A5001372446- Semiconductor Lasers and Optical Devices
- 2D Materials and Applications
- Soil Moisture and Remote Sensing
- Spectroscopy Techniques in Biomedical and Chemical Research
- Photonic and Optical Devices
- MRI in cancer diagnosis
- Advanced MRI Techniques and Applications
- Electromagnetic Scattering and Analysis
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanowire Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Microwave Engineering and Waveguides
- Nonlinear Dynamics and Pattern Formation
- Quantum Dots Synthesis And Properties
- Nanocluster Synthesis and Applications
- Retinal and Macular Surgery
- Advanced X-ray and CT Imaging
- Cosmology and Gravitation Theories
- Block Copolymer Self-Assembly
- Mesoporous Materials and Catalysis
- Ferroptosis and cancer prognosis
- Advanced Thermodynamics and Statistical Mechanics
- Acupuncture Treatment Research Studies
University of Wisconsin–Madison
2023-2025
Sun Yat-sen University
2023-2024
University of Birmingham
2024
Sun Yat-sen Memorial Hospital
2023-2024
Luoyang Institute of Science and Technology
2024
Texas A&M University
2018-2022
Xi'an Jiaotong University
2018-2020
National Taiwan University
2010
Memorial Hospital of South Bend
2007
Pennsylvania State University
1993-2005
Abstract Neurofluid dynamics are crucial for maintaining brain homeostasis and facilitating the clearance of metabolites through coupling arterial venous blood with cerebrospinal fluid (CSF). Two-dimensional phase contrast (PC) MRI is frequently used to study neurofluids; however, separate exams typically required assessing CSF flow, which can confound analyses due asynchronous physiological measurements. To enable simultaneous assessment neurofluid dynamics, we describe evaluate a 2D PC...
The heterogeneous reactions of pure micrometer-sized oleic acid droplets with ozone were studied as a function temperature and physical state. Oxidation monitored using attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FT-IR) UV-vis spectrometry. Variations in droplet morphology due to the extent oxidation an optical microscope. Oleic maintained either solid or liquid state at 9.0 °C. aerosol was determined from IR absorbance spectra. °C rapidly converted state, which...
Lateral two-dimensional (2D) transition-metal dichalcogenide (TMD) heterostructures have recently attracted wide attention as promising materials for optoelectronic nanodevices. Due to the nanoscale width of lateral heterojunctions, study their optical properties is challenging and requires using subwavelength characterization techniques. We investigated photoresponse a 2D $\mathrm{WS}{\mathrm{e}}_{2}/\mathrm{MoS}{\mathrm{e}}_{2}$ heterostructure tip-enhanced photoluminescence (TEPL) with...
Background Deep learning (DL) often requires an image quality metric; however, widely used metrics are not designed for medical images. Purpose To develop metric that is specific to MRI using radiologists rankings and DL models. Study Type Retrospective. Population A total of 19,344 on 2916 unique pairs from the NYU fastMRI Initiative neuro database was neural network‐based training with 80%/20% training/validation split fivefold cross‐validation. Field Strength/Sequence 1.5 T 3 T1, T1...
Raman spectroscopy is a powerful tool for molecular chemical analysis and bioimaging, which shows an astonishing sensitivity when combined with huge enhancement by the coherence surface effects. Noble metal nanoparticles have been commonly used spontaneous surface-enhanced scattering (SERS) coherent anti-Stokes (SECARS) spectroscopies, as they provide large factors via electromagnetic mechanisms. Recently, two-dimensional (2D) semiconductors, such monolayer molybdenum disulfide (MoS2), were...
There has been extensive growth in both the technical development and clinical applications of MRI, establishing this modality as one most powerful diagnostic imaging tools. However, long examination image interpretation times still limit application especially emergent settings. Rapid abbreviated MRI protocols have developed alternatives to standard with reduced times, some cases limited numbers sequences, more efficiently answer specific questions. A group rapid used at authors'...
Polarimetric scattering from cloud ice crystals modeled as hexagonal columns, plates and stellar are calculated at 94 220 GHz frequencies using the finite difference time domain (FDTD) method. Two orientation models considered, In first model long axes of columns broad surfaces parallel to horizontal plane randomly oriented on this plane. The second assumes uniform random in three dimensions (3-D). ratio backscattering cross sections exhibits a steady decrease with increasing size up about...
Based on the complete set of equations thermodynamics irreversible processes a fluid in electromagnetic fields, relativistic theory influence waves simple is developed. In particular, oscillations induced by plane wave are evaluated, and energy-momentum tensor determined. It further conjectured that Minkowski's Abraham's lead to same result when matter properly taken into account. The heat conduction viscosity accompanying briefly discussed.
With the recently available very intense coherent maser light, interesting higher order Raman effects have been observed in solids, liquids, and gases. Garmire, Pandarese, Townes given a phenomenological theory of these effects. In this paper somewhat more detailed is given. The analysis based on perturbation solution Boltzmann equation for density matrix active medium. General expressions all relevant induced dipole moments absorbed or emitted Stokes anti-Stokes radiations ordinary...
We report the observation of optical switching and bistability, such related effects as hysteresis, memory, multistability, differential gain, in an electro-optically tuned cw dye laser. Similar should be observable other tunable lasers.
Chemical vapor deposition (CVD) growth of atomically thin 2D materials, such as transition metal dichalcogenides (TMDs), is a complex process that has not been completely understood. Large-scale monolayer TMDs often leads to polycrystalline films with heterogeneous morphological and optical properties. Previous studies materials by far-field photoluminescence (PL) provided insights into CVD mechanisms simple crystals, which were, however, limited in spatial resolution due the diffraction...
In order to realize the miniaturization and low cost of infrared/laser dual-mode seeker imaging system simplify optical structure, a transmission/reflection common aperture composite is designed. Firstly, overall scheme working principle are studied. The uses design at front, infrared laser signals separated by spectroscope backend enter respective detectors. whole shares same receiving aperture, structure compact, meets requirements seeker. can not only meet large field view in target...
Abstract RNase H2 is a heterotrimeric endoribonuclease that resolves RNA:DNA hybrids and genome-embedded ribonucleotides, which are implicated in DNA replication stress cancer development. Protein and/or mRNA levels of individual subunits elevated some cancers, but little known about the mechanisms or consequences upregulation. We report upregulated at protein level response to induced by oncogenes chemotherapy drugs human non-cancer cell lines. show inducible overexpression RNASEH2B subunit...
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text C. L. Tang, "Author's Reply," Appl. Opt. 2, 545-545 (1963) Export BibTex Endnote (RIS) HTML Plain alert Save article
Band gap tuning in two-dimensional transitional metal dichalcogenides (TMDs) is crucial fabricating new optoelectronic devices. High resolution photoluminescence (PL) microscopy needed for accurate band characterization. We performed tip-enhanced (TEPL) measurements of monolayer MoSe2 with nanoscale spatial resolution, providing an improved characterization the correlated topography compared conventional far field spectroscopy. also observed PL shifts at edges and investigated dependence...
An in situ method of monitoring the electron cyclotron resonance etching III-V semiconductor heterostructures is discussed for in-plane lasers. Surface reflected and Fabry-Perot interference signals determine etch depth, rate surface quality. The accuracy better than 500 /spl Aring/. monitor eliminates dependence accurate on calibrated rates, as well need selective gas etchants etch-stop layers typically required complex heterostructure devices. presented can be integrated into a digital...