Properties of high harmonics generated by ultrashort UV laser pulses on solid surfaces

I. B. Földes, J. Bakos, K. Gál, Z. Juhász, M. Á Kedves, G. Kocsis, S. Szatmári, G. Veres

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Second and third harmonics of a 700 fs, 248 nm KrF laser pulse have been generated in laser plasma interactions on solid targets with a maximum focussed intensity of 5 × 1015 W/cm2. Mass-spectroscopic and light scattering diagnostics showed, that the prepulse level originating from the amplified spontaneous emission (ASE) of the amplifier must be kept well below 107 W/cm2, otherwise the formation of a preplasma or photo-evaporation of the target material may perturb the smooth surface. The generated harmonics preferred to propagate into the specular direction, and they appear both for p- and s-polarized laser radiation. An appropriately chosen short prepulse was used to enhance conversion to harmonics with optimizing conditions for resonance absorption.

Original languageEnglish
Pages (from-to)264-269
Number of pages6
JournalLaser Physics
Volume10
Issue number1
Publication statusPublished - Jan 2000

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Plasma interactions
Spontaneous emission
Laser radiation
ultraviolet lasers
solid surfaces
Light scattering
Laser pulses
Evaporation
harmonics
Lasers
pulses
laser plasma interactions
spontaneous emission
light scattering
amplifiers
evaporation
laser beams
scattering
lasers

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

Properties of high harmonics generated by ultrashort UV laser pulses on solid surfaces. / Földes, I. B.; Bakos, J.; Gál, K.; Juhász, Z.; Kedves, M. Á; Kocsis, G.; Szatmári, S.; Veres, G.

In: Laser Physics, Vol. 10, No. 1, 01.2000, p. 264-269.

Research output: Contribution to journalArticle

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