Engineering plasmonic hot carrier dynamics toward efficient photodetection

Y Zhu, H Xu, P Yu, Z Wang - Applied physics reviews, 2021 - pubs.aip.org
Nonradiative decay of surface plasmons (SPs) is usually considered an unwanted process.
However, recent studies have proven that hot carriers generated from nonradiative SP …

[HTML][HTML] Recent progress in chiral absorptive metamaterials

E Ashalley, CP Ma, YS Zhu, HX Xu, P Yu… - Journal of Electronic …, 2021 - Elsevier
Chiral metamaterial absorbers (CMMAs), a particular class of chiral metamaterials that
refuse the transmission of incident radiation and exhibit different optical responses upon …

Broadband Tamm plasmon-enhanced planar hot-electron photodetector

J Wang, Y Zhu, W Wang, Y Li, R Gao, P Yu, H Xu… - Nanoscale, 2020 - pubs.rsc.org
Here, we propose a planar hot-electron photodetector based on broadband Tamm plasmon
resonance using a TiN layer, n-type doped Si layer, and seven pairs of DBRs. Simulation …

Dynamically switchable broadband and triple-band terahertz absorber based on a metamaterial structure with graphene

Z Chen, J Chen, H Tang, T Shen, H Zhang - Optics Express, 2022 - opg.optica.org
This paper proposes a terahertz absorber with a simple four-layered structure that can be
dynamically switched between broadband and triple-band by controlling the chemical …

Engineering electrode interfaces for telecom-band photodetection in MoS2/Au heterostructures via sub-band light absorption

C Hong, S Oh, VK Dat, S Pak, SN Cha, KH Ko… - Light: Science & …, 2023 - nature.com
Transition metal dichalcogenide (TMD) layered semiconductors possess immense potential
in the design of photonic, electronic, optoelectronic, and sensor devices. However, the sub …

Multifunctional terahertz device based on a VO2-assisted metamaterial for broadband absorption, polarization conversion, and filtering

Z Chen, J Chen, H Tang, T Shen… - Optical Materials Express, 2023 - opg.optica.org
This paper proposes a multifunctional terahertz device based on VO_2 with a simple
structure that needs only one step lithography. The designed device can realize broadband …

Plasmonic hot-electron photodetection with quasi-bound states in the continuum and guided resonances

W Wang, LV Besteiro, P Yu, F Lin, AO Govorov… - …, 2021 - degruyter.com
Hot electrons generated in metallic nanostructures have shown promising perspectives for
photodetection. This has prompted efforts to enhance the absorption of photons by metals …

Fabrication of Highly Photosensitive MoS2 Photodetector Films Using Rapid Electrohydrodynamic‐Jet Printing Process

S Hong, S Baek, TTT Can, WS Choi… - Advanced Electronic …, 2022 - Wiley Online Library
Molybdenum disulfide (MoS2) is a representative transition metal dichalcogenide (TMD) that
has been extensively studied as a potential semiconducting material for next generation …

High-responsivity MoS2 hot-electron telecom-band photodetector integrated with microring resonator

Q Zhang, Y Ji, S Hu, Z Li, C Li, L Gu, R Tian… - Applied Physics …, 2022 - pubs.aip.org
We report a high-responsive hot-electron photodetector based on the integration of an Au–
MoS 2 junction with a silicon nitride microring resonator (MRR) for detecting telecom-band …

Phase change material based hot electron photodetection

SK Chamoli, G Verma, SC Singh, C Guo - Nanoscale, 2021 - pubs.rsc.org
We introduce a phase change material (PCM) based metal–dielectric–metal (MDM) cavity of
gold (Au)–antimony trisulfide (Sb2S3)–Au as a hot electron photodetector (HEPD). Sb2S3 …