We imagine a world where diseases like cancer, Alzheimer's and tuberculosis are detected and cured with light; where solar cells provide abundant clean energy; and where cell phones compute at the speed of light. We then strive to make that future a reality through development of new nanophotonic materials, methods, and devices.
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What is a typical day like for a researcher in our group? Check out our videos to learn more about our science and our culture. If you like what you see and want to join our team, please send us your resume. We're always on the lookout for smart, creative people.
|Group Video, June 2015||Russian River Canoe Trip, July 2014|
|Upconversion||Nanoscale optical tomography|
April 1: Yin Liu joins the Dionne group as its newest Post Doctoral Researcher!
March 30: Congratulations to Briley Bourgeois and Sahil Dagli for being awarded NSF Graduate Research Fellowships!
March 2: Congratulations to Loza and co-collaborator Fareeha Safir for winning best poster at the Stanford Bio-X Interdisciplinary Initiatives Seed Grants Program Poster Session!
February 24: Congratulations to Fariah on the publication of, "Revealing multiple classes of stable quantum emitters in hexagonal boron nitride with correlated optical and electron microscopy" in Nature Materials! Read the press release.
February 6-7: Jen participates in the NSF's 70th anniversary symposium in Washington D.C.
January 15: Stanford Engineering features the Catalyst group's work on developing a new process for rapidly and sensitively detecting bacteria! Article
January 8: Congratulations to Michelle and Amr on the publication of "Nanophotonic Platforms for Chiral Sensing and Separation" in Accounts of Chemical Research!
January 7: Jen presents at Physics of Quantum Electronics Colloquium, PQE-2020, in Snowbird, Utah.
December 5: Jen presents at the Molecular Frontiers Meeting, Light at the Nanoscale at Chalmers University of Technology.
December 3: David receives a Materials Research Society Graduate Student Award. Congratulations David!
November 27: Claire receives a Wu Tsai Neurosciences Institute Interdisciplinary Scholar Award. Congratulations Claire!
November 20: Jen gives a colloquium talk for the Physics Department at Washington University in St. Louis. Thank you Mike Ogilvie for the invitation!
November 13: Congratulations to Jack on the publication of "High Quality Factor Dielectric Metasurfaces for Ultraviolet Circular Dichroism Spectroscopy" in ACS Photonics!
November 12: Congratulations to Fariah Hayee for successfully defending her thesis!
I. Electron and Light Induced Stimulated Raman Spectroscopy for Nanoscale Molecular Mapping:
Amr, Daniel and Jen introduce and computationally investigate a new vibrational spectroscopy for electron microscopy.
II. Nanophotonic Platforms for Chiral Sensing and Separation:
Michelle, Amr, Lisa, John, and Loza reviewed the group's work on enhancing chiral light-matter interactions with dielectric nanostructures and plasmonic coaxial tweezers. They discuss how such platforms can lead to measurement of enantiomeric excess and optical forces, with the potential to create better sensors and methods for separation of chiral molecules.
III. High quality factor dielectric metasurfaces for ultraviolet circular dichroism spectroscopy:
Jack and Mark designed high quality factor metasurfaces to enhance chiral light matter interactions in the ultraviolet. Their research, published in ACS Photonics, utilizes asymmetric metasurfaces that strongly concentrate twisted light and enhance the chiral absorption of small molecules. This work paves the way for ultrasensitive chiral-optical spectroscopies and efficient light mediated enantiomer separation.