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Microcombs – chip-scale devices that generate and measure frequencies of light with exquisite accuracy – have transformed timekeeping and boosted optical
Frequency combs — specialized lasers that act like rulers to measure light — are now being brought down to a low-power, chip-scale form. NIST researchers David
Semiconductor technologies are critical to U.S. economic and national security as they are essential to modern life in communications, healthcare, energy, etc. and also underpin many emerging technologies like quantum, artificial intelligence, high power electronics and advanced wireless (6G+). The
Our primary current research direction involves the use of fabricated devices with sub-wavelength periodicity (photonic crystals) as optomechanical elements. Such structures enable a rich variety of devices, including mirrors, polarizers, and filters, in a configuration that couples naturally to
A "single emitter" is a structure that exhibits a transition from a high energy state to a low energy state, thereby generating a photon, or light emission. A variety of solid-state single emitters have been discovered or manufactured. One example is a quantum dot, a nanometer-scale structure that
Light-matter interactions with nonlinear materials provide a powerful tool for converting optical fields from one state to another. For example, nonlinear wavelength conversion leverages efficient scattering of photons of a single frequency to another, enabling generation of coherent sources across
Zixuan Wang, Ryan DeCrescent, Poolad Imany, Joseph Bush, Sae Woo Nam, Richard Mirin, Kevin L. Silverman
Self-assembled InAs quantum dots (QDs) are promising optomechanical elements due to their excellent photonic properties and sensitivity to local strain fields
Roy Zekzer, Xiyuan Lu, Khoi Hoang, Rahul Shrestha, Sharoon Austin, Feng Zhou, Ashish Chanana, Glenn Holland, Daron Westly, Paul Lett, Alexey Gorshkov, Kartik Srinivasan
Cavity quantum electrodynamics (cQED), the interaction of a two-level system with a high quality factor (Q) cavity, is a foundational building block in
Yi Sun, Jordan Stone, Xiyuan Lu, Feng Zhou, Ashish Chanana, Zhimin Shi, Marcelo Davanco, Kartik Srinivasan
Optical parametric oscillation (OPO) in Kerr microresonators can efficiently transfer near-infrared laser light into the visible spectrum. To date, however
Christopher Flower, Mahmoud Mehrabad, Lida Xu, Gregory Moille, Daniel Suarez-Forero, Yanne Chembo, Sunil Mittal, Kartik Srinivasan, Mohammad Hafezi
On-chip generation of optical frequency combs using nonlinear ring resonators has enabled numerous applications of combs that were otherwise limited to mode