Pushing the frontiers of tomorrow's health, digital, and sustainable technology
In the Quantum Light Sources group at DTU Electro, we design, simulate and fabricate nano-devices that operate according to the rules of quantum mechanics for application in photonic quantum technologies. Our objective is to develop quantum light sources based on semiconductor quantum dots with near-unity efficiency and photon indistinguishability approaching 100%.
The quantum
world offers outstanding opportunities for information and communication
technology applications. Examples include, among others, the realization of new
quantum computing platforms that outperform any existing super-computing system
in the world. Such a powerful computer would be able to perform incredibly
complex calculations, such as solving logistics problems for transportation and
delivery companies and predict the correct composition of new drugs in
pharmaceutical research.
In the
Quantum Light Sources group, we are trying to realize the indispensable
building blocks for these new quantum technologies, which require to manipulate
and generate individual photon states “on demand”.
We use
advanced numerical tools and quantum-mechanical techniques to accurately design
the electromagnetic modes of the sources and analyze their performance. We
subsequently use state-of-the-art nano-fabrication techniques combined with
optical setups to fabricate and characterize efficient nanophotonic devices
based on our theoretical results.
We are
driven by the aim to understand the physics of quantum devices such as sources
of single indistinguishable photons as well as entangled photon pairs.
Contact
Niels Gregersen Professor, Group Leader ngre@dtu.dk