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Observation of two-dimensional dynamic localization of light
Alexander Szameit1, Ivan L Garanovich, Matthias Heinrich
1Solid State Institute and Physics Department, Technion, 32000 Haifa, Israel.
Physical Review Letters
|September 28, 2010
Summary
We observed dynamic localization of light in 2D photonic lattices for the first time. This phenomenon suppresses light beam diffraction in hexagonal waveguide arrays, similar to zigzag arrays.
Area of Science:
- Optics and Photonics
- Condensed Matter Physics
- Wave Phenomena
Background:
- Photonic lattices are artificial optical media with periodic structures.
- Waveguide arrays are key components in integrated optics for light manipulation.
- Dynamic localization is a quantum phenomenon with optical analogues.
Purpose of the Study:
- To experimentally observe dynamic localization of light in 2D photonic lattices.
- To demonstrate the suppression of beam diffraction in hexagonal waveguide arrays.
- To investigate the relationship between dynamic localization in hexagonal and zigzag waveguide arrays.
Main Methods:
- Fabrication of hexagonal photonic lattices using weakly coupled waveguides with axis bending.
- Experimental propagation of light beams through the fabricated lattices.
- Analysis of beam diffraction patterns and comparison with theoretical models.
Main Results:
- First experimental observation of dynamic localization of light in 2D photonic lattices.
- Demonstrated suppression of beam diffraction in hexagonal lattices.
- Established a strong relation between dynamic localization in hexagonal and zigzag waveguide arrays.
Conclusions:
- Dynamic localization of light is achievable in 2D photonic lattices.
- Hexagonal waveguide arrays with axis bending can effectively suppress beam diffraction.
- The findings provide insights into light propagation in complex optical structures.
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