Tiny camera lens may help link quantum computers to network

Tiny camera lens may help link quantum computers to network

Friday, September 14, 2018 — An international team of researchers led by The Australian National University (ANU) has invented a tiny camera lens, which may lead to a device that links quantum computers to an optical fibre network.

Quantum computers promise a new era in ultra-secure networks, artificial intelligence and therapeutic drugs, and will be able to solve certain problems much faster than today’s computers.

The unconventional lens, which is 100 times thinner than a human hair, could enable a fast and reliable transfer of quantum information from the new-age computers to a network, once these technologies are fully realised.

The device is made of a silicon film with millions of nano-structures forming a metasurface, which can control light with functionalities outperforming traditional systems.

Associate Professor Andrey Sukhorukov said the metasurface camera lens was highly transparent, thereby enabling efficient transmission and detection of information encoded in quantum light.

“It is the first of its kind to image several quantum particles of light at once, enabling the observation of their spooky behaviour with ultra-sensitive cameras,” said Associate Professor Sukhorukov, who led the research with a team of scientists at the Nonlinear Physics Centre of the ANU Research School of Physics and Engineering.

Kai Wang, a PhD scholar at the Nonlinear Physics Centre who worked on all aspects of the project, said one challenge was making portable quantum technologies.

“Our device offers a compact, integrated and stable solution for manipulating quantum light. It is fabricated with a similar kind of manufacturing technique used by Intel and NVIDIA for computer chips.” he said.

The research was conducted at the Nonlinear Physics Centre laboratories, where staff and postgraduate scholars developed and trialled the metasurface camera lens in collaboration with researchers at the Oak Ridge National Laboratory in the United States and the National Central University in Taiwan.

The research is published in Science: https://doi.org/10.1126/science.aat8196 (link becomes live once the embargo lifts).

* Images are available to be downloaded by clicking on the image icons below.

FOR INTERVIEW:

Associate Professor Andrey Sukhorukov
Nonlinear Physics Centre, Research School of Physics and Engineering
ANU College of Science
E: Andrey.Sukhorukov@anu.edu.au

Please note that Associate Professor Sukhorukov is in Italy.

Kai Wang
PhD scholar, Nonlinear Physics Centre, Research School of Physics and Engineering
ANU College of Science
E: kai.wang@anu.edu.au
T: +61 424 106 515

For media assistance, contact the ANU media hotline on +612 6125 7979 or email the ANU Media Team at media@anu.edu.au

Kai Wang holding a sample that has multiple metasurface camera lenses. Image credit: Lannon Harley, ANU
Kai Wang holding a sample that has multiple metasurface camera lenses. Image credit: Lannon Harley, ANU
Kai Wang in the lab. Image credit: Lannon Harley, ANU
Kai Wang in the lab. Image credit: Lannon Harley, ANU
Artist's impression of the meta surface camera lens to image several quantum particles of light at once. Image credit: Kai Wang
Artist's impression of the meta surface camera lens to image several quantum particles of light at once. Image credit: Kai Wang