Measurement of energy penetration depth of subpicosecond laser energy into solid density matter

Journal Article · Mon Jul 29 04:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.105430· OSTI ID:5688953

Zigler, A; Burkhalter, P G; Nagel, D J ^[1]; Rosen, M D ^[2]; Boyer, K; Gibson, G; Luk, T S; McPherson, A; Rhodes, C K ^[3]

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1. Naval Research Laboratory, Washington, DC 20375 (USA)
2. Lawrence Livermore Laboratory, Livermore, California 94550 (USA)
3. University of Illinois at Chicago, P. O. Box 4348, Chicago, Illinois 60680 (USA)

The energy penetration depth characteristic of the interaction of intense subpicosecond ({similar to}600 fs) ultraviolet (248 nm) laser radiation with solid density material has been experimentally determined. This was accomplished by using a series of ultraviolet transmitting targets consisting of a fused silica (SiO{sub 2}) substrate coated with an 80--600 nm layer of MgF{sub 2}. The measurement of He-like and H-like Si and Mg lines, as a function of MgF{sub 2} thickness, enabled the determination of the energy penetration depth. It was found that this depth falls in the range of 250--300 nm for a laser intensity of {similar to}3{times}10{sup 16} W/cm{sup 2}. Based on numerical simulations, it is estimated that solid density material to a depth of {similar to}250 nm is heated to an electron temperature of {similar to}500 eV.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5688953
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:5; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
360605 -- Materials-- Radiation Effects
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
DENSITY
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEATING
LASER RADIATION
LAYERS
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SPECTRA
ULTRAVIOLET RADIATION