Observation of accurately designed bound states in the continuum in momentum space

J Wu, J Chen, X Qi, Z Guo, J Wang, F Wu, Y Sun… - Photonics …, 2024 - opg.optica.org
Bound states in the continuum (BICs) in artificial photonic structures have received
considerable attention since they offer unique methods for the extreme field localization and …

Approaching the adiabatic infimum of topological pumps on thin-film lithium niobate waveguides

S Wu, W Song, J Sun, J Li, Z Lin, X Liu, S Zhu… - Nature …, 2024 - nature.com
Topological pumps reveal topological insights of adiabatic mode evolution, in which
adiabaticity plays a crucial role. However, the adiabatic infimum, ie, the possible shortest …

Mode-cleaning in antisymmetrically modulated non-Hermitian waveguides

MN Akhter, M Botey, R Herrero, K Staliunas - Nanophotonics, 2024 - degruyter.com
We demonstrate all-optical spatial mode-cleaning in non-Hermitian waveguides. The effect
is accounted by a unidirectional coupling among the modes resulting from a simultaneous …

Wafer-Scale Periodic Poling of Thin-Film Lithium Niobate

M Chen, C Wang, XH Tian, J Tang, X Gu, G Qian, K Jia… - Materials, 2024 - mdpi.com
Periodically poled lithium niobate on insulator (PPLNOI) offers an admirably promising
platform for the advancement of nonlinear photonic integrated circuits (PICs). In this context …

[HTML][HTML] Non-Hermitian mode management in periodically modulated waveguide amplifiers

MN Akhter, M Botey, R Herrero, K Staliunas - APL photonics, 2024 - pubs.aip.org
We propose an efficient mode management scheme in active nonlinear multimode fibers
based on non-Hermitian potentials in the longitudinal direction with an antisymmetric …

Shortcuts to adiabatic non-Abelian braiding on silicon photonic chips

W Song, X Liu, J Sun, O You, S Wu, C Chen… - arxiv preprint arxiv …, 2024 - arxiv.org
The non-Abelian braiding describes the exchange behavior of anyons, which can be
leveraged to encode qubits for quantum computing. Recently, this concept has been …

Asymmetric mode-coupling in Antisymmetric non-Hermitian waveguides

MN Akhter, R Herrero, K Staliunas… - 2024 24th International …, 2024 - ieeexplore.ieee.org
We demonstrate all-optical spatial mode-cleaning in non-Hermitian waveguides by
modulating refractive index and gain/loss simultaneously along graded index multimodal …