- Double refraction.
- Phase retardation plates.
- Nicol prism.
- Plane, circulary and elliptically polarised light.
- Half shade polarimeter.
- Blue colour of the sky.
Unit-IV
Laser
- Introduction
- Absorption
- Spontaneous Emission
- Stimulated emission
- Pumping.
- Introduction of master
- Laser
- Ruby laser ( solid state laser )
- Helium- Neon laser
- Semiconductor laser
- Holography.
Unit- V
Fiber optics
- Introduction
- Total internal reflection
- Structure of optical fibre
- Classification of optical fibre
- Propagation of light wave in an optical fibre
- Acceptance angle and numerical aperture
- Dispersion
- Fiber losses
- Fiber optic communication
- Advantages of optical fibre
- Application of optical fibre.
Unit-VI
Renewable energy sources
- Introduction
- Various energy sources
- Solar energy
- Solar energy storage
- Solar photovoltaic systems
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