Quasiphase matched second harmonic generation in ZnSe waveguide structuresmodulated by focused ion beam implantation

Authors
Kuhnelt, M Leichtner, T Kaiser, S Hahn, B Wagner, HP Eisert, D Bacher, G Forchel, A
Citation
M. Kuhnelt et al., Quasiphase matched second harmonic generation in ZnSe waveguide structuresmodulated by focused ion beam implantation, APPL PHYS L, 73(5), 1999, pp. 584-586
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
73
Issue
5
Year of publication
1999
Pages
584 - 586
Database
ISI
SICI code
0003-6951(19990803)73:5<584:QMSHGI>2.0.ZU;2-K
Abstract
Second harmonic generation is investigated in a ZnSe/ZnS0.22Se0.78 waveguid e grown by metal organic vapor phase epitaxy on (001) GaAs substrate. Phase matching is achieved by a first order periodic modulation of the nonlinear susceptibility chi((2)) within the waveguide structure. The modulation is generated by a focused ion beam implantation technique, resulting in a well confined damage of the crystalline structure. The observed phase matching wavelengths corresponding to various modulation periods between 1.6 and 1.9 mu m agree with those predicted by calculations. (C) 1998 American Institu te of Physics. [S0003-6951(98)03531-1].