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• Second-order Processes
  <td style="text-align: right; width: 33%">[[Structure-Property Relationships| Next Topic]]</td> ...of zero. The design therefore must include both arranging for the desired electronic properties, but also configuring the molecule so that those molecules will
  25 KB (3,935 words) - 09:10, 20 October 2016
• Lasers
  ...band. The ions then lose vibrational energy and drop to the bottom of the band which is the upper laser level. The laser transition then occurs to a vibra Between electronic energy levels of atoms
  32 KB (5,477 words) - 15:51, 10 August 2010
• Perturbation Theory
  ...al to use the sum-over states expression because it gives an idea of which electronic states matter. Also, frequency dependence can easily be introduced. The sam ...the same. This allows one to deal with materials that have a much smaller band gap, especially if the input frequency is in the IR.
  46 KB (7,539 words) - 14:19, 5 August 2011

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