Laser ke eng, hona e qapiloe ke mang?
Context:Laser ke mochine o hlahisang leseli ka mokhoa oa ho eketsa matla a mahlo o thehiloeng ho hlahisoeng ha mahlaseli a motlakase. Lentsoe la laser ke khutsufatso e simolohileng e le khutsufatso ea khanya e matlafatsoang ke ho khantša mahlaseli. Laser ea pele e hahiloe ka 1960 ke Theodore Maiman ho Hughes Research Laboratories, e ipapisitse le mosebetsi oa thuto ea Charles H. Townes le Arthur Leonard Schawlow.  Laser e fapane le mehloli e meng ea leseli ka hore e hlahisa leseli le lumellanang. Ho lumellana ha sebaka ho etsa hore laser e tsepamise maikutlo sebakeng se thata, e leng se lumellang likopo tse kang ho itšeha ka laser le lithography. Khokahano ea sebaka e boetse e lumella mahlaseli a laser hore a lule a le masesaane libakeng tse hole (collimation), e leng se lumellang lits'ebetso tse kang lipontšo tsa laser le lidar (ho lemoha leseli le ho fihla hole). Li-laser li ka boela tsa e-ba le nako e telele e lumellanang, e leng se li lumellang ho hlahisa leseli le nang le ponahalo e fokolang haholo. Ka lehlakoreng le leng, nako e lumellanang e ka sebelisoa ho hlahisa mahlaseli a khanyang a makhutšoanyane haholo a nang le ponahalo e pharaletseng empa nako e le khutšoanyane joaloka femtosecond.  Li-laser li sebelisoa ho li-drive tsa li-disc tsa optical, li-printer tsa laser, li-scanner tsa li-barcode, lisebelisoa tsa ho latellana ha DNA, fiber-optic, le puisano ea mahala ea optical, semiconductor chip manufacturing (photolithography), ho buoa ka laser le kalafo ea letlalo, ho itšeha le ho tjheseletsa lisebelisoa, lisebelisoa tsa sesole le tsa ts'ebetsong ea molao bakeng sa ho tšoaea liphofu le ho lekanya sebaka le lebelo, le lipontšong tsa mabone a laser bakeng sa boithabiso. Li-laser tsa semiconductor tse botala ho isa haufi le UV le tsona li sebelisitsoe sebakeng sa li-diode tse hlahisang leseli (LEDs) ho hlasimolla fluorescence e le mohloli oa leseli le lesoeu. Sena se lumella sebaka se senyenyane haholo sa ho ntša khanya ka lebaka la mahlaseli a maholo a laser'me se qoba ho theoha ha mabone a LED; lisebelisoa tse joalo li se li ntse li sebelisoa lifofaneng tse ling tsa koloi.
Laser ke sesebelisoa se ntšang leseli le tsoang mohloling oa mahlaseli a motlakase. Laser ea pele e hahiloe ka 1960 ke Theodore Maiman ho Hughes Research Laboratories, e thehiloe mosebetsing oa thuto ea Charles H. Townes le Arthur Leonard Schawlow.  Li-laser li ntša khanya ea mofuta o itseng. Leseli le lumellanang. Ho lumellana ho ka lekanngoa sebakeng kapa ka nako. Ho lumellana ha sebaka ho etsa hore mahlaseli a laser a lule a le masesaane libakeng tse hōle. Ho lumellana ha nako ho ka sebelisoa ho hlahisa mahlaseli a khanyang a khutšoanyane haholo.  Mehlala e meng ea tšebeliso ea li-laser ke li-drive tsa li-disc, li-printer tsa laser, li-scanner tsa barcode, fiber optics le photolithography