Accession Number:

ADA076099

Title:

Study of Collisional Redistribution Using Two-Photon Absorption with a Nearly Resonant Intermediate State,

Descriptive Note:

Corporate Author:

NEW YORK UNIV N Y DEPT OF PHYSICS

Personal Author(s):

• Berman ,P. R.
• Liao ,P. F.
• Bjorkholm,J. E.

Report Date:

1979-09-01

Pagination or Media Count:

14.0

Abstract:

We report studies of collision-induced features of the 3S12 yields 3P12 yields 4D32 two-photon absorption in atomic sodium vapor undergoing collisionss with several rare gas perturbers. The results yield the collisional redistribution function which describes the nonresonant excitation of the 3P12 intermediate state. Good agreement with theory is obtained only if effects of 3P12 in equilibrium with 3P32 state-changing collisions are included in the calculations. Results are used to obtain a value for a pressure broadening coefficient in the Na-Kr system. Author

Descriptors:

• *TWO PHOTON ABSORPTION
• *ATOMIC SPECTROSCOPY
• STEADY STATE
• SODIUM
• RAYLEIGH SCATTERING
• RESONANCE RADIATION
• ELECTRON TRANSITIONS
• SPECTRAL LINES
• PARTICLE COLLISIONS
• ATOMIC ENERGY LEVELS
• METAL VAPORS
• COLLISION BROADENING

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE