Resonance-free Fabry-Pérot cavity via an unrestricted orbital-angular-momentum ladder-up process
Date: April 21, 2026
Time: 11:00 AM ET | 10:00 AM CT | 8:00 AM PT
Duration: 60 minutes
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A novel Fabry–Pérot cavity incorporates a holographic phase mask demonstrates resonance-free operation by driving an unrestricted orbital-angular-momentum (OAM) ladder, which enables broadband transmission of twisted-light modes.
In this webinar, Dr. Shaghayegh Yaraghi will explain the physical mechanism behind this OAM ladder-up process, describe the cavity design and experimental implementation, and discuss the broader implications for structured light and advanced applications.
Speaker:
Dr. Shaghayegh Yaraghi
Postdoctoral researcher working with Professor Ivan Divliansky
University of Central Florida
Dr. Shaghayegh Yaraghi is a postdoctoral researcher working with Professor Ivan Divliansky at the University of Central Florida in a research group focused on advanced volume holography, including fabrication and its application in diverse optical systems (https://creol.ucf.edu/ahlr/). She received her Ph.D. from the University of Central Florida, earned her master's degrees from the University of Central Florida and the University of Tehran, and completed her bachelor's degree in electrical engineering at Sharif University of Technology. She has contributed to expanding the eye-box of AR displays using holographic volume gratings, developing a compact hyperspectral imaging system based on rotated volume gratings, and designing phase-only volume holographic elements in photo-thermo-refractive glass for structured light applications.
