Advanced Physics-Nagpur

Teaching Scheme
Lectures: 2 Hours/ Week
Tutorial: 1 Hours / Week

Examination Scheme
Theory
T (U) : 40 Marks
T (I) : 10 Marks
Duration of University Exam. : 02 Hours

Unit – I: (07 Hrs)

Lasers & Wave Optics
Spatial and temporal coherence of a light wave, Quantum Transitions: Absorption, Spontaneous
emission & stimulated Emission, Metastable states, Pumping schemes, Principle of laser, Laser
characteristics, Components of a laser, Principle & working of He-Ne, Ruby & Semiconductor
lasers, Applications.

Interference in thin films, Interference in Wedge shape thin film, Newton‟s rings, Anti-reflection
coating, advanced applications of interference in thin film.

Unit – II: (05 Hrs)

Electron Ballistics
Lorentz force, Motion of changed particles in uniform electric and magnetic fields: parallel,
perpendicular and at an acute angle, Effect of electric and magnetic fields on kinetic energy of
charged particle, Crossed electric and magnetic field configurations, Velocity filter, Electrostatic
and magnetostatic deflection.

Unit – III: (06 Hrs)

Electron Optics
Bethe’s law, Electric and Magnetic focusing, Construction & working of Electrostatic lens,
Devices: CRT, CRO, Block Diagram, Function & working of each block, Bainbridge mass
spectrograph, Cyclotron.

Unit – IV: (12 Hrs)

Optical Fiber & Nanoscience
Optical fibers: Propagation by total internal reflection, structure and classification (based on
material, refractive index and number of modes), Modes of propagation in fiber, Acceptance
angle, Numerical aperture, Attenuation and dispersion. Light sources and Detectors.

Applications:
I) As a Sensors – i) Temperature Sensor ii) Pollution / Smoke detector iii) Liquid
level sensor.
II) As a Detectors- i) PIN detector ii) Avalanche Detector.
Introduction to nanoscience and nanotechnology, Classification of nano materials, Synthesis of
Nanomaterials, General idea about physical and chemical methods. e.g; Physical Vapour Deposition and Sol gel method. Comparison of properties of nanomaterials with bulk materials,

Some special nanomaterials:
1) Zeolites, 2) Graphine,

Application of nanomaterials in engineering, Impact of Nanoscience and nanotechnology .

Books recommended:

Text Books:
i) Fundamentals of Physics: David Halliday, Robert Resnick and Jerle Walker, John-Wiley
India(8e, extended)
ii) A text book of Engineering Physics: M. N. Avadhanulu, S. Chand & Co.
iii) Nano The Essentials: Understanding Nanoscience and Nanotechnology, T.Praddep;
TMH Publications.
iv) Introduction to Nanotechnology:Pooly & Owens; Willey Publication
v) Text Book of Optics: Brijlal and Subramanyam (S. Chand and Company)
vi) Laser: M. N. Avadhanulu, S. Chand & Co.

Reference Books:
i) LASERS: Theory and Applications: Thyagarajan K and Ghatak A.K.
ii) Nanomaterials & Nanotechnologies and Design:M.F.Ashby, Paulo Ferreira and Daniel
L.Schodek, Elsevier Publications.
iii) University Physics: Young and Freedman (Pearson Education).
iv) Optics: Jenkins and White (Tata Mcgraw Hill)