Related Experiment Videos
Observation of mutually trapped multiband optical breathers in waveguide arrays
D Mandelik1, H S Eisenberg, Y Silberberg
1Department of Physics of Complex Systems, the Weizmann Institute of Science, 76100 Rehovot, Israel. daniel.mandelik@weizmann.ac.il
Physical Review Letters
|July 15, 2003
Summary
Researchers directly observed novel Floquet-Bloch breathers in waveguide arrays. These unique solitons, a superposition of different bands, exhibit oscillatory behavior and novel properties explained by band structure.
Area of Science:
- Nonlinear optics
- Condensed matter physics
- Waveguide optics
Background:
- Waveguide arrays support the propagation of light.
- Solitons are self-reinforcing wave packets that maintain their shape.
- Floquet-Bloch states describe wave phenomena in periodically driven or structured systems.
Purpose of the Study:
- To directly observe and characterize a new class of breathers in waveguide arrays.
- To investigate the properties and behavior of these novel coherent structures.
Main Methods:
- Utilizing multiphoton fluorescence for direct observation.
- Employing waveguide arrays to support light propagation.
- Analyzing the behavior in terms of band structure and discrete soliton properties.
Main Results:
- Direct observation of a new class of breathers, termed Floquet-Bloch breathers.
- These breathers are identified as coherent superpositions of Floquet-Bloch solitons from different bands.
- Observed oscillatory behavior along the spatial propagation axis and novel properties.
Conclusions:
- The study demonstrates the existence and direct observation of Floquet-Bloch breathers.
- The behavior of these breathers is consistent with theoretical predictions based on band structure and discrete soliton physics.
- This work opens new avenues for exploring complex light dynamics in structured optical media.