Interactions of wide band-gap single crystals with 248 nm excimer laser radiation. II. NaCl

Journal Article · Sun Aug 15 04:00:00 EDT 1993 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.354719· OSTI ID:6274790

Webb, R L; Jensen, L C; Langford, S C; Dickinson, J T ^[1]

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1. Physics Department, Washington State University, Pullman, Washington 99164-2814 (United States)

The emission of charged and neutral particles from single-crystal NaCl irradiated with 248 nm excimer laser light is studied by means of time-resolved photon spectroscopy and quadrupole mass spectrometry. Cathodo- and photoluminescence spectra and scanning electron microscope (SEM) observations indicate the progressive growth of surface damage during pulsed laser irradiation. SEM observations indicate that substantial fracture occurs prior to the onset of rapid vaporization. The plume is composed of charged particles as well as a high density of excited neutrals, including a number of energetic cluster ions. Fracture and subsequent plastic deformation contribute significantly to defect production and processes of laser desorption and vaporization.

• DOE Contract Number: FG06-92ER14252
• OSTI ID: 6274790
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 74:4; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360600 -- Other Materials
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ABLATION
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
FAILURES
FRACTURES
HALIDES
HALOGEN COMPOUNDS
LASER-PRODUCED PLASMA
LUMINESCENCE
MICROSCOPY
MONOCRYSTALS
PHOTOLUMINESCENCE
PLASMA
PLASMA DIAGNOSTICS
RADIATIONS
SODIUM CHLORIDES
SODIUM COMPOUNDS
SURFACE PROPERTIES
ULTRAVIOLET RADIATION