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Controlling wave fronts with tunable disordered non-Hermitian multilayers.
Denis V Novitsky1, Dmitry Lyakhov2, Dominik Michels2
1B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Nezavisimosti Avenue 68, 220072, Minsk, Belarus. dvnovitsky@gmail.com.
Scientific Reports
|February 27, 2021
Summary
Researchers developed a new disordered multilayer system for flexible control of light. This non-Hermitian photonic device offers tunable light passage time and wave-front shaping for novel optical applications.
Area of Science:
- Photonics
- Metamaterials
- Non-Hermitian systems
Background:
- Non-Hermitian photonic systems offer unique properties for novel optical effects and light-matter interactions.
- There is a growing need for fast and compact methods to control light propagation.
Purpose of the Study:
- To propose a new architecture unifying disordered metamaterials and non-Hermitian photonics.
- To demonstrate control over light passage time and wave-front shaping using disordered loss-gain multilayers.
Main Methods:
- Unifying disordered metamaterials and non-Hermitian photonics.
- Utilizing disordered loss-gain multilayers.
- Controlling disorder strength via external pump power.
Main Results:
- Demonstrated flexible control of light passage time and wave-front shaping.
- Showed the ability to switch kink formation on/off by altering disorder levels.
- Achieved tunable output intensity using nonlinear loss and gain saturation.
Conclusions:
- The proposed disordered multilayer architecture provides a powerful tool for light control.
- The system's tunable disorder strength makes it a basis for active photonic devices.
- This approach enables novel optical applications through flexible light manipulation.
