On Chip Manipulation of Single Photons from a Diamond Defect

TL;DR

This paper demonstrates on-chip manipulation of single photons emitted from a diamond defect using integrated waveguide devices, advancing photonic quantum information technology.

Contribution

It introduces a reconfigurable integrated waveguide device that coherently manipulates single photons from a diamond defect, showing wave-particle duality in a photonic chip.

Findings

Observation of wave-like interference patterns.

Detection of sub-Poissonian autocorrelation functions.

Verification of coherent single-photon manipulation.

Abstract

Operating reconfigurable quantum circuits with single photon sources is a key goal of photonic quantum information science and technology. We use an integrated waveguide device comprising of directional couplers and a reconfigurable thermal phase controller to manipulate single photons emitted from a chromium related colour centre in diamond. Observation of both a wave-like interference pattern and particle-like sub-Poissionian autocorrelation functions demonstrates coherent manipulation of single photons emitted from the chromium related centre and verifies wave particle duality.