The mechanism for continuum polarization in laser induced breakdown spectroscopy of Si(111)

John S. Penczak, Yaoming Liu, Richard D Schaller, Daniel H. Rich, Robert J. Gordon

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Polarization of the plasma luminescence produced by both nanosecond and femtosecond laser ablation of Si(111) was analyzed under different conditions of fluence and detection geometry. It is shown that the luminescence is partially polarized and is directed in the plane of the crystal. The time evolution of the plasma emission signal was also investigated with the use of a streak camera. The mechanism for polarization is proposed to be preferential reflection of s-polarized light (i.e., light polarized normal to the plane of laser incidence) by the melted surface, in agreement with the Fresnel equations. Earlier reports of much stronger polarization are shown to be erroneous.

Original languageEnglish
Pages (from-to)3-10
Number of pages8
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume74-75
DOIs
Publication statusPublished - Aug 2012

Fingerprint

Laser induced breakdown spectroscopy
laser-induced breakdown spectroscopy
Light polarization
Polarization
continuums
polarized light
Luminescence
polarization
luminescence
Plasmas
Streak cameras
streak cameras
Laser ablation
Ultrashort pulses
laser ablation
fluence
incidence
Crystals
Geometry
Lasers

Keywords

  • Polarization-resolved laser-induced breakdown spectroscopy
  • PRLIBS
  • Silicon ablation

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Spectroscopy

Cite this

The mechanism for continuum polarization in laser induced breakdown spectroscopy of Si(111). / Penczak, John S.; Liu, Yaoming; Schaller, Richard D; Rich, Daniel H.; Gordon, Robert J.

In: Spectrochimica Acta - Part B Atomic Spectroscopy, Vol. 74-75, 08.2012, p. 3-10.

Research output: Contribution to journalArticle

Penczak, John S. ; Liu, Yaoming ; Schaller, Richard D ; Rich, Daniel H. ; Gordon, Robert J. / The mechanism for continuum polarization in laser induced breakdown spectroscopy of Si(111). In: Spectrochimica Acta - Part B Atomic Spectroscopy. 2012 ; Vol. 74-75. pp. 3-10.
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