publication . Article . 2001

Absorption and the dimensionless overlap integral for two-photon excitation

Gregory J. Fiechtner; James R. Gord;
Open Access
  • Published: 01 Mar 2001
Abstract The interaction of an absorption line and a resonant laser is often modeled using a spectral overlap integral. Previous investigators have modified the traditional overlap integral to obtain a dimensionless overlap integral that affords a more practical interpretation. Unique to the derivation of the modified integral is the treatment of the laser-spectral-irradiance profile — its area is normalized to equal the spectral full-width at half-maximum. In this paper, the modified laser spectral irradiance is applied to obtain a dimensionless overlap integral for multi-photon absorption, including the case of two-photon absorption. Close attention is given t...
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free text keywords: Spectroscopy, Atomic and Molecular Physics, and Optics, Radiation, Dimensionless quantity, Atomic physics, Physics, Spectral line, Orbital overlap, Flux, Laser-induced fluorescence, Wavenumber, Distribution function, Laser, law.invention, law
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