The rays that Einstein created using microscopic waves were named 'mesers'.
- Later in May 1960, Theodore Mayman, a scientist at the Hughes Research Laboratories in the state of California, USA, produced the first laser using a synthetic ruby crystal.
- Lasers are produced from some crystals using light energy. Similarly, chemical lasers are also produced by passing high pressure current. Its use is laser shows in various events.
- Lasers are sent through optical fibers for transmission
- Lasers are also used for price checking in grocery stores, for accurate land measurements, for understanding the nature of internal defects, for cutting thick sheets of iron.
