Physics

Physics Colloquium, 4/14

Juliet Gopinath

Windows Into Places Unseen: Optical Fiber-Based Quantum Sensing and Super-Resolution Imaging

Abstract: I will discuss our advances in quantum fiber sensing, showcasing how distributed fiber sensing can provide new information with enhanced sensitivity in optical fiber. The advancements will enable measurements in difficult to reach environments such as the ocean or underground. Additionally, I will describe our fiber-coupled super-resolution microscope that enables a window into the brain. We use a bend-insensitive donut that can be transmitted through commercially available fiber along with a Gaussian excitation beam to demonstrate stimulated emission depletion microscopy. Resolution below the diffraction limit can enable new advances in neuroscience in the study of neurological disease, learning, memory and grief.

Biography: Juliet Gopinath is the Alfred T. and Betty E. Look Professor of Electrical, Computer and Energy Engineering and Physics at the University of Colorado Boulder. She received her B.S. degree in Electrical Engineering from the University of Minnesota and her M.S. and Ph.D. degrees at MIT. She was a member of technical staff at MIT Lincoln Laboratory from 2005 to 2009. Since then, she has led a research group at the University of Colorado Boulder. Her current research interests include ultrafast lasers, nonlinear optics, integrated photonic devices, spectroscopy and microscopy, quantum networking, structured light, and adaptive optical devices. She has published 103 peer-reviewed journal articles and over 140 conference presentations. She is the recipient of an AFOSR Young Investigator Award (2010), R&D 100 Award (2012), NSF CAREER (2016), University of Colorado Provost Achievement Award (2016), University of Colorado Engineering CEAS Research Award (2025), University of Colorado Boulder Faculty Award for Research (2026) and is an Optica Fellow (2021). She served as an Associate Editor for the IEEE Photonics Society Journal (2011-2017), the Associate Director for Cubit (2019), an Associate Editor for Optica (2020 – 2024), and is currently Secretary/Treasurer for APS Division of Laser Science (2023 – 2026) and Deputy Editor for Optica (2025-ongoing), as well as the 2026 program co-chair for the CLEO (Conference on Lasers and Electro-Optics) conference.

Physics Colloquium, April 14

Juliet Gopinath

Windows Into Places Unseen: Optical Fiber-Based Quantum Sensing and Super-Resolution Imaging

Abstract: I will discuss our advances in quantum fiber sensing, showcasing how distributed fiber sensing can provide new information with enhanced sensitivity in optical fiber. The advancements will enable measurements in difficult to reach environments such as the ocean or underground. Additionally, I will describe our fiber-coupled super-resolution microscope that enables a window into the brain. We use a bend-insensitive donut that can be transmitted through commercially available fiber along with a Gaussian excitation beam to demonstrate stimulated emission depletion microscopy. Resolution below the diffraction limit can enable new advances in neuroscience in the study of neurological disease, learning, memory and grief.

Biography: Juliet Gopinath is the Alfred T. and Betty E. Look Professor of Electrical, Computer and Energy Engineering and Physics at the University of Colorado Boulder. She received her B.S. degree in Electrical Engineering from the University of Minnesota and her M.S. and Ph.D. degrees at MIT. She was a member of technical staff at MIT Lincoln Laboratory from 2005 to 2009. Since then, she has led a research group at the University of Colorado Boulder. Her current research interests include ultrafast lasers, nonlinear optics, integrated photonic devices, spectroscopy and microscopy, quantum networking, structured light, and adaptive optical devices. She has published 103 peer-reviewed journal articles and over 140 conference presentations. She is the recipient of an AFOSR Young Investigator Award (2010), R&D 100 Award (2012), NSF CAREER (2016), University of Colorado Provost Achievement Award (2016), University of Colorado Engineering CEAS Research Award (2025), University of Colorado Boulder Faculty Award for Research (2026) and is an Optica Fellow (2021). She served as an Associate Editor for the IEEE Photonics Society Journal (2011-2017), the Associate Director for Cubit (2019), an Associate Editor for Optica (2020 – 2024), and is currently Secretary/Treasurer for APS Division of Laser Science (2023 – 2026) and Deputy Editor for Optica (2025-ongoing), as well as the 2026 program co-chair for the CLEO (Conference on Lasers and Electro-Optics) conference.