Laser fluorescence spectroscopy of zinc neutrals originating from laser-irradiated and ion-bombarded zinc sulfide and zinc surfaces

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:5543973

Arlinghaus, H F; Calaway, W F; Young, C E; Pellin, M J; Gruen, D M; Chase, L L

Time-of-flight (TOF) measurements, employing high-resolution laser-induced fluorescence spectroscopy (LFS) as a probe, have been used to measure the yield and velocity distribution of Zn atoms ejected from a ZnS single crystal under irradiation by 308n nm photons. By comparison with the known ion sputtering yield for pure zinc, the absolute yield was determined to be 10/sup 10/ atoms/pulse at a laser fluence of 30 mJ/cm/sup 2/. The velocity distribution of the Zn atoms could be fitted by a Maxwell-Boltzmann distribution, having characteristic temperature of approx.2300/sup 0/K. In addition, Doppler-shift techniques have been combined with TOF measurements in order to separate prompt from delayed emission of ablated atoms, as well as to probe possible molecular or cluster fragmentation. The results obtained suggest the possibility of molecular or cluster fragmentation. The results obtained suggest the possibility of molecular or cluster emission from ZnS. 17 refs., 7 figs.

• Research Organization: Argonne National Lab., IL (USA); Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-31109-ENG-38; W-7405-ENG-48
• OSTI ID: 5543973
• Report Number(s): CONF-8710254-3; ON: DE88006033
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABLATION
CHALCOGENIDES
DOPPLER EFFECT
ELEMENTS
EMISSION SPECTROSCOPY
FLUORESCENCE SPECTROSCOPY
INORGANIC PHOSPHORS
LASER SPECTROSCOPY
METALS
PHOSPHORS
SPECTRAL SHIFT
SPECTROSCOPY
SPUTTERING
SULFIDES
SULFUR COMPOUNDS
TIME-OF-FLIGHT METHOD
ZINC
ZINC COMPOUNDS
ZINC SULFIDES