A5001705168- Plasmonic and Surface Plasmon Research
- 2D Materials and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- Photonic and Optical Devices
- Perovskite Materials and Applications
- Graphene research and applications
- Quantum and electron transport phenomena
- Molecular Junctions and Nanostructures
- Strong Light-Matter Interactions
- Semiconductor Quantum Structures and Devices
- Thin-Film Transistor Technologies
- Photonic Crystals and Applications
- Metamaterials and Metasurfaces Applications
- Nanowire Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Mechanical and Optical Resonators
- Bone Tissue Engineering Materials
- GaN-based semiconductor devices and materials
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Fiber Laser Technologies
- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
University of California, Berkeley
2019-2024
Yale University
2024
Communication University of China
2024
Max Planck Institute for the Science of Light
2024
Miller College
2022-2024
Fudan University
2024
Northwestern University
2015-2023
Hong Kong University of Science and Technology
2023
Ningxia University
2023
Sichuan University
2017-2022
Plasmonics is a rapidly developing field at the boundary of physical optics and condensed matter physics. It studies phenomena induced by associated with surface plasmons—elementary polar excitations bound to surfaces interfaces good nanostructured metals. This Roadmap written collectively prominent researchers in plasmonics. encompasses selected aspects nanoplasmonics. Among them are fundamental aspects, such as quantum plasmonics based on quantum-mechanical properties both underlying...
Quantum emitters in two-dimensional materials are promising candidates for studies of light-matter interaction and next generation, integrated on-chip quantum nanophotonics. However, the realization nanophotonic systems requires coupling to optical cavities resonators. In this work, we demonstrate hybrid which 2D hexagonal boron nitride (hBN) deterministically coupled high-quality plasmonic nanocavity arrays. The nanoparticle arrays offer a high-quality, low-loss cavity same spectral range...
Plasmonic surface lattice resonances (SLRs) are mixed light-matter states emergent in a system of periodically arranged metallic nanoparticles (NPs) under the constraint that array spacing is able to support standing wave optical-frequency light. The properties SLRs derive from two separate physical effects; electromagnetic (plasmonic) response metal NPs and (photonic cavity modes) associated with NPs. Metal NPs, especially free-electron metals such as silver, gold, aluminum, alkali metals,...
As an analogy of the magic-angle twisted bilayer graphene, a coupled-mode theory is formulated for low-angle honeycomb photonic crystals, discovering flat bands with non-Anderson-type localization.
Moiré lattices formed in twisted van der Waals bilayers provide a unique, tunable platform to realize coupled electron or exciton unavailable before. While twist angle between the bilayer has been shown be critical parameter engineering moiré potential and enabling novel phenomena electronic systems, systematic experimental study as function of is still missing. Here we show that not only are excitons robust even large angles, but also properties dependant on, controllable by, reciprocal...
This paper reports a robust and stretchable nanolaser platform that can preserve its high mode quality by exploiting hybrid quadrupole plasmons as an optical feedback mechanism. Increasing the size of metal nanoparticles in array introduce ultrasharp lattice plasmon resonances with out-of-plane charge oscillations are tolerant to lateral strain. By patterning these onto elastomeric slab surrounded liquid gain, we realized reversible, tunable nanolasing strain sensitivity no hysteresis. Our...
ConspectusRationally assembled nanostructures exhibit distinct physical and chemical properties beyond their individual units. Developments in nanofabrication techniques have enabled the patterning of a wide range nanomaterial designs over macroscale (>in.2) areas. Periodic metal show long-range diffractive interactions when lattice spacing is close to wavelength incident light. The collective coupling between nanoparticles introduces sharp intense plasmonic surface resonances, contrast...
The tailored spatial polarization of coherent light beams is important for applications ranging from microscopy to biophysics quantum optics. Miniaturized sources are needed integrated, on-chip photonic devices with desired vector beams; however, this issue unresolved because most lasers rely on bulky optical elements achieve such control. Here, we report dot-plasmon engineered patterns controllable by near-field coupling colloidal dots metal nanoparticles. Conformal coating CdSe-CdS...
Periodic metal nanoparticle (NP) arrays support narrow lattice plasmon resonances that can be tuned by changing the localized surface plasmons of individual NPs in array, NP periodicity, and dielectric environment. In this paper, we report superlattice supported hierarchical Au arrays, where finite (patches) are organized into with larger periodicities. We show described coupling single-patch Bragg modes defined patch periodicity. Superlattice often significantly narrower than exhibit...
Because of their large figures merit, surface lattice resonances (SLRs) in metal nanoparticle arrays are very promising for chemical and biomolecular sensing both liquid gas media. SLRs sensitive to refractive index changes near the nanoparticles (surface sensitivity) volume between them (bulk sensitivity). its intrinsic surface-sensitivity a power law dependence on electric fields, second harmonic generation (SHG) spectroscopy can improve upon sensitivities SLRs. In this report SHG...
We report how the direction of quantum dot (QD) lasing can be engineered by exploiting high-symmetry points in plasmonic nanoparticle (NP) lattices. The nanolaser architecture consists CdSe-CdS core-shell QD layers conformally coated on two-dimensional square arrays Ag NPs. Using waveguide-surface lattice resonances (W-SLRs) near Δ point Brillouin zone as optical feedback, we achieved from gain CdS shells at off-normal emission angles. Changing periodicity lattices enables other (Γ or M) to...
This paper reports how geometric effects in low-symmetry plasmonic nanoparticle arrays can produce polarization-dependent lasing responses. We developed a scalable fabrication procedure to pattern rhombohedral of aluminum anisotropic nanoparticles that support lattice plasmon modes from both first-order and second-order diffraction coupling. found shape be used engineer the spatial overlap between electromagnetic hot spots different dye gain lasing. The behavior revealed plasmon–exciton...
This paper describes a reconfigurable metalens system that can image at visible wavelengths based on arrays of coupled plasmonic nanoparticles. These lenses manipulated the wavefront and focused light by exciting surface lattice resonances were tuned patterned polymer blocks single-particle sites. Predictive design dielectric nanoblocks was performed using an evolutionary algorithm to create range three-dimensional focusing responses. For scalability, we demonstrated simple technique for...