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Category: Photonic & Quantum Devices

Integrated photonics promises to transform a wide range of applications including optical communication, quantum information processing, and biosensing. Integrated photonics combines photonic signal transmission, processing, and possible conversion to/from an electrical signal on a nanofabricated chip. These nanoscale photonic circuits are not only smaller, but also faster and more efficient compared to traditional electronic circuits. NanoES research in this area is geared towards large-scale integrated networks of photonic devices for cutting edge optical communication and quantum computing as well as single photonic devices for biosensing in health-related diagnostics.

A new kind of chip for quantum technology

photonic chip

Today, we are living in the midst of a race to develop a quantum computer, one that could be used for practical applications. This device, built on the principles of quantum mechanics, holds the potential to perform computing tasks far beyond the capabilities of today’s fastest supercomputers. Quantum computers and other quantum-enabled technologies could foster significant advances in areas such as cybersecurity and molecular simulation, impacting and even revolutionizing fields such as online security, drug discovery and material fabrication.

Researchers put a new twist on graphite

In a new Nature paper, a team led by UW researchers reports that it is possible to imbue graphite — the bulk, 3D material found in No. 2 pencils — with physical properties similar to graphite’s 2D counterpart, graphene. Not only was this breakthrough unexpected, the team also believes its approach could be used to test whether similar types of bulk materials can also take on 2D-like properties. If so, 2D sheets won’t be the only source for scientists to fuel technological revolutions. Bulk, 3D materials could be just as useful.

Reimagining optics for smartphones and other devices

UW ECE and Physics Associate Professor Arka Majumdar and UW ECE postdoctoral scholar Johannes Fröch are part of an international research team helping to make high-quality, color cameras smaller and lighter for mobile platforms, such as next-generation smartphones, drones, and point-of-care medical devices. The team recently developed a miniature camera that uses an innovative hybrid optical system over 100 times smaller than its commercial counterpart.

Next-generation data centers within reach thanks to new energy-efficient switches

In a paper published online July 4 in Nature Nanotechnology, a team led by University of Washington scientists reported the design of an energy-efficient, silicon-based non-volatile switch that manipulates light through the use of a phase-change material and graphene heater. The exceptional performance of their switch could help advance both information technology and quantum computing.

Lasers trigger magnetism in atomically thin quantum materials

Researchers have discovered that light — from a laser — can trigger a form of magnetism in a normally nonmagnetic material. This magnetism centers on the behavior of electrons “spins,” which have a potential applications in quantum computing. Scientists discovered that electrons within the material became oriented in the same direction when illuminated by photons from a laser. By controlling and aligning electron spins at this level of detail and accuracy, this platform could have applications in quantum computing, quantum simulation and other fields. The experiment, led by scientists at the University of Washington, the University of Hong Kong and the Pacific Northwest National Laboratory, was published April 20 in Nature.