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Chaining Atoms Together Yields Quantum Storage

02-17-22

Engineers at Caltech have developed an approach for quantum storage that could help pave the way for the development of large-scale optical quantum networks. "The ability to build a technology reproducibly and reliably is key to its success," says graduate student Andrei Ruskuc. "In the scientific context, this let us gain unprecedented insight into microscopic interactions between ytterbium qubits and the vanadium atoms in their environment." The new system relies on nuclear spins—the angular momentum of an atom's nucleus—oscillating collectively as a spin wave. This collective oscillation effectively chains up several atoms to store information. "Based on our previous work, single ytterbium ions were known to be excellent candidates for optical quantum networks, but we needed to link them with additional atoms. We demonstrate that in this work," says Andrei Faraon, Professor of Applied Physics and Electrical Engineering. [Read the paper] [Caltech story]

Tags: APhMS EE research highlights MedE KNI Andrei Faraon Andrei Ruskuc

Advancing Future Quantum Science Efforts

08-27-20

Five new Department of Energy centers will apply quantum information science to emerging technologies. The centers will develop cutting-edge quantum technologies for use in a wide range of possible applications including scientific computing; fundamental physics and chemistry research; and the design of solar cells and of new materials and pharmaceuticals. Caltech faculty will participate in four of the new science centers: the Quantum Systems Accelerator, led by the Lawrence Berkeley National Laboratory, also known as Berkeley Lab; the Quantum Science Center, led by Oak Ridge National Laboratory; Q-NEXT, led by Argonne National Laboratory; and the Co-design Center for Quantum Advantage, led by Brookhaven National Laboratory. [Caltech story]

Tags: APhMS EE research highlights MedE CMS Oskar Painter KNI Andrei Faraon

Engineered Metasurfaces Replace Adhesive Tape in Specialized Microscope

02-28-18

The latest advance in a new type of optics aimed at improving microscopy started with a game of tennis three years ago between Mooseok Jang a graduate of Professor Changhuei Yang's lab and Yu Horie working with Professor Andrei Faraon. "The hope is that our work will prompt further interest in this area of optics and make this type of microscopy and its advantages feasible for practical, everyday use—not just as a proof of concept," says Josh Brake, a graduate student in Yang's lab who continues to work on the project with Faraon and Yang. [Caltech story]

Tags: EE research highlights Changhuei Yang MedE alumni Andrei Faraon Mooseok Jang APh Yu Horie Josh Brake

The Future is Flat (For Lenses)

12-22-16

Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, and colleagues have developed a system of flat optical lenses that can be easily mass-produced and integrated with image sensors, paving the way for cheaper and lighter cameras in everything from cell phones to medical devices. [Caltech story]

Tags: APhMS research highlights MedE Andrei Faraon

Professor Faraon Receives ONR Young Investigator Award

03-07-16

Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, is a recipient of a 2016 Office of Naval Research (ONR) Young Investigator Award. The objectives of the Young Investigator Program are to attract to naval research outstanding new faculty members, to support their research, and to encourage their teaching and research careers. Professor Faraon’s award is for his proposal entitled, Quantum Transduction Between Optical and Microwave Photons using Rare-Earth-Doped Materials. [Recipient List] [Caltech story]

Tags: APhMS honors MedE Andrei Faraon

New, Ultrathin Optical Devices Shape Light in Exotic Ways

09-03-15

Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, and colleagues have created silicon nanopillars devices capable of manipulating light in ways that are very difficult or impossible to achieve with conventional optical components. The devices are precisely arranged into a honeycomb pattern to create a "metasurface" that can control the paths and properties of passing light waves. Professor Faraon describes, "this new technology is very similar to the one used to print semiconductor chips onto silicon wafers, so you could conceivably manufacture millions of systems such as microscopes or cameras at a time." [Caltech story] [BBC video clip]

Tags: APhMS research highlights MedE Andrei Faraon

New Thin, Flat Lenses Focus Light as Sharply as Curved Lenses

05-08-15

Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, and colleagues have created flat microlenses with performance on a par with conventional, curved lenses. Typically, lenses rely on a curved shape to bend and focus light. But in the tight spaces inside consumer electronics and fiber-optic systems, these rounded lenses can take up a lot of room. The Caltech team’s new flat lenses focus as much as 82 percent of infrared light passing through them. By comparison, previous studies have found that metallic flat lenses have efficiencies of only around a few percent. [Caltech story]

Tags: APhMS research highlights MedE Andrei Faraon

Professor Faraon Receives NSF CAREER Award

02-05-15

Andrei Faraon, Assistant Professor of Applied Physics and Materials Science, has been awarded the National Science Foundation's (NSF) Faculty Early Career Development (CAREER) Award for his 5-year project, “Quantum Light-Matter Interfaces Based on Rare-Earth Ions and Nanophotonics”. The CAREER program is NSF's most prestigious awards for junior faculty members. The level and 5-year duration of the awards are designed to enable awardees to develop careers as outstanding teacher-scholars. Awardees are chosen because they exemplify the role of teacher-scholars through outstanding research, excellent education and the integration of education and research within the context of the mission of their organizations.

Tags: APhMS honors MedE NSF CAREER NSF Andrei Faraon