ANNA University Engineering Physics I Notes
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Syllabus:
UNIT II LASERS 9
Introduction – Principle of Spontaneous emission and stimulated emission.
Population inversion, pumping. Einsteins A and B coeffcients - derivation. Types of lasers – He-Ne, CO2 , Nd-YAG, Semiconductor lasers (homojunction &
heterojunction) Qualitative Industrial Applications - Lasers in welding, heat treatment, cutting – Medical applications - Holography (construction & reconstruction).
UNIT III FIBER OPTICS & APPLICATIONS 9
Principle and propagation of light in optical fibres – Numerical aperture and
Acceptance angle - Types of optical fibres (material, refractive index, mode) –
Double crucible technique of fibre drawing - Splicing, Loss in optical fibre –
attenuation, dispersion, bending - Fibre optical communication system (Block
diagram) - Light sources - Detectors - Fibre optic sensors – temperature &
displacement - Endoscope.
UNIT IV QUANTUM PHYSICS 9
Black body radiation – Planck’s theory (derivation) – Deduction of Wien’s
displacement law and Rayleigh – Jeans’ Law from Planck’s theory – Compton effect. Theory and experimental verification – Matter waves – Schrödinger’s wave equation– Time independent and time dependent equations – Physical significance of wave function – Particle in a one dimensional box - Electron microscope - Scanning electron microscope - Transmission electron microscope.
UNIT V CRYSTAL PHYSICS 9
Lattice – Unit cell – Bravais lattice – Lattice planes – Miller indices – d spacing in cubic lattice – Calculation of number of atoms per unit cell – Atomic radius – Coordination number – Packing factor for SC, BCC, FCC and HCP structures –
NaCl, ZnS, diamond and graphite structures – Polymorphism and allotropy - Crystal defects – point, line and surface defects- Burger vector.
Syllabus:
UNIT I ULTRASONICS 9
Introduction – Production – magnetostriction effect - magnetostriction generatorpiezoelectric effect - piezoelectric generator- Detection of ultrasonic waves properties – Cavitations - Velocity measurement – acoustic grating - Industrial applications –drilling, welding, soldering and cleaning – SONAR - Non Destructive Testing – pulse echo system through transmission and reflection modes - A,B and C –scan displays,Medical applications - Sonograms
Introduction – Production – magnetostriction effect - magnetostriction generatorpiezoelectric effect - piezoelectric generator- Detection of ultrasonic waves properties – Cavitations - Velocity measurement – acoustic grating - Industrial applications –drilling, welding, soldering and cleaning – SONAR - Non Destructive Testing – pulse echo system through transmission and reflection modes - A,B and C –scan displays,Medical applications - Sonograms
UNIT II LASERS 9
Introduction – Principle of Spontaneous emission and stimulated emission.
Population inversion, pumping. Einsteins A and B coeffcients - derivation. Types of lasers – He-Ne, CO2 , Nd-YAG, Semiconductor lasers (homojunction &
heterojunction) Qualitative Industrial Applications - Lasers in welding, heat treatment, cutting – Medical applications - Holography (construction & reconstruction).
UNIT III FIBER OPTICS & APPLICATIONS 9
Principle and propagation of light in optical fibres – Numerical aperture and
Acceptance angle - Types of optical fibres (material, refractive index, mode) –
Double crucible technique of fibre drawing - Splicing, Loss in optical fibre –
attenuation, dispersion, bending - Fibre optical communication system (Block
diagram) - Light sources - Detectors - Fibre optic sensors – temperature &
displacement - Endoscope.
UNIT IV QUANTUM PHYSICS 9
Black body radiation – Planck’s theory (derivation) – Deduction of Wien’s
displacement law and Rayleigh – Jeans’ Law from Planck’s theory – Compton effect. Theory and experimental verification – Matter waves – Schrödinger’s wave equation– Time independent and time dependent equations – Physical significance of wave function – Particle in a one dimensional box - Electron microscope - Scanning electron microscope - Transmission electron microscope.
UNIT V CRYSTAL PHYSICS 9
Lattice – Unit cell – Bravais lattice – Lattice planes – Miller indices – d spacing in cubic lattice – Calculation of number of atoms per unit cell – Atomic radius – Coordination number – Packing factor for SC, BCC, FCC and HCP structures –
NaCl, ZnS, diamond and graphite structures – Polymorphism and allotropy - Crystal defects – point, line and surface defects- Burger vector.
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