Theory of time-resolved resonance scattering

✍ Scribed by Jacqueline O. Berg; Charles A. Langhoff; G. Wilse Robinson

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 638 KB
• Volume: 29
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(74)85112-2

✦ Synopsis

A theory is presented that describes the time dependence bP scattering off an &omic or molecti "re~rznce" using tunabli: dye laser pulses. The main conclusion is that theie is n6,e'xponeatially deaying component which depends upon the frequency difference between the exciting pulse and the resonance. In t$e Limit of extremely narrcwbanded excitation, all time resolution is lost, and the usual resonance scattering intensity formulas are obtained. In -the opposite Limit, whe;e the excitation is broadrbanded, formu& descrioing fluorescence dec*ly emerge The time evolution for the case of more than a single resonance can be obtained numerically, but an analytica(expre-ssion is possible for the steady state scattetig amplitude from two resonances, from which exactresonznce F&man formulas can be found.

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