"It was a wonderful experience interacting with you and appreciate the way you have planned and executed the whole publication process within the agreed timelines.”
Subrat SaurabhAuthor of Kuch Woh Pal
Laser Introduction, Energy Levels and Transition: Introduction, Definition, Properties of laser beams, Concept of coherence, Temporal coherence, Spatial coherence, Longitudinal Coherence length, Transverse Coherence length, Absorption, Spontaneous Emission and Stimulated emission processes with its characteristics, Einstein’s A and B coefficients and Relation between these coefficient.
Laser Amplifiers and Oscillations Population inversion, Meta stable state, Pumping- types, Optical pumping methods, Two, three and four level pumping schemes, Gain in lasers, Gain factor, Optical Cavities/Resonators, Fabry-Perot optical resonator, Loop gain, Gain at threshold, Stability, Stability diagram.
Unit –III Laser component, Principle and Types. Main components of Laser, Principle of Laser action, Introduction to general lasers and their types. Two, Three & Four level Lasers, CW Lasers, Pulsed Lasers, Method of Short pulse generation and its Measurement.
Unit –IV Specific Laser Systems: Atomic gas Lasers – He-Ne laser, Argon Ion Laser; Molecular Gas Lasers- Carbon dioxide laser, excimer laser; Liquid Lasers- Organic dye lasers, Solid Sate Lasers- Ruby lasers, Nd-YAG Laser, Semiconductor diode laser.
Applications and Hazards and Safety Consideration
Dr. Divya Ghildyal
Dr. Divya Ghildyal other books written
Engineering Physics
Energy Science and Engineering
