The device which emits light with the help of processes such as optical
amplification which is based on the stimulated emission of
electromagnetic radiation is termed as a laser. They are classified into
high energy lasers and short pulse lasers. They are used in weapons,
laser printers, barcode scanners, DNA sequencing instruments, optical
disk drives, laser surgery, etc. High energy lasers are used in weapons.
The lasers that emit light in the form of optical pulses, and this light
is not emitted in a continuous mode are referred as pulsed lasers. This
book traces the progress of this field and highlights some of its key
concepts and applications. The various advancements in lasers are
glanced at and their applications as well as ramifications are looked at
in detail. Researchers and students in this field will be assisted by
this book.