Design principles for electrically driven Luttinger liquid-fed plasmonic nanoantennas

Area of Science:

• Condensed Matter Physics
• Materials Science
• Nanophotonics

Background:

• One-dimensional (1D) metals exhibit unique electronic properties as Luttinger liquids.
• Luttinger liquid behavior suppresses quasiparticle excitations, facilitating electron-to-plasmon conversion.
• Optical nanoantennas can couple plasmons to free-space radiation.

Purpose of the Study:

• To propose design principles for 1D metallic Luttinger liquid feeds.
• To outline design strategies for nanoantennas to achieve high radiation efficiency.
• To enable efficient infrared light sources using electrically driven nanoantennas.

Main Methods:

• Theoretical investigation of electron dynamics in 1D Luttinger liquids.
• Design principles for optimizing plasmon injection efficiency.
• Nanoantenna design for efficient coupling of 1D plasmons to photons.

Main Results:

• Demonstrated efficient conversion of injected electrons into infrared plasmons.
• Proposed design guidelines for high-efficiency Luttinger liquid feeds.
• Outlined strategies for nanoantenna design to maximize radiation efficiency.

Conclusions:

• Electrically driven 1D Luttinger liquid-fed nanoantennas are feasible for efficient infrared light generation.
• The proposed design principles can guide experimental realization.
• This work paves the way for novel infrared light sources.