Cavity optomechanical device
We are interested in the physics and engineering of nanophotonic devices in the context of quantum information science, metrology, communications, and sensing. We use nanofabrication technology to develop engineered geometries that strongly enhance light-matter interactions, such as parametric nonlinear optical processes, coupling to quantum emitters, and acousto-optic effects. We study the basic device-level physics and tailor devices for specific applications, and our research generally involves computational modeling, nanofabrication, and optoelectronic and quantum photonic characterization. Recent topics have included quantum frequency conversion, single-photon and entangled-photon generation, microresonator frequency combs, optical parametric oscillators, and cavity electro-optomechanical transducers.
More generally, nanophotonic systems offer us the ability to study interesting physics in a controllable way, using platforms that are inherently suitable for the development of new technologies. Our labs are at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD, and the Joint Quantum Institute at the University of Maryland in College Park.
Integrated Quantum Photonics
Motivation:
Photonics is likely to play an important role in future quantum technologies for computing, communications, sensing, and metrology.
Research
Integrated Quantum Photonics
We are interested in the device-level development and system-level application of integrated photonics technologies for quantum communications, computing, sensing, and metrology. Devices under current development including single-photon and entangled-photon pair sources and quantum frequency converters.
Nonlinear Nanophotonics
Collaborators and Sponsors
Collaborators:
We are fortunate to work with many excellent researchers across the world. A partial list of recent collaborators is below; while only the Principal Investigator names are listed, they of course represent groups composed of outstanding students and postdocs that are the true engine behind all of the work.
Nonlinear Nanophotonics
Encoded Silicon Qubits: A High-Performance & Scalable Platform for Quantum Computing
For quantum computers to achieve their promise, regardless of the qubit technology, significant improvements to both performance and scale are required. Quantum-dot-based qubits in silicon have recently enjoyed dramatic advances in fabrication and control techniques. The “exchange-only” modality is of particular interest, as it avoids control elements that are difficult to scale such as microwave fields, photonics, or ferromagnetic gradients. In this control scheme, the entirety of quantum computation may be performed using only asynchronous, baseband voltage p
Kristiana Ramos
Research Areas:
Integrated photonics design/fab/test
Kartik Srinivasan
Kartik is a Fellow of the JQI and the NIST Microsystems and Nanotechnology Division. He received his undergraduate and graduate degrees in Applied Physics from Caltech and worked there as a postdoctoral scholar before moving to NIST in 2007. He joined the JQI in 2019.
Research Areas:
- Integrated photonics design/fab/test
- Integrated quantum photonics
- Nanoscale electro-optomechanical transducers
- Nonlinear nanophotonics
Edgar Perez
Edgar Perez was a graduate student working on different aspects of quantum photonic integrated circuits, including single-photon sources, nonlinear nanophotonics, and direct laser writing for interconnects. He received his PhD in Physics in May 2024 and is now working at IonQ. He Received his B.A. in physics from Reed College in Portland, Oregon. His undergraduate thesis studied chaos and bifurcations in the monopole ion trap.
Research Areas:
Grégory Moille
Gregory Moille is a Assistant Research Scientist working at both the NIST and UMD campuses. He received his M.S. in Physics and Photonics from Grenoble Institut National Polytechnique, France. He received his Ph.D. in Physics from Paris Saclay University, France. His doctoral research focused on the non-linear dynamics of photonic crystal cavities made of III-V materials, as well the fabrication and improvement of these devices.