Results 1 to 10 of about 7,840 (209)

Arbitrarily polarized bound states in the continuum with twisted photonic crystal slabs. [PDF]

Light Sci Appl, 2023
Bilayer twisted photonic crystal slabs enable arbitrarily polarized bound states in continuum (BICs) covering full Poincare sphere.
Qin H, Su Z, Liu M, Zeng Y, Tang MC, Li M, Shi Y, Huang W, Qiu CW, Song Q.   +9 more
europepmc   +3 more sources

Directional spontaneous emission in photonic crystal slabs. [PDF]

Nanophotonics
Abstract Spontaneous emission is one of the most fundamental out-of-equilibrium processes in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. In this process, a photon is emitted that can interact with other nearby emitters and establish quantum correlations between them, e.g., via super and ...
Navarro-Barón EP, Vinck-Posada H, González-Tudela A.   +2 more
europepmc   +6 more sources

Single-shot on-chip spectral sensors based on photonic crystal slabs. [PDF]

Nat Commun, 2019
Miniaturized components have significant potential for portable applications. Here, the authors demonstrate a spectrometer and hyperspectral imager based on photonic-crystal slabs which can enable single-shot imaging on a compact chip.
Wang Z, Yi S, Chen A, Zhou M, Luk TS, James A, Nogan J, Ross W, Joe G, Shahsafi A, Wang KX, Kats MA, Yu Z.   +12 more
europepmc   +3 more sources

Realization of large transmitted optical Goos-Hänchen shifts in photonic crystal slabs. [PDF]

Nanophotonics, 2022
In this letter, we demonstrate the existence of large transmitted optical positive and negative Goos–Hänchen shifts in photonic crystal slabs numerically and experimentally.
Du S, Zhang W, Liu W, Zhang Y, Zhao M, Shi L.   +5 more
europepmc   +2 more sources

Light Absorption in Nanowire Photonic Crystal Slabs and the Physics of Exceptional Points: The Shape Shifter Modes. [PDF]

Sensors (Basel), 2021
Semiconductor nanowire arrays have been demonstrated as promising candidates for nanoscale optoelectronics applications due to their high detectivity as well as tunable photoresponse and bandgap over a wide spectral range.
Trendafilov S, Allen JW, Allen MS, Dev SU, Li Z, Fu L, Jagadish C.   +6 more
europepmc   +2 more sources

Bound states in the continuum in anisotropic photonic crystal slabs. [PDF]

Sci Rep, 2023
We investigate the bound states in the continuum (BICs) in photonic crystal slabs composed of alternating anisotropic and isotropic dielectric materials.
Chern RL, Chang JC, Yang HC.
europepmc   +2 more sources

Formation mechanism of guided resonances and bound states in the continuum in photonic crystal slabs. [PDF]

Sci Rep, 2016
We develop a formalism, based on the mode expansion method, to describe the guided resonances and bound states in the continuum (BICs) in photonic crystal slabs with one-dimensional periodicity.
Gao X, Hsu CW, Zhen B, Lin X, Joannopoulos JD, Soljačić M, Chen H.   +6 more
europepmc   +3 more sources

Merging of Accidental Bound States in the Continuum in Symmetry and Symmetry-Broken Terahertz Photonic Crystal Slabs. [PDF]

Nanomaterials (Basel)
Recently, the merging of accidental bound states in the continuum (BICs) has attracted significant attention due to the enhanced light–matter interactions.
Chen J, Liu J, Shu F, Du Y, Hong Z.
europepmc   +2 more sources

Generalized non-Hermitian Hamiltonian for guided resonances in photonic crystal slabs. [PDF]

Nanophotonics
We develop a generalized non-Hermitian Hamiltonian formalism for guided resonances in photonic crystal slabs, derived directly from Maxwell’s equations through a systematic guided-mode expansion.
Nguyen VA, Nguyen HS, Yuan Z, Nguyen DX, Dang C, Ha ST, Letartre X, Le-Van Q, Nguyen HS.   +8 more
europepmc   +2 more sources

Optical Refractive Index Sensing Based on High-Q Bound States in the Continuum in Free-Space Coupled Photonic Crystal Slabs. [PDF]

Sensors (Basel), 2017
High sensitivity (S) and high quality factor (Q) are desirable to achieve low detection limit in label-free optical sensors. In this paper, we theoretically demonstrate that single-layer and coupled bi-layer photonic crystal slabs (PCS) possess ...
Liu Y, Zhou W, Sun Y.
europepmc   +2 more sources