Long-Range Energy Transfer

Observation of long-range dipole-dipole interactions in hyperbolic metamaterials

We show that metamaterials can fundamentally modify the dipole-dipole interactions despite large physical separation between interacting quantum emitters. We demonstrate a two orders of magnitude increase in the near-field resonant dipole-dipole interactions at intermediate field distances (10 times the near field) and observe the distance scaling law consistent with a super-Coulombic interaction theory curtailed only by absorption and finite size effects of the metamaterial constituents. We develop a first-principles numerical approach of many-body dipole-dipole interactions in metamaterials to confirm our theoretical predictions and experimental observations. In marked distinction to existing approaches of engineering radiative interactions, our work paves the way for controlling long-range dipole-dipole interactions using hyperbolic metamaterials and natural hyperbolic two-dimensional materials.


Near Field Spin Photonics

    Our work led to a fundamental understanding of universal spin-momentum locking of light and near-field properties of light's polarization.

Spin-Momentum Locked Forces

    We introduced a universal right handed electromagnetic triplet consisting of electromagnetic momentum, decay and spin.

Quantum Gyro-Electric Phase of Matter

    We have predicted the existence of a new topological phase of matter exhibiting photon spin-1 quantization.