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Lasers are ubiquitous-from deep space communication to lab on the chip to supermarket product scanning. Although they form an integral part of optics &amp photonics and extensively used in research areas of science and technology to create multibillion dollar industries, the progress in severely limited in the subcontinent due to lack of experimental training in this field. The need of the hour is to have a self-sufficient book containing laser-related concepts readily available to beginners. The book is written keeping undergraduate and graduate students in mind to possibly serve as a textbook. It is also aimed to provide fundamental reference material on ultrafast lasers and photonics for researchers in the field of optics and bioengineering.
Optoelectronics - this is an area in which both electrical current and light are required for the operation of a device. The presence of electronics in the device controls the optical character of the device. Devices that fall into this category are electronic in nature but evolve light. Examples include the light-emitting diodes, solar cells, and display devices in modern equipment, including smartphones. Edison’s bulb may fall into this category as well. Specialized centers are dedicated to this topic worldwide. This research area has immense applications in the photonics industry.
Key Features
Proposed book deals with the basics of lasers.
Contains a chapter dedicated to the required spectroscopy and the one for the line broadening mechanisms.
Special emphasis on the phenomena related to modern ultrafast lasers, and their applications.
Sufficient mathematics, instead of details have been given to be able to understand the topic by the reader.
Basics of lasers, ultrafast lasers, Q-switching and modelocking, characterisation techniques of ultrafast pulses, four wave mixing, semiconductor and fibre lasers, high harmonic generation.
Basics of photonics and lasers
The photon and photonics
Light–matter interaction and the essentials of spectroscopy
Polarization of light
Spontaneous and stimulated emission
The Beer–Lambert law and the gain coefficient
Population inversion with moderate pumping
Pumping mechanisms and types of optical cavity
Line-broadening mechanisms
The Fabry–Pérot resonator
Basic properties of lasers: directionality, brightness, and coherence
ABCD matrices and stability diagrams
Stability conditions according to Gaussian beam analysis
Pulsed lasers and nonlinear optical applications
Laser spiking and Q-switching
Introduction to nonlinear optical phenomena
Second-order susceptibility, phase matching, and applications
Third-order nonlinear optical processes
Mode locking
Characterization of ultrafast laser pulses
Optical phase conjugation
Multiphoton absorption
White-light continuum generation
Semiconductor lasers
Fiber lasers
Coherent radiation obtained using special geometries
Appendix A. Suggested further reading
Appendix B. Luminescence
Appendix C. Physical constants