[HTML][HTML] Optical meta-waveguides for integrated photonics and beyond

Y Meng, Y Chen, L Lu, Y Ding, A Cusano… - Light: Science & …, 2021 - nature.com
The growing maturity of nanofabrication has ushered massive sophisticated optical
structures available on a photonic chip. The integration of subwavelength-structured …

Larger-than-unity external optical field confinement enabled by metamaterial-assisted comb waveguide for ultrasensitive long-wave infrared gas spectroscopy

W Liu, Y Ma, X Liu, J Zhou, C Xu, B Dong, C Lee - Nano Letters, 2022 - ACS Publications
Nanophotonic waveguides that implement long optical pathlengths on chips are promising
to enable chip-scale gas sensors. Nevertheless, current absorption-based waveguide …

Giant and tunable excitonic optical anisotropy in single-crystal halide perovskites

G Ermolaev, AP Pushkarev, A Zhizhchenko… - Nano Letters, 2023 - ACS Publications
During the last years, giant optical anisotropy has demonstrated its paramount importance
for light manipulation. In spite of recent advances in the field, the achievement of continuous …

Perspective on mode-division multiplexing

Y Su, Y He, H Chen, X Li, G Li - Applied Physics Letters, 2021 - pubs.aip.org
We review the current status of mode-division multiplexing (MDM) techniques in fibers and
on chips. Three system applications are introduced, including quasi-single mode …

Exploring van der Waals materials with high anisotropy: geometrical and optical approaches

AS Slavich, GA Ermolaev, MK Tatmyshevskiy… - Light: Science & …, 2024 - nature.com
The emergence of van der Waals (vdW) materials resulted in the discovery of their high
optical, mechanical, and electronic anisotropic properties, immediately enabling countless …

Ultra-compact, efficient and high-polarization-extinction-ratio polarization beam splitters based on photonic anisotropic metamaterials

J Zhang, X Shi, Z Zhang, K Guo, J Yang - Optics express, 2021 - opg.optica.org
Anisotropic metameterials (AM) provide a new avenue for a next-generation silicon platform
to design ultra-compact, densely integrated optical components, thus functional devices …

Crosstalk prohibition at the deep-subwavelength scale by epsilon-near-zero claddings

W Ji, J Luo, H Chu, X Zhou, X Meng, R Peng… - …, 2023 - degruyter.com
To prevent the crosstalk between adjacent waveguides in photonic integrated circuits, the
minimum thickness of the cladding layers is around half a wavelength, which imposes a …

Mathematical operations and equation solving with reconfigurable metadevices

DC Tzarouchis, MJ Mencagli, B Edwards… - Light: Science & …, 2022 - nature.com
Performing analog computations with metastructures is an emerging wave-based paradigm
for solving mathematical problems. For such devices, one major challenge is their …

Ultracompact photonic circuits without cladding layers

T Song, H Chu, J Luo, Z Cao, M Xiao, R Peng, M Wang… - Physical Review X, 2022 - APS
Cladding layers of waveguides prevent interchannel interference yet are unfavorable for the
integration of photonic circuits. Here, we report the realization of ultracompact waveguide …

Anisotropic leaky-like perturbation with subwavelength gratings enables zero crosstalk

MF Kabir, MB Mia, I Ahmed, N Jaidye… - Light: Science & …, 2023 - nature.com
Electromagnetic coupling via an evanescent field or radiative wave is a primary
characteristic of light, allowing optical signal/power transfer in a photonic circuit but limiting …