We have recently published a new approach for realizing quantum frequency conversion across the very large spectral gap between the visible and telecommunications wavelength bands, through third-order sum and difference frequency generation in microresonators.
Welcome to the Srinivasan Research Group
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.
January 28, 2021
January 26, 2021
We describe a new approach to 3D printing of micro-optical elements on the facets of photonic chips in Optics Express (https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-26-39340&id=444749
December 07, 2020
December 06, 2020
We are happy to announce that new research on an improved coupled-mode theory for high-index-contrast photonic platforms has been published on Physical Review A.
November 09, 2020