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Proceedings Paper

Multipolar second-harmonic generation from films of chalcogenide glasses
Author(s): A. Slablab; K. Koskinen; R. Czaplicki; N. Thachan Karunakaran; I. Sebastian; C. Pradeep Chandran; M. Kailasnath; P. Radhakrishnan; M. Kauranen
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Paper Abstract

Chalcogenide glasses are amorphous semiconductors with a number of interesting properties required for photonic devices. Particularly, their optical properties can be tuned through the change of the glass composition. We investigate second-order nonlinear optical properties of chalcogenide glass (Ge27Se64Sb9) thin films fabricated by thermal evaporation. The strong second-harmonic generation observed for the samples investigated is analyzed as a function of incident polarization. Furthermore, the role of multipole effects in second-harmonic generation is also studied by using two beams at the fundamental frequency. Our results suggest that the higher-multipole effects are present and contribute significantly to the second-harmonic response of chalcogenide the samples.

Paper Details

Date Published: 2 May 2014
PDF: 7 pages
Proc. SPIE 9126, Nanophotonics V, 912621 (2 May 2014); doi: 10.1117/12.2051477
Show Author Affiliations
A. Slablab, Tampere Univ. of Technology (Finland)
K. Koskinen, Tampere Univ. of Technology (Finland)
R. Czaplicki, Tampere Univ. of Technology (Finland)
N. Thachan Karunakaran, Cochin Univ. of Science and Technology (India)
I. Sebastian, Cochin Univ. of Science and Technology (India)
C. Pradeep Chandran, Cochin Univ. of Science and Technology (India)
M. Kailasnath, Cochin Univ. of Science and Technology (India)
P. Radhakrishnan, Cochin Univ. of Science and Technology (India)
M. Kauranen, Tampere Univ. of Technology (Finland)

Published in SPIE Proceedings Vol. 9126:
Nanophotonics V
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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