OSC Colloquium: Euan McLeod

    Thursday, November 12, 2020 - 3:30pm - 5:00pm
    Virtual Via Zoom

    Open to campus and public.


    Speaker: Euan McLeod

    Topic: Soft-Material Nanophotonic Systems.

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    I will present our group’s recent research into soft nanophotonic systems: the interaction of light with systems of nanometer-scale components in soft materials like liquids, colloids, or polymers. We have developed an optical positioning and linking (OPAL) approach for assembling 3D structures out of large numbers of multi-material microscale and nanoscale building blocks. This optical tweezers-based approach provides a route for fabricating structures that were previously infeasible, including precision augmentation of microtoroid optical resonator sensors. We will discuss computational approaches that we have developed for designing new photonic devices based on the assembly of discrete building blocks. I will also discuss our work using lensfree holographic on-chip microscopy in combination with microfluidic devices for high-throughput sensing of protein biomarkers. Our simple, cost-effective, and field-portable sensor device relies on computational imaging to determine biomarker concentrations.

    Speaker Bio(s): 

    Euan McLeod is an Assistant Professor in the College of Optical Sciences at the University of Arizona (UArizona) since 2015. He is also an Assistant Professor of the UArizona BIO5 Institute and an Affiliate Member of the UArizona Cancer Center. He was previously a postdoc in Electrical Engineering and Bioengineering at UCLA, as well as a postdoc in Applied Physics at Caltech. He received his Ph.D. in Mechanical & Aerospace Engineering from Princeton University and his B.S. in Mechanical Engineering with honors from Caltech. Euan is a Senior Member of the Optical Society of America and a Life Member of SPIE. Euan’s background and interests lie at the intersection of optics, nanoscience, and soft bio-materials science. He has published more than 35 papers on these topics in peer-reviewed journals, with major contributions in the areas of high-speed varifocal lenses based on acoustic modulation; lensfree holographic imaging of nanoparticles, viruses, and biomarkers; and the use of optical tweezers in fabricating micro- and nano-structured materials. His Ph.D. work on tunable acoustic gradient index (TAG) lenses led to numerous innovation awards, including: a 2013 R&D 100 Award; a 2013 SPIE & Photonics Media: Prism Award; and a 2017 Thomas Alva Edison Patent Award. This patented technology is now fully licensed by Mitutoyo Corp and commercially sold.


    Colloquium will start at 3:30pm, following will be a meet and greet with Euan McLeod.