What is meant by LASER? What are the characteristics
of light emitted by LASER? Describe the
constraction
and working of Ruby Laser with necessary diagram
How population
inversion is achieved in this
type of
lases? (2012, 14, 16)
Answers
Explanation:
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. ... Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light.
RUBY Laser
A ruby laser is a solid-state laser that uses the synthetic ruby crystal as its laser medium. Ruby laser is the first successful laser developed by Maiman in 1960.
a ruby laser, a single crystal of ruby (Al2O3 : Cr3+) in the form of cylinder acts as a laser medium or active medium. The laser medium (ruby) in the ruby laser is made of the host of sapphire (Al2O3) which is doped with small amounts of chromium ions (Cr3+). The ruby has good thermal properties.
