Ac Stark splitting in multiphoton excitation of atomic hydrogen in flames: Abnormal peak asymmetry due to pressure broadening

Journal Article · Thu May 01 04:00:00 EDT 1986 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.33.3602· OSTI ID:6019072

Lau, A M.F.

A theory of ac Stark (or Autler-Townes) splitting occurring in double optical resonances, one of which is a two-photon transition is developed. Both laser bandwidth and collisional broadening effects are included. Theoretical results are in excellent agreement with Goldsmith's observation of two-peaked structures in the multiphoton excitation spectra of atomic hydrogen in atmospheric-pressure flames. This is believed to be the first study demonstrating that the peak asymmetry in an ac Stark doublet can be reversed due to pressure broadening.

• Research Organization: Sandia National Laboratories, Livermore, California 94550
• OSTI ID: 6019072
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 33:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ASYMMETRY
ATOMS
DOUBLE RESONANCE METHODS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLAMES
HYDROGEN
LINE BROADENING
MULTI-PHOTON PROCESSES
NONMETALS
PRESSURE EFFECTS
RADIATIVE DECAY
SPECTRA
STARK EFFECT