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

Conference · Mon Feb 01 00:00:00 EST 1988

OSTI ID:5184081

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 308 nm photons. By comparison with the known ion sputtering yield for pure zinc, the absolute yield was determined to be 10/sup 10/ atomspulse at a laser fluence of 30 mJcm/sup 2/. The velocity distribution of the Zn atoms could be fitted by a Maxwell-Boltzmann distribution, having a characteristic temperature of 2360)degree)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 emission from ZnS. 17 refs., 7 figs.

• Research Organization: Argonne National Lab., IL (USA); Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48; W-31109-ENG-38
• OSTI ID: 5184081
• Report Number(s): UCRL-98168; CONF-8710165-13; ON: DE88008037
• Resource Relation: Conference: Boulder damage symposium, Boulder, CO, USA, 26 Oct 1987
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ZINC SULFIDES
PHOTOEMISSION
ABLATION
ATOMS
FLUORESCENCE SPECTROSCOPY
LASER RADIATION
MONOCRYSTALS
ZINC
CHALCOGENIDES
CRYSTALS
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
EMISSION SPECTROSCOPY
INORGANIC PHOSPHORS
METALS
PHOSPHORS
RADIATIONS
SECONDARY EMISSION
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
ZINC COMPOUNDS
360605* - Materials- Radiation Effects