Epsilon-near-zero plasmonic waveguides to enhance nonlinear coherent light-matter interactions
arXiv:2001.03826 · doi:10.1117/12.2320011
Abstract
We demonstrate a way to coherently control light at the nanoscale and achieve coherent perfect absorption (CPA) by using epsilon-near-zero (ENZ) plasmonic waveguides. The presented waveguides support an effective ENZ response at their cut-off frequency, combined with strong and homogeneous field enhancement along their nanochannels. The CPA conditions are perfectly satisfied at the ENZ frequency, surprisingly by a subwavelength plasmonic structure, resulting in strong CPA under the illumination of two counter-propagating plane waves with appropriate amplitudes and phases. In addition , we investigate the nonlinear response of the proposed ENZ plasmonic configuration as we increase the input intensity of the incident waves. We demonstrate that the CPA phenomenon can become both intensity- and phase-dependent in this case leading to new tunable all-optical switching and absorption devices.
References in corpus (15)
- A Perfect Metamaterial Absorber
- Coherent Perfect Absorbers: Time-reversed Lasers
- PT-symmetry breaking and laser-absorber modes in optical scattering systems
- PT-symmetric laser-absorber
- Entanglement of two qubits mediated by one-dimensional plasmonic waveguides
- Coherent perfect absorbers: linear control of light with light
- Tunable mid-infrared coherent perfect absorption in a graphene meta-surface
- Optical Tunneling through Arbitrarily-Shaped Plasmonic Channels and Sharp Bends
- Simultaneous Realization of Coherent Perfect Absorber and Laser by Zero-Index Media with both Gain and Loss
- Coherent control of the optical absorption in a plasmonic lattice coupled to a luminescent layer
- Tunable nonlinear coherent perfect absorption with epsilon-near-zero plasmonic waveguides
- Perfect photon absorption in nonlinear regime of cavity quantum electrodynamics
- Controlling collective spontaneous emission with plasmonic waveguides
- Light-controlled perfect absorption of light
- Gap solitons with null-scattering