Project QPhoton
High-Q Semiconductor Nanostructures for Single Photon Emission, Detection and Manipulation
The goal of the project is to:
* Establish a semiconductor technology platform, which enables reliable single photon experiments;
* Realize single photon devices and to test their potential for system applications.
The major application areas within the frame of the project are:
* Quantum key distribution (QKD);
* Quantum metrology (QM);
* Optical data processing (ODP).
Key devices for these applications in the framework of the project are:
* Single photon source (SPS);
* Single photon detector (SPD);
* Optical buffers based on electromagnetic induced transparency (EIT).
The devices will be developed for operation in the wavelength range of 1 - 1.3 µm.
Approaches for realization of the devices:
* Single devices for QKD and QM approach;
* Integrated multi-functional devices on the single photon level for ODP applications.
Complementary roads for:
* Exploration of the interaction of single particles (photons and electrons) in semiconductor nanostructures;
* Realization of semiconductor based single photon devices.
These roads are based on the same fabrication technologies and use self-assembled quantum dots embedded in a microcavity. Each of them has specific advantages for different applications:
* High-Q microcavity pillars with emission perpendicular to the substrate plane (Advantages: e.g., vertical access for excitation and photon emission, high direct fibre coupling efficiency, robust technology for single devices)
* High-Q microcavities realised in photonic-crystal membranes with in-plane emission (Advantages: e.g., potential for large scale integration and ultimate miniaturization, more favourable for the realisation of optical buffers by EIT due to the possibility to use waveguides with a very low group velocity)
The consortium combines leading European research laboratories from universities, public research institutes and the industry with complementary expertise in nanostructure technology, optoelectronic devices and quantum physics:
Project Partners:
* (coordinator) Universität Kassel, Institute of Nanostructure Technologies & Analytics, Germany
* Universität Würzburg, Technische Physik, Germany
* Thales Research & Technology, France
* Alcatel-Thales III/V Lab, France
* Commissariat à d'Energie Atomique, France
* Research Center DTU, Technical University of Denmark, Denmark
* Kungl. Tekniska Högskolan, Department of Microelectronics and Information Technology (IMIT), Sweden
* Technion, Israel Institute of Technology, Israel
The goal of the project is to:
* Establish a semiconductor technology platform, which enables reliable single photon experiments;
* Realize single photon devices and to test their potential for system applications.
The major application areas within the frame of the project are:
* Quantum key distribution (QKD);
* Quantum metrology (QM);
* Optical data processing (ODP).
Key devices for these applications in the framework of the project are:
* Single photon source (SPS);
* Single photon detector (SPD);
* Optical buffers based on electromagnetic induced transparency (EIT).
The devices will be developed for operation in the wavelength range of 1 - 1.3 µm.
Approaches for realization of the devices:
* Single devices for QKD and QM approach;
* Integrated multi-functional devices on the single photon level for ODP applications.
Complementary roads for:
* Exploration of the interaction of single particles (photons and electrons) in semiconductor nanostructures;
* Realization of semiconductor based single photon devices.
These roads are based on the same fabrication technologies and use self-assembled quantum dots embedded in a microcavity. Each of them has specific advantages for different applications:
* High-Q microcavity pillars with emission perpendicular to the substrate plane (Advantages: e.g., vertical access for excitation and photon emission, high direct fibre coupling efficiency, robust technology for single devices)
* High-Q microcavities realised in photonic-crystal membranes with in-plane emission (Advantages: e.g., potential for large scale integration and ultimate miniaturization, more favourable for the realisation of optical buffers by EIT due to the possibility to use waveguides with a very low group velocity)
The consortium combines leading European research laboratories from universities, public research institutes and the industry with complementary expertise in nanostructure technology, optoelectronic devices and quantum physics:
Project Partners:
* (coordinator) Universität Kassel, Institute of Nanostructure Technologies & Analytics, Germany
* Universität Würzburg, Technische Physik, Germany
* Thales Research & Technology, France
* Alcatel-Thales III/V Lab, France
* Commissariat à d'Energie Atomique, France
* Research Center DTU, Technical University of Denmark, Denmark
* Kungl. Tekniska Högskolan, Department of Microelectronics and Information Technology (IMIT), Sweden
* Technion, Israel Institute of Technology, Israel
