An experimental investigation of Hanle resonances using a phase diffusing laser field with variable parameters

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6859463

Smith, S J; Arnett, K

In this paper we describe an experimental investigation of a zero- field level crossing resonance in the observed fluorescence at 555.6 nm resulting from excitation of the /sup 1/S/sub O/ ..-->.. /sup 3/P/sub 1/ transition in transition in Yb/sup 174/ by a linearly polarized laser field. The essential new feature of this investigation is the use of an optical field for which the phase coherence is well-characterized and variable over a wide range. We have developed, and apply here, experimental techniques for synthesizing constant amplitude laser fields with phase/frequency fluctuations which follow Gaussian (normal) statistics and which have spectral dependences which can be varied over a range from nearly Lorentzian to nearly Gaussian profiles. These synthesized fields correspond, to a good approximation, to the so-called phase-diffusion fields described in theoretical studies of the ac Stark effect with Lorentzian and non-Lorentzian laser line shapes, and have been applied previously in several related experimental investigations. 13 refs., 6 figs., 1 tab.

• Research Organization: Colorado Univ., Boulder (USA); National Bureau of Standards, Boulder, CO (USA)
• DOE Contract Number: FG02-85ER13421
• OSTI ID: 6859463
• Report Number(s): DOE/ER/13421-7; CONF-8809135-1; ON: DE88016838
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
CORRELATION FUNCTIONS
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXCITED STATES
FLUCTUATIONS
FLUORESCENCE
FUNCTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LASER RADIATION
LUMINESCENCE
MAGNETIC FIELDS
NUCLEI
POLARIZATION
RADIATIONS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RESONANCE FLUORESCENCE
STABLE ISOTOPES
VARIATIONS
YTTERBIUM 174
YTTERBIUM ISOTOPES