Laser, ib qho cuab yeej uas txhawb nqa cov atoms lossis cov molecules kom tawm lub teeb ntawm cov wavelengths tshwj xeeb thiab nthuav tawm lub teeb, feem ntau ua rau lub teeb nqaim heev ntawm cov hluav taws xob. … Laser yog ib tug acronym rau "lub teeb amplification los ntawm lub stimulated emission ntawm hluav taws xob. "
Dab tsi yog luv rau Lub Teeb Pom Kev Zoo los ntawm Kev Tshaj Tawm Tshaj Tawm ntawm Radiation?
Lo lus laser yog cov lus luv rau cov lus "lub teeb nthuav dav los ntawm kev txhawb nqa emission ntawm hluav taws xob." Hauv lwm lo lus, lub laser yog ib lub cuab yeej muaj peev xwm hloov lub teeb lossis hluav taws xob hluav taws xob rau hauv lub teeb tsom, lub zog siab.
Dab tsi yog kev siv lub teeb Amplification los ntawm Stimulated Emission of Radiation?
Nyob rau hauv kev kho hniav kho hniav, ntau hom lasers tau tsim rau kuaj mob (xws li kuaj pom caries) thiab kev siv cov ntawv thov (xws li cov hniav ablation, kab noj hniav npaj, kho dua tshiab, bleaching.).
Thaum twg Lub Teeb Amplification los ntawm Stimulated Emission of Radiation?
Xyoo 1905, Einstein tau tso nws daim ntawv ntawm cov nyhuv photoelectric, uas tau hais tias lub teeb tseem xa nws lub zog hauv chunks, qhov no discrete quantum hais tam sim no hu ua photons. Hauv 1917, Einstein tau npaj cov txheej txheem uas ua rau lasers ua tau, hu ua stimulated emission.
Yuav ua li cas emissions tsim lub teeb amplification?
Qhov kev nthuav dav tseem ceeb ntawm kev tawm dag zog yog tias cov photon induced muaj tib zaus thiab theem raws li qhov xwm txheej photon. … Txawm li cas los xij, qee qhov photons ua rau muaj kev tawm dag zog hauv lub xeev cov atoms, tso lwm cov photon coherent. Nyob rau hauv qhov tseeb, qhov no ua rau optical amplification.
