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Updated: Jul 13, 2026
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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Gap solitons in a nonlinear quadratic negative-index cavity
Michael Scalora1, Domenico de Ceglia, Giuseppe D'Aguanno
1Charles M. Bowden Research Facility, AMSRD-AMR-WS-ST, US Army RDECOM, Redstone Arsenal, Alabama 35898, USA.
Summary
We predict gap solitons in nonlinear negative index cavities. Intense pump pulses shift the band edge, enabling weak second harmonic pulse transmission and soliton formation via cascading.
Area of Science:
- Nonlinear optics
- Metamaterials
- Photonics
Background:
- Negative index materials exhibit unique photonic band structures.
- These structures allow for field localization and enhancement.
- Quadratic nonlinearities in such cavities are key to novel phenomena.
Purpose of the Study:
- To predict and theoretically investigate gap solitons in a quadratic Fabry-Pérot negative index cavity.
- To explore the role of cascading and nonlinear effects in soliton formation.
- To analyze the generation of dark and bright solitons.
Main Methods:
- Theoretical prediction and analysis of gap soliton formation.
- Modeling nonlinear optical phenomena in negative index cavities.
- Investigating cascading and self-phase modulation effects.
Main Results:
- An intense pump pulse can dynamically shift the cavity band edge.
- This shift enables transmission of a second harmonic pulse, forming a gap soliton.
- Cascading leads to pulse compression and resembles third-order nonlinear processes.
Conclusions:
- Gap solitons can exist in nonlinear quadratic negative index cavities.
- Both nonlinear polarization (dark soliton) and nonlinear magnetization (bright soliton) can generate solitons.
- The findings offer potential for efficient energy conversion and novel optical devices.
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