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.
New Photonic Chip Spawns Nested Topological Frequency Comb
In new work, researchers at JQI have combined two lines of research into a new method for generating frequency combs.
Upcoming talks at DAMOP from our lab
The DAMOP Annual Meeting is from June 3 through June 7 in Forth Worth, Texas, and our lab has a couple of talks at the conference. Please see the image for more information.
Upcoming talks at CLEO from our lab and its collaborators
CLEO (Conference on Lasers and Electro-Optics) is May 5-10 in Charlotte, NC, and our lab and its collaborators have several talks. Please see the image for a list.
Article on a new type of microresonator soliton frequency comb published
With a team of international collaborators, we have published an article in Nature Photonics that describes the investigation of a new type of cavity soliton frequency comb.
Researchers develop a new type of frequency comb that promises to further boost the accuracy of time keeping
Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized time keeping, the detection of planets outside of our solar system and high-speed optical communication.
Now, scientists at the National Institute of Standards and Technology (NIST) and their collaborators have developed a new way of creating the combs that promises to boost their already exquisite accuracy and allow them to measure light over a range of frequencies that was previously inaccessible. The extended range will enable frequency combs to probe cells and other biological material.
The new devices, which are fabricated on a small glass chip, operate in a fundamentally different way from previous chip-based frequency combs, also known as microcombs.