Welcome to the Masiello Group

light-matter theory at the nanoscale

We are a group of theoreticians with diverse backgrounds in chemistry, physics, electrical engineering, materials science, and applied mathematics working at the interface of plasmonics, nanophotonics, and quantum optics. Our research provides insight and understanding in the discovery of quantum, optical, magnetic, and thermal materials phenomena spanning the frontiers of high space and energy resolution. Deep connection to experiment influences everything we do.

Recent News

New DOE BES Electron and Scanning Probe Microscopy (ESPM) Award

DOE BES ESPM will fund the next generation of our work in the theoretical development of vortex-polarized free electron beam probes of polaritonic quantum materials.

New PRL on mapping exciton polaritons in structured optical cavities using focused electron beams

Congratulations to Marc, Elliot, Siamak, and Nicole for their development of a new STEM electron beam probe capable of spectrally and spatially mapping a new class of quantum materials at their native energy, length, and momentum scales.

Welcome Betty!

First year Chemistry graduate student, Betty Guo, joins the group and our DMREF team. Welcome Betty!

Alumni News

Congratulations to Dr. Claire West for receiving the Isaac Newton International Postdoctoral Fellowship from the Royal Society to fund her postdoctoral research at the University of Cambridge. Congratulations to Dr. Jacob Busche for receiving the Marie Sklodowska-Curie Postdoctoral Fellowship from the European Commission to fund his postdoctoral research at the University of Madrid.

Research

Fast Electron Nano-Spectroscopy

Pushing the boundaries of fast electron spectroscopy, energy-monochromated and aberration-corrected scanning transmission electron microscopes have opened the far infrared to nanometer scale spatial mapping. Together with experiment, we leverage these advances to resolve open fundamental questions in nano-spectroscopy, perform entirely new materials characterization techniques at the single-particle level, and discover advanced materials endowed with unprecedented functionalities.

Nanophotonics / Quantum Optics

Coupling between light and matter is extraordinarily weak. Optical resonator cavities provide an opportunity to coax repeated light-matter interactions, thereby enhancing coupling far beyond that of free space. In such settings, coupling can be so strong that it is no longer possible to disentangle the original optical and material degrees of freedom, resulting in non-equilibrium quantum optical states endowed with properties beyond those of their components.

Photothermal Spectroscopy and Microscopy

Measurement of the two distinct components—scattering and absorption—of a single particle’s optical extinction provides fundamentally important and complementary information on how that object processes light: either scattering it back to the far-field or converting it into internal excitation.

Meet the Group

Principal Investigator

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David J. Masiello

Professor of Chemistry
Bernard and Claudine Nist Endowed Scholar in Chemistry
Adjunct Professor of Materials Science and Engineering
Adjunct Professor of Applied Mathematics

Ph.D. Chemical Physics, University of Florida
B.S. Mathematics, University of Florida

Post-Doctoral Fellows

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Marc Bourgeois

Post-Doctoral Fellow

Ph.D. Chemistry, Northwestern University
M.S. Physics, University of Arizona
B.A. Physics, Math, and Integrated Sciences, Northwestern University

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Aniruddha Bhattacharya

Post-Doctoral Fellow

Ph.D. Electrical Engineering, University of Michigan
B.E. Electrical Engineering, Indian Institute of Engineering Science and Technology

Graduate Students

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Praise Anyanwu

Graduate Student, Chemistry

B.S. Chemistry, Bard College

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Elliot Beutler

Graduate Student, Chemistry

B.S. Chemistry, University of Washington

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Matthieu Chalifour

Graduate Student, Physics

B.S. Physics, Swarthmore College

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Xiaofei (Betty) Guo

Graduate Student, Chemistry

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Siamak Khorasani

Graduate Student, Materials Science & Engineering

M.S. Nanoengineering, Joint School of Nanoscience and Nanoengineering

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Austin Nixon

Graduate Student, Chemistry

B.S. Physics and Chemistry, University of Washington

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Andrew Rossi

Graduate Student, Chemistry

B.S. Chemistry, The Ohio State University

Alumni

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Nicholas Bigelow, Ph.D.

Graduate Student, Chemistry

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Jacob Busche, Ph.D.

Graduate Student, Chemistry

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Charles Cherqui, Ph.D.

Post-Doctoral Fellow

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Harrison Goldwyn, Ph.D.

Graduate Student, Chemistry

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Zhongwei Hu, Ph.D.

Post-Doctoral Fellow

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Xiang-Tian Kong, Ph.D.

Post-Doctoral Fellow

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Nicholas P. Montoni, Ph.D.

Graduate Student, Chemistry

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Zhaoxia Qian, Ph.D.

Post-Doctoral Fellow

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Steven Quillin, Ph.D.

Graduate Student, Chemistry

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Kevin Smith, Ph.D.

Graduate Student, Physics

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Claire West, Ph.D.

Ph.D. Chemistry, University of Washington
B.S. Physics, UC Santa Barbara

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Niket Thakkar, Ph.D.

Graduate Student, Applied Mathematics

Publications

Quickly discover relevant content by filtering publications.

Nanometer-Scale Spatial and Spectral Mapping of Exciton Polaritons in Structured Plasmonic Cavities

Nanoscale Mapping and Defect-Assisted Manipulation of Surface Plasmon Resonances in 2D Bi2Te3/Sb2Te3 In-Plane Heterostructures

Visualizing Electric and Magnetic Field Coupling in Au-Nanorod Trimer Structures via Stimulated Electron Energy Gain and Cathodoluminescence Spectroscopy: Implications for Meta-Atom Imaging

Model-Based Insight into Single-Molecule Plasmonic Mislocalization

Toward Quantitative Nanothermometry Using Single-Molecule Counting

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