Photonic devices that exhibit both sensitivity and robustness have long been sought;yet,these characteristics are thought to be mutually exclusive;through sensitivity,a sensor responds to external stimuli,whereas robu...Photonic devices that exhibit both sensitivity and robustness have long been sought;yet,these characteristics are thought to be mutually exclusive;through sensitivity,a sensor responds to external stimuli,whereas robustness embodies the inherent ability of a device to withstand weathering by these same stimuli.This challenge stems from the inherent contradiction between robustness and sensitivity in wave dynamics,which require the coexistence of noise-immune sensitive states and modulation-sensitive transitions between these states.We report and experimentally demonstrate a subwavelength phase singularity in a chiral medium that is resilient to fabrication imperfections and disorder while remaining highly responsive to external stimuli.The combination of subwavelength light confinement and its robustness lays the foundation for the development of hitherto unexplored chip-scale photonics devices,enabling a simultaneous development of high-sensitivity and robust devices in both quantum and classical realms.展开更多
基金supported by the 2023 Beckman Young Investigator Award, from the Arnold and Mabel Beckman FoundationAir Force Office of Scientific Research MURI (Award No. FA9550-22-1-0312)+5 种基金PAIR-UP program sponsored by ASCBfunded in part by The Gordon Moore Foundation, with additional support from the Burroughs Wellcome Funds2022 Scialog: Advancing Bio ImagingKavli Innovation GrantSilicon Valley Community Foundation (Grant No. DAF2023331948)cZi Dynamic imaging via the Chan Zuckerberg Donor Advised Fund (DAF) through the Silicon Valley Community Foundation
文摘Photonic devices that exhibit both sensitivity and robustness have long been sought;yet,these characteristics are thought to be mutually exclusive;through sensitivity,a sensor responds to external stimuli,whereas robustness embodies the inherent ability of a device to withstand weathering by these same stimuli.This challenge stems from the inherent contradiction between robustness and sensitivity in wave dynamics,which require the coexistence of noise-immune sensitive states and modulation-sensitive transitions between these states.We report and experimentally demonstrate a subwavelength phase singularity in a chiral medium that is resilient to fabrication imperfections and disorder while remaining highly responsive to external stimuli.The combination of subwavelength light confinement and its robustness lays the foundation for the development of hitherto unexplored chip-scale photonics devices,enabling a simultaneous development of high-sensitivity and robust devices in both quantum and classical realms.
