WebAug 24, 2024 · Here, we demonstrate a novel approach to construct superchiral field in achiral dielectric metasurfaces. Due to the quantum spin-hall effect, each symmetry-protected bound state in the continuum (BIC) exhibits the ability to support a superchiral field in vicinity of \Gamma point. WebApr 10, 2024 · It is demonstrated that rotationally symmetric chiral metasurfaces can support sharp resonances with the maximum optical chirality determined by precise shaping of bound states in the continuum (BICs), and a realization of such chiral BIC metAsurfaces based on pairs of dielectric bars is proposed. Expand. 62. PDF. Save.
Light People: Professor Cheng-Wei Qiu Semantic Scholar
WebJun 1, 2024 · Our result marks the first observation of intrinsic chiral bound states in the continuum with near-unity chiral dichroism of 0.93 and record-high quality factor exceeding 2663 for visible frequencies. Web2 days ago · Here, we suggest a design of chiral metasurface supporting bound state in the continuum (BIC) and demonstrate experimentally chiroptical responses with ultra … can i get long term care insurance at age 69
Observation of intrinsic chiral bound states in the …
WebThe realization of an efficient optical sensor based on a photonic crystal metasurface supporting bound states in the continuum is reported. Liquids with different refractive indices, ranging from 1.4000 to 1.4480, are infiltrated in a microfluidic chamber bonded to the sensing dielectric metasurface. A bulk liquid sensitivity of 178 nm/RIU is … WebApr 10, 2024 · The chiral bound states in continuum (BIC) with extreme intrinsic chirality was realized and observed for the first time, which was published in Nature with the title “Observation of intrinsic ... WebDec 8, 2024 · Remarkably, we simultaneously select two polarization states at different bands for a certain achiral metasurface based on the symmetry-protected dual bound states in the continuum (BICs). The measured maximum CDs approach ±0.85. can i get long term care insurance at age 70