Controlling photon antibunching from 1D emitters using optical antennas

Area of Science:

• Quantum optics
• Nanotechnology
• Materials science

Background:

• Atom-like 0D quantum emitters typically exhibit single-photon emission.
• Higher dimensional nanostructures often emit multiple photons due to spatially separated excitations.
• Controlling photon statistics in nanostructures is crucial for quantum technologies.

Purpose of the Study:

• To demonstrate that optical nanoantennas can control photon emission statistics in 1D nanostructures.
• To convert 1D nanostructures into efficient single-photon sources.
• To explore the potential of optical antennas for quantum information technology.

Main Methods:

• Utilizing optical nanoantennas to manipulate near-field absorption and emission rates.
• Employing antenna-controlled enhancement of exciton annihilation and radiative recombination.
• Experimentally verifying improved antibunching in carbon nanotube photoluminescence using a metal tip.

Main Results:

• Optical nanoantennas successfully controlled photon emission statistics in 1D nanostructures.
• Demonstrated the conversion of 1D nanostructures into single-photon sources.
• Achieved enhanced antibunching in single carbon nanotubes at room temperature.

Conclusions:

• Optical nanoantennas are effective tools for improving single-photon source performance.
• This technology can enable a wider range of materials for quantum information applications.
• Nanoantenna-based control offers a new pathway for quantum light sources.