A5100460459- Plasmonic and Surface Plasmon Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Strong Light-Matter Interactions
- Quantum Dots Synthesis And Properties
- Metamaterials and Metasurfaces Applications
- CCD and CMOS Imaging Sensors
- Particle Detector Development and Performance
- Optical Coatings and Gratings
- Advanced Fiber Optic Sensors
- COVID-19 Clinical Research Studies
- Luminescence and Fluorescent Materials
- Advanced Statistical Process Monitoring
- Orbital Angular Momentum in Optics
- Reinforcement Learning in Robotics
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Photocathodes and Microchannel Plates
- Reliability and Maintenance Optimization
- Elasticity and Material Modeling
- Robotic Locomotion and Control
- Thermal Radiation and Cooling Technologies
- ECG Monitoring and Analysis
- Nanoplatforms for cancer theranostics
- Nanowire Synthesis and Applications
Emory University
2024
Jining Medical University
2024
Northwestern University
2015-2020
Karlsruhe Institute of Technology
2019
Wuhan University of Technology
2017
University of Hong Kong
2015
Hong Kong Polytechnic University
2015
Purdue University West Lafayette
2013
State Street (United States)
2013
Shanghai University
2012
Metal nanoparticle arrays that support surface lattice resonances have emerged as an exciting platform for manipulating light–matter interactions at the nanoscale and enabling a diverse range of applications. Their recent prominence can be attributed to combination desirable photonic plasmonic attributes: high electromagnetic field enhancements extended over large volumes with long-lived lifetimes. This Review will describe design rules achieving high-quality optical responses from metal...
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...
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...
Plasmon lasers support cavity structures with sizes below that of the diffraction limit. However, most plasmon-based show bidirectional lasing emission or limited far-field directionality and large radiative losses. Here, we report unidirectional from ultrasmooth, template-stripped two-dimensional (2D) plasmonic crystals. Optically pumped 2D crystals (Au Ag) surrounded by dye molecules exhibited in a single direction their wavelength could be tuned modulating dielectric environment. We found...
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...
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...
Colloidal quantum dot (CQD) assemblies exhibit interesting optoelectronic properties when coupled to optical resonators ranging from Purcell-enhanced emission the emergence of hybrid electronic and photonic polariton states in weak strong coupling limits, respectively. Here, experiments exploring weak-to-strong transition CQD-plasmonic lattice devices at room temperature are presented for varying CQD concentrations. To interpret these results, generalized retarded Fano-Anderson effective...
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...
Achieving propagation lengths in hybrid plasmonic systems beyond typical values of tens micrometers is important for quantum plasmonics applications. We report long-range optical energy due to excitons semiconductor dots (SQDs) being strongly coupled surface lattice resonance (SLRs) silver nanoparticle arrays. Photoluminescence (PL) measurements provide evidence an exciton-SLR (ESLR) mode extending at least 600 μm from the excitation region. also observe additional with range well ESLR and...
Abstract This paper describes a symmetry‐breaking plasmonic lattice structure that can support narrow resonances as optical feedback for nanolasing. A scalable technique is developed to fabricate nanocrescent arrays with low‐structural symmetry unit cells achieve in‐plane quadrupolar plasmon modes. These plasmons extremely linewidths preserve nonzero net dipole moments under normal excitation. Ultrafast band‐edge lasing be switched on and off by changing the polarization of incident pump...
This review focuses on coherent light sources at the nanoscale, and specifically lasers exploiting plasmonic cavities that can beat diffraction limit of light. Conventional exhibit coherent, intense, directional emission with cavity sizes much larger than their operating wavelength. Plasmon show ultrasmall mode confinement, support strong light-matter interactions, represent a class devices extremely small sizes. We discuss differences between plasmon traditional ones, we highlight advances...
This paper compares plasmon nanolasing and corresponding ultrafast dynamics supported by Al Au nanoparticle arrays. By tuning size, we achieved high-quality surface lattice resonances from both dipolar plasmons hybrid quadrupolar at near-infrared wavelengths. We demonstrated that the modes can serve as optical feedback for plasmonic nanolasing. Even wavelength of its interband transition, showed properties similar to Au. Also, independent type cavity mode used feedback, lasing thresholds
Significance The precise organization of molecular and functional nanoscale building blocks is a long-standing challenge in nanoscience. In particular, overlapping emission with collective optical excitations at the can result exquisite control over intensity, wavelength, direction emitted light. This work describes how positioning molecules that are components crystalline material called metal–organic frameworks (MOFs) around plasmonic nanoparticle arrays strongly enhanced wavelengths...
Lattice plasmon cavity modes combined with optical gain can exhibit directional and tunable lasing emission at room temperature. However, the mechanistic details governing dynamics before action are not understood. This paper describes how long photon lifetimes of lattice be correlated ultrafast amplified spontaneous emission. Lasing from band-edge plasmons propagating showed rise times on order tens picoseconds, during which inverted population in was first generated then followed by energy...
Youth and young adults have a high prevalence of major depressive disorder (MDD). Limited longitudinal research has explored the relationship between different dimensions psychological stress MDD. This study aimed to estimate effect on risk first onset MDD in sample Chinese freshmen.
Autonomous wall cutting is described using an Atlas humanoid robot. An integrated wall-cutting skill presented, which only requires operator to issue supervisory-level commands prescribe a desired path, leading autonomous cutting.
KALYPSO is a novel detector operating at line rates above 10 Mfps. It consists of board connected to FPGA based readout card for real time data processing. The holds Si or InGaAs linear array sensor, with spectral sensitivity ranging from 400 nm 2600 nm, which custom made front-end ASIC. A framework performs the In this contribution, we present system, electronics and heterogeneous infrastructure machine learning currently in use several synchrotron facilities beam diagnostics as well...
Synchrotron light sources operate with bunch repetition rates in the MHz regime. The longitudinal and transverse beam dynamics of these electron bunches can be investigated characterized by experiments employing linear array detectors. To improve performance modern diagnostics overcome limitations commercially available detectors, we have at KIT developed KALYPSO, a detector system operating an unprecedented frame rate up to 12 MHz. facilitate integration different experiments, modular...