Saturation of three-photon ionization of atomic hydrogen and deuterium at 243 nm
Journal Article
·
· Opt. Lett.; (United States)
Two-photon-resonant, three-photon ionization of atomic hydrogen and deuterium is performed at 243 nm, and the ions are detected by time-of-flight mass spectrometry. The power dependence of the 1S--2S two-photon excitation and one-photon ionization of 2S hydrogen and deuterium are determined. The ionization step saturates at 4 x 10/sup 6/ W/cm/sup 2/. The two-photon step-power dependence varies with laser linewidth, with saturation occurring between 1 x 10/sup 7/ and 3 x 10/sup 7/ W/cm/sup 2/. The extraction electric field in the mass spectrometer does not affect the 2S excitation. Strong signals are recorded at atomic concentrations of 10/sup 5/ atoms/cm/sup 3/. Nonresonant ionization of background gases producing H/sup +/ and D/sup +/ is minimized.
- Research Organization:
- ATandT Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974
- OSTI ID:
- 6590685
- Journal Information:
- Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 14:1; ISSN OPLED
- Country of Publication:
- United States
- Language:
- English
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Wed Dec 31 23:00:00 EST 1986
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CHEMICAL ANALYSIS
DEUTERIUM
ELEMENTS
HYDROGEN
HYDROGEN ISOTOPES
IONIZATION
ISOTOPES
LIGHT NUCLEI
MASS SPECTROSCOPY
MULTI-PHOTON PROCESSES
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PHOTOIONIZATION
QUANTITATIVE CHEMICAL ANALYSIS
SATURATION
SPECTROSCOPY
STABLE ISOTOPES
TIME-OF-FLIGHT METHOD
400102 -- Chemical & Spectral Procedures
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CHEMICAL ANALYSIS
DEUTERIUM
ELEMENTS
HYDROGEN
HYDROGEN ISOTOPES
IONIZATION
ISOTOPES
LIGHT NUCLEI
MASS SPECTROSCOPY
MULTI-PHOTON PROCESSES
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PHOTOIONIZATION
QUANTITATIVE CHEMICAL ANALYSIS
SATURATION
SPECTROSCOPY
STABLE ISOTOPES
TIME-OF-FLIGHT METHOD