Therearethreewaysthatradiatinglightcaninteractwithmatter (a)Listthose ...

ThereÂ areÂ threeÂ waysÂ thatÂ radiatingÂ lightÂ canÂ interactÂ withÂ matter.Â (a)ListÂ thoseÂ processesÂ andÂ IllustrateÂ eachÂ processesÂ usingÂ simpleÂ twoÂ levelÂ system.Â (b)Â whichÂ oneÂ isÂ theÂ basisÂ ofÂ lasing?Â (c)Â InÂ thatÂ (lasing)Â process,Â explainÂ whyÂ emittedÂ photonÂ hasÂ theÂ sameÂ phase,Â polarizationÂ andÂ directionÂ asÂ theÂ excitingÂ photon.

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Physics

ThereÂ areÂ threeÂ waysÂ thatÂ radiatingÂ lightÂ canÂ interactÂ withÂ matter.Â (a)ListÂ thoseÂ
processesÂ andÂ IllustrateÂ eachÂ processesÂ usingÂ simpleÂ twoÂ levelÂ system.Â (b)Â whichÂ
oneÂ isÂ theÂ basisÂ ofÂ lasing?Â (c)Â InÂ thatÂ (lasing)Â process,Â explainÂ whyÂ emittedÂ photonÂ
hasÂ theÂ sameÂ phase,Â polarizationÂ andÂ directionÂ asÂ theÂ excitingÂ photon.

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3.6 Ratings (390 Votes)

a The three processes are absorption reflection and transmission Absorption can be illustrated in the following way Consider a 2level system with an electron say in the lower state energetically Then an incoming photon can interact with the electron and if enough energy is available to the electron due See Answer

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