Photonic crystal Fano laser

ERC grant to research new lasers and quantum devices

Thursday 28 Mar 19
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Jesper Mørk
Professor, Group Leader
DTU Fotonik
+45 45 25 57 65

Professor Jesper Mørk at DTU Fotonik has just received an EUR 2.5 million ERC Advanced Grant to explore the physics and applications of a new class of photonic devices using a resonance phenomenon known as a Fano resonance. 

This physical phenomenon offers opportunity for realizing ultrafast and low-noise nanolasers, optical transistors and quantum devices working at the level of a single photon.

Typically, the resonance of a system is described by a frequency and a lifetime, leading to a Lorentzian lineshape function. If the system instead involves interference between a discrete resonance and a continuum, a Fano lineshape appears with fundamentally different characteristics.

“In our project, the Fano resonance is used to make a novel integrated mirror, enabling realization of Fano lasers, Fano switches and quantum Fano devices. These devices challenge well-accepted paradigms for photonic devices and we will be working to understand the new physics and to develop the necessary nanotechnology to fabricate these microscopic devices. What we’re dealing with here is technological basic research,” says Jesper Mørk.

Fano devices for future data communication
Today an increasing fraction of the global energy consumption is being used for data communication, and photonics operating at very high data rates with ultra-low energy per bit has been identified as a key technology to enable a sustainable growth of capacity demands.

Existing device designs, however, cannot just be scaled down to reach the goals for next-generation integrated devices.

“If we are successful, these research activities may lead to the use of Fano lasers for ultrafast data communication as well as Fano devices for emerging applications in quantum technology,” says Jesper Mørk.

The first to use Fano resonance in a nanolaser
Jesper Mørk and his colleagues from the research group for Quantum and Laser Photonics at DTU Fotonik were the first to suggest a Fano laser for ultrafast modulation and to demonstrate experimentally the unique properties of these lasers, together with Kresten Yvind and other colleagues from the Nanophotonics Section at DTU Fotonik. The research was published in Nature Photonics in 2017 and the Optical Society of America called it one of the most exciting inventions of 2017Read more about the Fano laser.

In order to pursue the ambitious research goals set forth in the ERC Advanced Grant, Jesper Mørk will soon be looking for new people to join his research group.

“To be successful in such a research endeavour, it is absolutely essential to gather the right group of people. I will be looking for experimental and theoretical PhD students and postdocs who are motivated to do research in laser physics, quantum optics and nanotechnology, but also have an interest in solving important problems in information technology”.

About the European Research Council (ERC)

The European Research Council supports frontier research, cross disciplinary proposals and pioneering ideas in new and emerging fields which introduce unconventional and innovative approaches.

The ERC's mission is to encourage the highest quality research in Europe through competitive funding and to support investigator-driven frontier research across all fields of research, on the basis of scientific excellence.

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