Analysis of ionic fragments from 308 nm photoablation of polyimide

E. E.B. Campbell; G. Ulmer; K. Bues; I. V. Hertel

doi:10.1007/BF00617855

Analysis of ionic fragments from 308 nm photoablation of polyimide

E. E.B. Campbell, G. Ulmer, K. Bues, I. V. Hertel

Department of Physics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The ionic products from excimer laser photoablation (λ=308 nm) of polyimide (Kapton) film have been studied as a function of fluence. Large ion masses up to about 900a.m.u. are easily observed, the mass distribution depending strongly on the fluence. Velocities of the emitted particles lie between 1400 and 10 000 ms^-1, again dependent on the fluence. A mechanism to explain the high velocities is suggested consisting of ionisation of the surface polymer molecules followed by a Coulomb explosion combined with expansion of the high density gas formed by the photoablation.

Original language	English
Pages (from-to)	543-547
Number of pages	5
Journal	Applied Physics A Solids and Surfaces
Volume	48
Issue number	6
DOIs	https://doi.org/10.1007/BF00617855
State	Published - Jun 1989

Keywords

79.20.Ds
82.80.Ms

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10.1007/BF00617855

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title = "Analysis of ionic fragments from 308 nm photoablation of polyimide",

abstract = "The ionic products from excimer laser photoablation (λ=308 nm) of polyimide (Kapton) film have been studied as a function of fluence. Large ion masses up to about 900a.m.u. are easily observed, the mass distribution depending strongly on the fluence. Velocities of the emitted particles lie between 1400 and 10 000 ms-1, again dependent on the fluence. A mechanism to explain the high velocities is suggested consisting of ionisation of the surface polymer molecules followed by a Coulomb explosion combined with expansion of the high density gas formed by the photoablation.",

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AU - Campbell, E. E.B.

AU - Ulmer, G.

AU - Bues, K.

AU - Hertel, I. V.

PY - 1989/6

Y1 - 1989/6

N2 - The ionic products from excimer laser photoablation (λ=308 nm) of polyimide (Kapton) film have been studied as a function of fluence. Large ion masses up to about 900a.m.u. are easily observed, the mass distribution depending strongly on the fluence. Velocities of the emitted particles lie between 1400 and 10 000 ms-1, again dependent on the fluence. A mechanism to explain the high velocities is suggested consisting of ionisation of the surface polymer molecules followed by a Coulomb explosion combined with expansion of the high density gas formed by the photoablation.

AB - The ionic products from excimer laser photoablation (λ=308 nm) of polyimide (Kapton) film have been studied as a function of fluence. Large ion masses up to about 900a.m.u. are easily observed, the mass distribution depending strongly on the fluence. Velocities of the emitted particles lie between 1400 and 10 000 ms-1, again dependent on the fluence. A mechanism to explain the high velocities is suggested consisting of ionisation of the surface polymer molecules followed by a Coulomb explosion combined with expansion of the high density gas formed by the photoablation.

KW - 79.20.Ds

KW - 82.80.Ms

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EP - 547

JO - Applied Physics A Solids and Surfaces

JF - Applied Physics A Solids and Surfaces

IS - 6

ER -

Analysis of ionic fragments from 308 nm photoablation of polyimide

Abstract

Keywords

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