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|
November 5: Congratulations to Lisa, Mark, David, Stefanie and Jen on the publication of “Guided-Mode-Resonant Dielectric Metasurfaces for Colorimetric Imaging of Material Anisotropy in Fibrous Biological Tissue” in ACS Photonics!
October 30: Congratulations to David on the publication of "High-Q nanophotonics: sculpting wavefronts with slow light" in Nanophotonics!
October 16: Congratulations to Jason, Claire and Chris on the publication of "Lanthanide-Based Nanosensors: Refining Nanoparticle Responsiveness for Single Particle Imaging of Stimuli" in ACS Photonics!
October 13: Congratulations to Michelle on the publication of "Fluorescence-Detected Circular Dichroism of a Chiral Molecular Monolayer with Dielectric Metasurfaces" in the Journal of the American Chemical Society!
October 7: Jen is named an OSA Fellow for her contributions to nanophotonics! 2021 OSA Fellows
September 25: The group welcomes Cindy Shi, Baba Ogunlade, Ariel Stiber and Kai Chang to Stanford and the D-lab!
September 23: Congratulations to John on the publication of "Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]N Films" in Advanced Optical Materials!
September 22: Lisa is joining the faculty of UCSD's Jacob's School of Engineering this fall as an Assistant Professor. Congratulations Lisa! Press Release.
September 11: Congratulations to Loza on the publication of "Plasmonic and electrostatic interactions enable uniformly-enhanced liquid bacterial surface-enhanced Raman scattering (SERS)" in Nano Letters!
August 29: Congratulations to our alum, Hadiseh Alaeian, on starting her faculty position at Purdue! You'll be great, Prof. Alaeian!
August 25: Congratulations to Stefan and Chris on the publication of "Bright infrared to ultraviolet and visible upconversion in small alkaline earth-based nanoparticles with biocompatible CaF2 shells" in Angewandte Chemie!
August 24: Claire is named an OSA Ambassador. Congratulations Claire! Read the feature and watch her video.
August 16: Harsha Eragamreddy joins the Dionne group as its newest Post Doctoral Researcher!
August 6: Congratulations to Amr and Daniel on the publication of "Electron- and light-induced stimulated Raman spectroscopy for nanoscale molecular mapping" in Physical Review B!
August 1: Hendrik Utzat joins the Dionne group as its newest Post Doctoral Researcher!
July 1: Congratulations to Katherine for successfully defending her thesis!
July 1: Sophia Cheng joins the Dionne group as its newest Post Doctoral Researcher!
June 30: Jen is named the Senior Associate Vice Provost of Research Platforms/Shared Facilities!
I. Colorimetric Metasurfaces for Tissue Diagnostics:Lisa and Co-authors introduce a guided-mode-resonant dielectric metasurface which can be leveraged for colorimetric imaging of material anisotropy in fibrous biological tissue. Their approach opens the door to a variety of potential all-optical applications to diagnose tissue affected by diseases such as Alzheimer’s disease, heart disease or cancer.
II. Lanthanide-Based Nanosensors:Jason and co-authors discuss the potential for using single-particle lanthanide nanoparticles as sensors and provide a roadmap for overcoming the current challenges.
III. Fluorescence-Detected Circular Dichroism:Michelle and co-authors use dielectric metasurfaces to amplify molecular circular dichroism, enabling measurements on a monolayer of chiral molecules and showing correlation with optical chirality density. This experiment demonstrates the potential of nanophotonic platforms in chiral sensing and separation.