Characterization of laser ablated germanium nanoclusters

Authors

S. Vijayalakshmi, Newark College of Engineering
F. Shen, Newark College of Engineering
Y. Zhang, Newark College of Engineering
M. A. George, Newark College of Engineering
H. Grebel, Newark College of Engineering

Document Type

Article

Publication Date

1-1-1999

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.

Identifier

0032591468 (Scopus)

Publication Title

Materials Research Society Symposium Proceedings

ISSN

02729172

First Page

527

Last Page

532

Volume

536

Recommended Citation

Vijayalakshmi, S.; Shen, F.; Zhang, Y.; George, M. A.; and Grebel, H., "Characterization of laser ablated germanium nanoclusters" (1999). Faculty Publications. 16090.
https://digitalcommons.njit.edu/fac_pubs/16090