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|
January 31: Congratulations to Amr and Daniel on their paper, "Electron and Light Induced Stimulated Raman Spectroscopy for Nanoscale Molecular Mapping!" ArXiv preprint
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!
October 30: Loza attends the Annual Gates Foundation Grand Challenges Meeting in Ethiopia. Congratulations Loza !
October 30: Congratulations to Shing Shing on the publication of "Rapid identification of pathogenic bacteria using Raman spectroscopy and deep learning" in Nature Communications!
October 17: John is selected as one of four 2019 Innovation Award Finalists at SciX 2019. His presentation highlighted his work on "Enhancing Enantioselective Absorption with Plasmonic and Dielectric Metasurfaces." Congratulations John!
October 15: Loza receives the Biomedical Engineering Society's Career Development Award and presents her work on bacterial diagnostics at the annual meeting in Philadelphia. Congratulations Loza!
October 8: Congratulations to Chris on the publication of "Sub-20 nm Core–Shell–Shell Nanoparticles for Bright Upconversion and Enhanced Förster Resonant Energy Transfer" in the Journal of the American Chemical Society!
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.