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Multistability at arbitrary low optical intensities in a metal-dielectric layered structure
A Ciattoni1, C Rizza, E Palange
1Consiglio Nazionale delle Ricerche, CNR-SPIN 67100 L'Aquila, Italy. alessandro.ciattoni@aquila.infn.it
Optics Express
|January 26, 2011
Summary
Optical multistability in thin nonlinear metal-dielectric slabs is demonstrated at low light intensities. This phenomenon, achievable with precise control of light intensity and angle, is robust and feasible.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Nonlinear optical phenomena are crucial for advanced photonic devices.
- Metal-dielectric layered structures offer unique optical properties.
Purpose of the Study:
- To demonstrate optical multistability in subwavelength nonlinear metal-dielectric slabs at low optical intensities.
- To investigate the conditions required for achieving multiple electromagnetic states.
Main Methods:
- Theoretical analysis of nonlinear optical behavior in layered media.
- Full-wave electromagnetic simulations.
Main Results:
- A nonlinear metal-dielectric slab exhibits optical multistability at arbitrarily low optical intensities.
- Multiple electromagnetic states are accessible by simultaneously tuning incident optical intensity and incidence angle.
- The observed phenomenology is proven to be feasible and robust through simulations.
Conclusions:
- Subwavelength nonlinear layered structures can achieve optical multistability with minimal input light.
- Precise control over incident light parameters is key to accessing multiple optical states.
- This research paves the way for low-power nonlinear photonic applications.
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