About Us
We are a multidisciplinary research group. Our aim is to characterize, understand and control light-matter interactions, with a focus on sensing, engineering and exploiting novel quantum and optoelectronic properties emerging from nanostructures and interfaces. This offers unprecedented opportunities for developing innovative material and device functionalities that rely on dynamic, local manipulation of single photons and charge carriers. We gain our knowledge by correlating spatially-dependent physical properties (e.g. electronic structure, excitonic interactions) with chemical information (e.g. molecular composition, reaction rates and dynamics) and morphological structure (e.g. strain, phase).
This work is enabled by new sensing and spectroscopic methods that we are continuously developing. Our approaches are typically grounded in (nano)optical, scan-probe, and single-molecule imaging techniques, which provide unique access to behavior at relevant length and time scales in real environments encountered in energy and biological applications.
News
Our paper showing efficient photon pair generation from periodically poled TMDs over microscopic length scales has now been published in Nature Photonics
Congratulations to lead author Dr. Chiara Trovatello on this exciting paper, titled "Quasi-phase-matched up- and down-conversion in periodically poled layered semiconductors" - a collaboration with the groups of Milan Delor, Dmitri Basov, Jiwoong Park, Philip Walther, Cory R Dean, Lee A Rozema, Andrea Marini, and Giulio Cerullo. A press release summarizing the work can be found here.
Our work on piconewton to micronewton force sensing using new photon avalanching nanoparticles was published in Nature
Congrats to lead author Dr. Natalie Fardian-Melamed on this breakthrough paper, titled "Infrared nanosensors of piconewton to micronewton forces" - a collaboration with the groups of Jordan Gerton, Bruce Cohen and Emory Chan . A press release summarizing the work can be found here.
Our paper on the first realization of fully photoswitchable all-inorganic nanoparticles, demonstrating perfect photostability and NIR response, was published in Nature.
Congrats to lead author Changhwan Lee on this exciting paper, titled "Indefinite and bidirectional near-infrared nanocrystal photoswitching" - a collaboration with the groups of Yung Doug Suh, Bruce Cohen and Emory Chan . A press release summarizing the work can be found here.