Ruhao Pan
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View article: Ge <sub>2</sub> Sb <sub>2</sub> Se <sub>4</sub> Te‐Based Optical Switch with Ultra‐High Contrast Ratio by Multilayer Fabry–Perot Cavity
Ge <sub>2</sub> Sb <sub>2</sub> Se <sub>4</sub> Te‐Based Optical Switch with Ultra‐High Contrast Ratio by Multilayer Fabry–Perot Cavity Open
Optical switches always desire a high contrast ratio in optical logic circuits and optical communication devices. Although phase change materials are widely applied to design optical switches for their rapid phase change, the high contrast…
View article: Optical moiré bound states in the continuum
Optical moiré bound states in the continuum Open
Trapping electromagnetic waves within the radiation continuum holds significant implications in the field of optical science and technology. Photonic bound states in the continuum (BICs) present a distinctive approach for achieving this fu…
View article: One-Step Dry-Etching Fabrication of Tunable Two-Hierarchical Nanostructures
One-Step Dry-Etching Fabrication of Tunable Two-Hierarchical Nanostructures Open
Two-hierarchical nanostructures, characterized by two distinct configurations along the height direction, exhibit immense potential for applications in various fields due to their significantly enhanced controllable degree compared to sing…
View article: Phase Change Materials‐Based Bilayer Metasurfaces for Near‐Infrared Photonic Routing (Adv. Funct. Mater. 14/2024)
Phase Change Materials‐Based Bilayer Metasurfaces for Near‐Infrared Photonic Routing (Adv. Funct. Mater. 14/2024) Open
Near-Infrared Photonic Routing In article number 2310626, Changzhi Gu, Haiming Guo, Junjie Li, and co-workers demonstrate a phase change materials-based bilayer programmable metasurface for near-infrared photonic routing. Each pixel of the…
View article: Reconfigurable Micro/Nano‐Optical Devices Based on Phase Transitions: From Materials, Mechanisms to Applications
Reconfigurable Micro/Nano‐Optical Devices Based on Phase Transitions: From Materials, Mechanisms to Applications Open
In recent years, numerous efforts have been devoted to exploring innovative micro/nano‐optical devices (MNODs) with reconfigurable functionality, which is highly significant because of the progressively increasing requirements for next‐gen…
View article: Height‐Gradiently‐Tunable Nanostructure Arrays by Grayscale Assembly Nanofabrication for Ultra‐realistic Imaging (Laser Photonics Rev. 17(9)/2023)
Height‐Gradiently‐Tunable Nanostructure Arrays by Grayscale Assembly Nanofabrication for Ultra‐realistic Imaging (Laser Photonics Rev. 17(9)/2023) Open
Height-Gradiently-Tunable Nanostructure Arrays by Grayscale Assembly Nanofabrication for Ultra-realistic Imaging The height gradient of nanostructures can hardly be achieved due to the limitations of fabrication techniques. In article numb…
View article: In situ surface-enhanced Raman scattering detection of biomolecules in the deep ocean
In situ surface-enhanced Raman scattering detection of biomolecules in the deep ocean Open
In this study, we successfully developed a new type of surface-enhanced Raman scattering insertion probe (RiP-SERS) applicable to the deep sea using previously prepared Coccinella septempunctata-shaped SERS substrate, and successfully obta…
View article: Strong and Omnidirectional Light Absorption from Ultraviolet to Near‐Infrared Using GST Metasurface (Laser Photonics Rev. 17(1)/2023)
Strong and Omnidirectional Light Absorption from Ultraviolet to Near‐Infrared Using GST Metasurface (Laser Photonics Rev. 17(1)/2023) Open
Metasurface Perfect Absorbers In article number 2200364, Haiming Guo, Junjie Li, and colleagues present a GST-based metasurface perfect absorber with strong and omnidirectional absorption of unpolarized light, covering an ultrabroadband fr…
View article: One-step method to prepare coccinellaseptempunctate-like silver nanoparticles for high sensitivity SERS detection
One-step method to prepare coccinellaseptempunctate-like silver nanoparticles for high sensitivity SERS detection Open
The surface morphology of metal particles can be adjusted by the annealing process to enhance the activity of Raman substrate and achieve an ultra-low concentration detection limitation. In this study, a surface-enhanced Raman scattering (…
View article: Bidirectional Origami Inspiring Versatile 3D Metasurface (Adv. Mater. Technol. 8/2022)
Bidirectional Origami Inspiring Versatile 3D Metasurface (Adv. Mater. Technol. 8/2022) Open
Bidirectional Origami In article number 2200373, Changzhi Gu, Junjie Li, and co-workers demonstrate bidirectional origami based on focused ion beam (FIB)-induced stress for various of materials, and the Monte Carlo simulations show that th…
View article: Atomic Layer Assembly Based on Sacrificial Templates for 3D Nanofabrication
Atomic Layer Assembly Based on Sacrificial Templates for 3D Nanofabrication Open
Three-dimensional (3D) nanostructures have attracted widespread attention in physics, chemistry, engineering sciences, and biology devices due to excellent functionalities which planar nanostructures cannot achieve. However, the fabricatio…
View article: 3D Bended Metasurfaces: Asymmetrical Chirality in 3D Bended Metasurface (Adv. Funct. Mater. 31/2021)
3D Bended Metasurfaces: Asymmetrical Chirality in 3D Bended Metasurface (Adv. Funct. Mater. 31/2021) Open
In article number 2100689, Changzhi Gu, Junjie Li, and co-workers successfully fabricate a 3D bended metasurface with arrays of asymmetric split ring resonators using focused ion beam-defined origami. Both giant circular dichroism (CD) and…
View article: Electromechanically reconfigurable optical nano-kirigami
Electromechanically reconfigurable optical nano-kirigami Open
Kirigami, with facile and automated fashion of three-dimensional (3D) transformations, offers an unconventional approach for realizing cutting-edge optical nano-electromechanical systems. Here, we demonstrate an on-chip and electromechanic…
View article: Plasmonic Hybrids of MoS2 and 10-nm Nanogap Arrays for Photoluminescence Enhancement
Plasmonic Hybrids of MoS2 and 10-nm Nanogap Arrays for Photoluminescence Enhancement Open
Monolayer MoS2 has attracted tremendous interest, in recent years, due to its novel physical properties and applications in optoelectronic and photonic devices. However, the nature of the atomic-thin thickness of monolayer MoS2 limits its …
View article: Nanocracking and metallization doubly defined large-scale 3D plasmonic sub-10 nm-gap arrays as extremely sensitive SERS substrates
Nanocracking and metallization doubly defined large-scale 3D plasmonic sub-10 nm-gap arrays as extremely sensitive SERS substrates Open
Stress-induced cracking and metallization are combined to fabricate controllably large-scale 3D plasmonic sub-10 nm-gap arrays for extremely sensitive SERS detection application.