Results 1 to 10 of about 824 (185)

Directional spontaneous emission in photonic crystal slabs [PDF]

Nanophotonics
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.
Navarro-Barón Erik P., Vinck-Posada Herbert, González-Tudela Alejandro   +2 more
doaj   +6 more sources

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

Light: Science & Applications, 2023
Bilayer twisted photonic crystal slabs enable arbitrarily polarized bound states in continuum (BICs) covering full Poincare sphere.
Haoye Qin, Zengping Su, Mengqi Liu, Yixuan Zeng, Man-Chung Tang, Mengyao Li, Yuzhi Shi, Wei Huang, Cheng-Wei Qiu, Qinghua Song   +9 more
doaj   +2 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 Shihao, Zhang Wenjie, Liu Wenzhe, Zhang Yanbin, Zhao Maoxiong, Shi Lei   +5 more
doaj   +2 more sources

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

Sensors, 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.
Simeon Trendafilov, Jeffery W. Allen, Monica S. Allen, Sukrith U. Dev, Ziyuan Li, Lan Fu, Chennupati Jagadish   +6 more
doaj   +2 more sources

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

Scientific Reports, 2023
We investigate the bound states in the continuum (BICs) in photonic crystal slabs composed of alternating anisotropic and isotropic dielectric materials.
Ruey-Lin Chern, Jui-Chien Chang, Hsueh-Chi Yang   +2 more
doaj   +2 more sources

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

Nature Communications, 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.
Zhu Wang, Soongyu Yi, Ang Chen, Ming Zhou, Ting Shan Luk, Anthony James, John Nogan, Willard Ross, Graham Joe, Alireza Shahsafi, Ken Xingze Wang, Mikhail A. Kats, Zongfu Yu   +12 more
doaj   +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 Viet Anh, Nguyen Hung Son, Yuan Zhiyi, Nguyen Dung Xuan, Dang Cuong, Ha Son Tung, Letartre Xavier, Le-Van Quynh, Nguyen Hai Son   +8 more
doaj   +2 more sources

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

Nanomaterials
Recently, the merging of accidental bound states in the continuum (BICs) has attracted significant attention due to the enhanced light–matter interactions.
Jiale Chen, Jianjun Liu, Fangzhou Shu, Yong Du, Zhi Hong   +4 more
doaj   +2 more sources

A Novel Method for Band Structure Analysis of Photonic Crystal Slabs

IEEE Photonics Journal, 2011
We propose a new method to extract the modes of photonic crystal slabs and, thus, obtain their band structures. These slabs, which are 2-D periodic structures with finite thickness, can completely confine light and have the important advantage of simple ...
S. A. H. Nekuee, M. Akbari, K. Mehrany
doaj   +3 more sources

Dirac bound states in the continuum in honeycomb photonic crystal slabs [PDF]

Scientific Reports
We investigate bound states in the continuum (BICs) in dielectric photonic crystal slabs, which occur at the double Dirac point with four-fold degeneracy.
Ruey-Lin Chern, Yi-Chi Kao, Robert R. Hwang   +2 more
doaj   +2 more sources