Nanowire Single-Photon Sources

Welcome to the homepage for the nanowire single-photon source (SPS) activities at DTU Fotonik. Our objective is to develop high-efficiency nanowire-based SPSs for quantum cryptography and for quantum information processing.

A recently discovered screening effect in high-index-contrast low-diameter nanowires is exploited, an effect promising improved tolerance towards the fabrication-induced geometry imperfections currently limiting the efficiency of existing micropillar SPSs.

The project aims at establishing the physical understanding necessary to engineer a nanowire SPS with effiency approaching 100 %.

Recent news:

• NG and TRN start 34092 Nano-Optics fall semester course.
• Proof of concept funding received.
• One-year postdoc grant received from FTP.
• Nanowire SPSs in the media: videnskab.dk (Danish)
• On the cover of Nature Photonics.

The research is headed by   Niels Gregersen, Ph.D. Associate Professor   CV and publication list

This research is supported by the Danish Research Council for Technology and Production Sciences (FTP).