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• Feb

  11

  ECE Seminar Series: Pai-Yen Chen

  Department of Electrical and Computer Engineering (ECE)

  10:00 AM L440, Technological Institute

  EVENT DETAILS

  Non-Hermitian Electromagnetics and Its Applications,

  Over the past decade, non-Hermitian physics and its unique singularities—exceptional points (EPs)— have redefined wave engineering, facilitating breakthroughs in signal generation, routing, and sensing. My talk starts with reviewing non-Hermitian physics and parity-time (PT) symmetry, demonstrating how the formal similarity between Schrödinger’s and Maxwell’s equations enable electromagnetic systems with unconventional functionalities like unidirectional propagation and chiral dynamics. I will showcase our recent advancements in the RF and microwave domains, such as EP-based wireless sensors with unprecedented sensitivity, super-directive antennas, misalignment-tolerant wireless power transfer, and entropy-boosted electromagnetic fingerprints for cryptography and security. I will also introduce the self-dual absorber-emitter singularity in PT systems and their potential in tailoring laser thresholds and developing ultrasensitive optical and RF sensors.

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  TIME Wednesday, February 11, 2026 at 10:00 AM - 11:00 AM

  LOCATION L440, Technological Institute    map it

  ADD TO CALENDAR

  CONTACT Amani Walker    amani.walker@northwestern.edu EMAIL

  CALENDAR Department of Electrical and Computer Engineering (ECE)