Welcome! We are the research group of Jen Dionne, Associate Professor of Materials Science and Engineering at Stanford University. We are a diverse team of materials scientists, chemists, applied physicists, electrical engineers, chemical engineers, bioengineers and mechanical engineers, researching new ways to control light-matter interactions.
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.
Please feel free to navigate this site or contact us for more information!
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.
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| Group Video, June 2015 | Russian River Canoe Trip, July 2014 |
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| Upconversion | Nanoscale optical tomography |
Latest News
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 17: Congratulations to Mark and David on the publication of "High quality factor phase gradient metasurfaces" in Nature Nanotechnology and highlight in Stanford News!
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 Dean of Research for Platforms/Shared Facilities!
June 29: Congratulations to Jefferson on being featured in “Stories of Pride,” published in SPIE. Pride Month Conversations! <_> Related tweet
June 29: Congratulations to Michelle for successfully defending her thesis! 
Featured Research
I. High quality factor phase gradient metasurfaces:
Mark, David and co-authors investigated structuring ultrathin silicon chips into nanoscale bars to resonantly trap light and then release or redirect it later. These “high-quality-factor” or “high-Q” resonators could lead to novel ways of manipulating and using light, including new applications for quantum computing, virtual reality and augmented reality; light-based WiFi; and even the detection of viruses like SARS-CoV-2.
II. ELISR, a vibrational spectroscopy imaging technique:
Amr and Daniel propose and theoretically analyze a vibrational spectroscopy imaging technique, termed, termed electron- and light-induced stimulated Raman (ELISR) scattering.
III. Toward Rapid Infectious Disease Diagnosis:
Loza, Fareeha, Amr and co-authors shared their perspective on advances in surface-enhanced Raman spectroscopy (SERS) for achieving clinically translatable diagnostic system. In COVID-19 era, it is apparent that rapid and accurate diagnosis is key for timely treatment. Our work covers current advances in SERS including machine learning for spectral data analysis and nanophotonic surface design, affinity agents for specific binding of targets, and microfluidics and bioprinting tools for efficient sample processing. Our work highlights that these advances lay a promising pathway for translating SERS for clinical application.