ZIB

Hits per page

hits 1 - 2 | 2 hits

Sorting

Electronic Resource

Measurement of hypersonic velocities resulting from the laser-induced breakdown of aerosols using an excimer laser imaging system (1989)

Schaub, S. A. ; Alexander, D. R. ; Poulain, D. E. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 60 (1989), S. 3688-3691

add to mindlist on the mindlist

Details

ISSN: 1089-7623

Source: AIP Digital Archive

Topics: Physics , Electrical Engineering, Measurement and Control Technology

Notes: In this article we describe a dual-pulse excimer-laser-based imaging system used in the determination of ejected material velocities resulting from the interaction of KrF laser radiation (λ=248 nm, pulse width FWHM=17 ns, I≈1011 W/cm2) with 20-μm aluminum particles under vacuum (P=10−5 Torr) conditions. Material velocities measured 200–400 ns after arrival of the incident pulse ranged from 450 to 1200 m/s.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1141074

Permalink

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

Electronic Resource

Interactions of intense ultraviolet laser radiation with solid aerosols (1990)

Poulain, D. E. ; Alexander, D. R. ; Barton, J. P. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 67 (1990), S. 2283-2288

add to mindlist on the mindlist

Details

ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Characterizations of the interaction of intense ultraviolet laser radiation (λ=248 nm) with small solid aerosols are presented. Interaction dynamics, velocity measurements of expelled material, and thresholds for plasma formation are presented for aluminum, calcium fluoride, glass, silicon carbide, and tungsten particles. An excimer laser operating with a krypton fluoride gas mixture was used to irradiate small solid aerosol particles (≈5–50 μm) under atmospheric and vacuum conditions down to 10−5 Torr. Focused laser radiation intensities varied from 107 W/cm2 to a maximum of 2×1011 W/cm2. Interactions of the laser radiation with the solid aerosols were recorded in real time by an ultraviolet laser imaging system. Velocities between 250 and 2000 m/s were measured for material ejected from particles undergoing laser interaction. Laser intensity thresholds for visible plasma emission ranged from a maximum of 650 MW/cm2 for aluminum to a minimum of 59 MW/cm2 for tungsten. Thresholds for plasma formation were determined to be relatively independent of ambient pressure.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.345522

Permalink

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

hits 1 - 2 | 2 hits