Structural changes in GaAs induced by ultrafast (fs) laser pulses

L. Nánai, R. Vajtai, Cs Beleznai, J. Remes, S. Leppävuori, Thomas F. George

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Ultrafast changes in the crystal structure of GaAs induced by intense femtosecond laser pulses are detected and investigated. Atomic force microscopy and Raman microprobe analysis of the laser-treated area show centrosymmetric (disordered) features which are different from the original zinc-blend structure of the GaAs lattice. The frozen-in structure shows evidence for a special heat transfer from the laser-induced crater to the boundary, namely the heat has been transferred ballistically by a high-density electron-hole plasma.

Original languageEnglish
Pages (from-to)1808-1811
Number of pages4
JournalJournal of Materials Research
Volume13
Issue number7
Publication statusPublished - Jul 1998

Fingerprint

Ultrafast lasers
Laser pulses
Lasers
pulses
Ultrashort pulses
lasers
Carrier concentration
Zinc
Atomic force microscopy
Crystal structure
Heat transfer
Plasmas
craters
zinc
heat transfer
atomic force microscopy
heat
crystal structure
gallium arsenide
Hot Temperature

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Nánai, L., Vajtai, R., Beleznai, C., Remes, J., Leppävuori, S., & George, T. F. (1998). Structural changes in GaAs induced by ultrafast (fs) laser pulses. Journal of Materials Research, 13(7), 1808-1811.

Structural changes in GaAs induced by ultrafast (fs) laser pulses. / Nánai, L.; Vajtai, R.; Beleznai, Cs; Remes, J.; Leppävuori, S.; George, Thomas F.

In: Journal of Materials Research, Vol. 13, No. 7, 07.1998, p. 1808-1811.

Research output: Contribution to journalArticle

Nánai, L, Vajtai, R, Beleznai, C, Remes, J, Leppävuori, S & George, TF 1998, 'Structural changes in GaAs induced by ultrafast (fs) laser pulses', Journal of Materials Research, vol. 13, no. 7, pp. 1808-1811.
Nánai L, Vajtai R, Beleznai C, Remes J, Leppävuori S, George TF. Structural changes in GaAs induced by ultrafast (fs) laser pulses. Journal of Materials Research. 1998 Jul;13(7):1808-1811.
Nánai, L. ; Vajtai, R. ; Beleznai, Cs ; Remes, J. ; Leppävuori, S. ; George, Thomas F. / Structural changes in GaAs induced by ultrafast (fs) laser pulses. In: Journal of Materials Research. 1998 ; Vol. 13, No. 7. pp. 1808-1811.
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