Admissions

BITSAT-2011

Birla Institute of Technology & Science, Pilani invites students for online tests for admission to B.E. (Honors), B. Pharm. (Honors), M.Sc. (Honors) and M.Sc. (Tech.).

LASER

Active medium of laser

When energy is given to laser medium (solid, liquid or gas), then only a small fraction of laser medium shows lasing action. This part of

LASER

Components of a Laser

Three main components of laser device are: a)      Active medium: For example in ruby laser, the active medium is aluminum oxide doped with .05 percent

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