Paper 13110-16
Dynamic space-time wave packets (Keynote Presentation)
18 August 2024 • 4:00 PM - 4:40 PM PDT | Conv. Ctr. Room 3
Abstract
A beam’s spatial distribution can be structured in terms of its amplitude and phase, and the transverse and longitudinal distribution can be tailored by an appropriate transmission of orthogonal modes. Interestingly, a space-time wave packet (STWP) with a dynamically varying spatial structure can be produced by simultaneously transmitting multiple lines of an optical frequency comb, such that each frequency line has a tailorable spatial modal combination. This presentation will highlight light fields whose transverse and longitudinal properties can be designed to vary with time and thus have dynamic behavior.
Specifically, STWPs can have spatiotemporal evolution that is arbitrarily engineered to occur at any given propagation distance in the transverse dimension as well as at various distances along the longitudinal propagation path. This can be achieved by introducing a 2-D spectrum comprising both temporal and longitudinal wavenumbers, resulting in packets evolving in time and distance. This presentation will discuss various beam properties that can dynamically evolve, including: rotation and revolution, radius, amplitude, phase, polarization, and mode number.
Presenter
The Univ. of Southern California (United States)
Alan Willner worked at AT&T Bell Labs and Bellcore, and is a Distinguished Professor and the Viterbi Professorial Chair of ECE at USC. His honors include: Member National Academy of Engineering, International Fellow U.K. Royal Academy of Engineering, IEEE Sumner Award, NSF Presidential Faculty Fellows Award from the White House, Guggenheim Fellowship, Packard Fellowship, Fulbright Fellowship, Vannevar Bush Faculty Fellowship, Optica Forman Engineering Excellence Award, IEEE Photonics Society Engineering Achievement Award, SPIE President's Award, Ellis Island Medal of Honor, Optica Hopkins Leadership Award, Eddy Best Paper Award, IEEE Globecom Best Paper, and Fellow National Academy Inventors. He was President of IEEE Photonics Society, President of Optica, and Editor-in-Chief Optics Letters, IEEE/OSA Journal of Lightwave Technology, and IEEE Journal of Selected Topics in Quantum Electronics. He is Fellow of AAAS, IEEE, IET, Optica, and SPIE.