Emission redistribution from a quantum dot-bowtie nanoantenna

Voltage-Controlled Entanglement between Quantum- Dot Molecule and its Spontaneous Emission Fields via Quantum Entropy

The time evolution of the quantum entropy in a coherently driven threelevel quantum dot (QD) molecule is investigated. The entanglement of quantum dot molecule and its spontaneous emission field is coherently controlled by the gat voltage and the intensity of applied field. It is shown that the degree of entanglement between a three-level quantum dot molecule and its spontaneous emission fields...

Large single-molecule fluorescence enhancements produced by a bowtie nanoantenna

Owing to the size mismatch between light and nanoscale objects such as single molecules, it is important to be able to control light–molecule interactions1–4. Plasmonic nanoantennas create highly enhanced local fields when pumped resonantly, leading to increased Raman scattering5, but whether fluorescence enhancement occurs depends upon a variety of factors. Although sharp metal tips6 and collo...

Photon emission from a cavity-coupled double quantum dot.

We study a voltage biased InAs double quantum dot (DQD) that is coupled to a superconducting transmission line resonator. Inelastic tunneling in the DQD is mediated by electron phonon coupling and coupling to the cavity mode. We show that electronic transport through the DQD leads to photon emission from the cavity at a rate of 10 MHz. With a small cavity drive field, we observe a gain of up to...

Bowtie plasmonic nanoantenna arrays for polarimetric optical biosensing

We report on the first polarimetric plasmonic biosensor based on arrays of bowtie nanoantennas. Using the Finite Element Method (FEM) the phase retardation between the components of light polarized parallel and perpendicular to the axis of the nanoantennas is studied. After optimizing them for high volumetric sensitivity at a wavelength of 780 nm, sensitivities ~5 rad/RIU are obtained, correspo...

Fabrication and Applications of Pillar Bowtie Nanoantenna Arrays by Abdul