Laser lub teeb zoo tshaj hauv monochromaticity, brightness, directionality, thiab coherence, ua rau nws zoo tagnrho rau precision daim ntaub ntawv. Tsim los ntawm stimulated emissions thiab optical amplification, nws lub zog siab tso zis yuav tsum muaj dej chillers rau kev lag luam ruaj khov thiab ntev.