Characterization of laser ablated germanium nanoclusters

S. Vijayalakshmi, F. Shen, Y. Zhang, M. A. George, H. Grebel

Research output: Contribution to journalConference articlepeer-review

Abstract

Morphological characterization and the nonlinear optical properties of laser ablated germanium nanoclusters are discussed in this paper. Laser ablated films contain micron sized droplets that are composed of nanoclusters. The clusters have cubic and tetragonal symmetry. Results from TEM, AFM, and XRD are presented for the surface characterization. Nonlinear absorption is observed at very low light intensities and nonlinear absorption and refraction are seen at peak light intensities of 18 KW/cm2 at γ = 532 nm. The estimated change in refractive index is 0.05 at these intensity levels.

Original languageEnglish (US)
Pages (from-to)527-532
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume536
StatePublished - 1999
EventProceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA
Duration: Nov 30 1998Dec 3 1998

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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