期刊
APPLIED PHYSICS LETTERS
卷 96, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3459975
关键词
electric domains; lithium compounds; optical harmonic generation; photonic crystals
资金
- Spanish MICINN [MAT2007-64686]
- Comunidad de Madrid [PHAMA-P2009/MAT-1756]
A two-dimensional periodic arrangement of alternating ferroelectric domains in LiNbO(3), with asymmetric domain duty cycle has been used to demonstrate that counterpropagating beams along the polar axis can generate disparate second harmonic patterns, which are nonsymmetrical with respect to the source and the point of observation. These findings provide alternative routes to generate dissimilar light-matter interaction processes in two-dimensional structures assembled onto polar surfaces, including metals for plasmonics or biological compounds. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3459975]
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