Quantum Optics in Diamond Nanophotonic Chips

Abstract

This report summarizes our recent progress on the development of photonic nanostructures for sensing and information processing. We have developed a nitrogen vacancy (NV) spin qubit-cavity system in the strong Purcell regime in which the spin qubit predominantly interacts with the cavity mode. This system is realized in a single-crystal diamond photonic crystal nanocavity with quality factors (Q) up to 10^4. Furthermore, we measure electron spin coherence times of cavity-coupled NVs of 200 us. We have also developed techniques for NV-based super-resolution imaging and precision sensing, using high-speed parallel readout on a microscope camera; and we have developed techniques for precision clocks based on collective oscillation of ensembles of NVs. We also report on graphene electro-optic devices and sensors.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2014
Accession Number
ADA608951

Entities

People

  • Dirk Englund

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Confocal Microscopy
  • Crystals
  • Detectors
  • Electrical Engineering
  • Electron Microscopes
  • Electron Microscopy
  • Fabrication
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Microscopes
  • Microscopy
  • Optical Properties
  • Optics
  • Photonic Crystals
  • Photonics
  • Quantum Bits

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Systems Analysis and Design

Technology Areas

  • Microelectronics
  • Quantum Computing
  • Quantum Science - Quantum Dots