- Lasers are light beams that are powerful enough to travel miles into the sky and cut through lumps of metal.
Characteristics of Lasers
- Superior Monochromatism
- Superior Directivity
- Superior Coherence
- High Output
Uses of Laser
- Cutting tools that employ CO2 lasers are widely used in industries. They are precise, easy to automate and don’t need sharpening, unlike knives.
- We use robot-guided lasers to cut pieces of cloth to make things such as denim jeans than using our bare hands. They are faster, more accurate and improve efficiency and productivity.
- The same precision is of utmost importance in the field of medicine.
- Doctors use lasers for everything from blasting cancerous tumours to correcting defective eyesight.
- The barcode scanner in a grocery store uses a laser to convert a printed barcode into a number that a checkout computer can understand.
- Every time you play a CD or a DVD, a semiconductor laser beam bounces off the spinning disc to convert its printed pattern of data into numbers; a computer chip converts these numbers into movies, music, and sound.
- Lasers are used in fibre optic cables and a technology known as photonics which uses photons of light to communicate.
- The military uses laser-guided weapons and missiles.