13 papers
Joint control of coherent transmission, reflection, and absorption
Shiyu Li, Dongha Kim, Shanhui Fan +1
Controlling multiple wave properties simultaneously poses a key challenge in coherent control of wave transport. We present a theory for joint coherent control of transmission, ref…
Generating topological non-diffracting beams using high quality factor nonlocal metasurfaces
Dongha Kim, Charles Pelzman, Cheng Guo +3
Non-diffracting optical beams are essential tools in photonics, enabling robust light transport, super-resolution imaging, and spatiotemporal control. While nonlocal metasurfaces h…
Roadmap on Nonlocality in Photonic Materials and Metamaterials
Francesco Monticone, N. Asger Mortensen, Antonio I. Fernández-DomÃnguez +63
Photonic technologies continue to drive the quest for new optical materials with unprecedented responses. A major frontier in this field is the exploration of nonlocal (spatially d…
Ultrafast space-time optical merons in momentum-energy space
Murat Yessenov, Ahmed H. Dorrah, Cheng Guo +7
Skyrmions, topologically non-trivial localized spin structures, are fertile ground for exploring emergent phenomena in condensed matter physics and next-generation magnetic-memory…
Spatiotemporal steering of non-diffracting wavepackets
Haiwen Wang, Cheng Guo, Shanhui Fan
We study the dynamics of space-time non-diffracting wavepackets, commonly known as light bullets, in a spatiotemporally varying medium. We show that by spatiotemporal refraction, a…
Dynamic realization of emergent high-dimensional optical vortices
Dongha Kim, Geonhyeong Park, Yun-Seok Choi +9
The dimensionality of vortical structures has recently been extended beyond two dimensions, providing higher-order topological characteristics and robustness for high-capacity info…