Would be the frequency on the phonon. Making the approximation which the frequency is inversely proportional towards the wavelength, ; the total energy is equal for the sum of energies about all energy amount, and also the energy in a specified level is identified by multiplying via the energy level https://www.facebook.com/permalink.php?story_fbid=pfbid02eEhJ4v5cz3EU9sHiY7guKTxXNCFLoe5nE3MKJZAnHV7kBZcVwS1i5SmAvGRP3jo4l&id=61562415773754&__cft__[0]=AZWtIvugvdQrZBHcl7goMSusalMYKN3PKmb20Hrdb42EKXQEg0JPiTj0dGZ6J3b31cUn_C9vypJJzctQH7stc8vYwFOKFfR9Nb6GMKLxbvlLvesfiRCNv5l7YBFE1FBNwND8gnc50yAubkQDP3H9RBpslaDs6nSn8WpmGkuoOqcqDBhlN0T62T0iiOpkOMy72ha4DLztiJ57Pydtitq9xjZE&__tn__=%2CO%2CP-R