33 citations · 54 across the 12 of their papers we have counts for
12 papers
Tunable Mid-Infrared Chiral Selective Absorber Based on Asymmetric V-Shaped Metasurfaces Driven by Chiral quasi-Bound State in the Continum
Yuqing Liu, Yi Wang, Ruihan Ma +3
Efficient discrimination of circularly polarized light (CPL) is of great significance in photonics. In this study, we propose a nanophotonic device based on asymmetric V-shaped met…
High Discrimination Ratio, Broadband Circularly Polarized Light Photodetector Using Dielectric Achiral Nanostructures
Guanyu Zhang, Xiaying Lyu, Yulu Qin +10
The on-chip measurement of polarization states plays an increasingly crucial role in modern sensing and imaging applications. While high-performance monolithic linearly polarized p…
Mechanisms of chiral plasmonics -- scattering, absorption and photoluminescence
Yuqing Cheng, Mengtao Sun
Chirality is a concept that one object is not superimposable on its mirror image by translation and rotation. In particular, chiral plasmonics have been widely investigated due to…
Classic Harmonic Oscillator Model of Coupled Metal Nanoparticles with Arbitrary Configuration in Plane
Yuqing Cheng
A classic harmonic oscillator model is developed to investigate the optical properties of coupled metal nanoparticles (MNPs) with arbitrary configuration in plane. The coupling coe…
Unified Treatment for Scattering, Absorption, and Photoluminescence of coupled Metallic Nanoparticles with Vertical Polarized Excitation
Yuqing Cheng, Mengtao Sun
Optical properties of coupled metallic particles (MNPs) have been widely reported due to their unique characteristics such as peak shift/splitting of the coupling spectra and elect…
Absorption and photoluminescence properties of coupled plasmon-exciton (plexciton) systems
Yuqing Cheng, Mengtao Sun
Plexciton is the formation of new hybridized energy states originated from the coupling between plasmon and exciton. To reveal the optical properties of both exciton and plexciton,…
Unified Treatment for Scattering and Photoluminescence Properties of Strongly Coupled Metallic Nanoparticle Chains based on a Coupling Classic Harmonic Oscillator Model
Yuqing Cheng, Mengtao Sun
We present a multimer coupling classic harmonic oscillator model to reveal the scattering and photoluminescence (PL) properties of metallic nanoparticle chains. Taking particle num…
Understanding photoluminescence of coupled metallic nanostructures based on a coupling classic harmonic oscillator model
Yuqing Cheng, Mengtao Sun
Photoluminescence (PL) phenomenon from metallic nanostructures has been explained and understood by several point of views. One of them is based on the classic harmonic oscillator…
Random-walk shielding-potential viscosity model for warm dense metals
Yuqing Cheng, Haifeng Liu, Yong Hou +7
We develop a novel model, called the ``random-walk shielding-potential viscosity model'' (RWSP-VM) that introduces the statistics of random-walk ions and the Debye shielding effect…
Mutually enhancing light emission between plasmonic nanostructures and fluorescent emitters
Jingyi Zhao, Yuqing Cheng, Hongming Shen +4
We demonstrate that the fluorescent emitters can increase light emission from the plasmonic nanostructures in turn. With the help of atomic force microscopy, a hybrid system consis…
Directional Enhanced Probe for Side-Illumination Tip Enhanced Spectroscopy
Hongming Shen, Guowei Lu, Zhengmin Cao +5
We demonstrate a high-performance apertureless near-field probe made of a tapered metal tip with a set of periodic shallow grooves near the apex. The spontaneous emission from a si…
Plasmonic nano-resonator enhanced one-photon luminescence from single gold nanorods
Keyu Xia, Yingbo He, Hongming Shen +3
Strong Stokes and anti-Stokes one-photon luminescence from single gold nanorods is measured in experiments. It is found that the intensity and polarization of the Stokes and anti-S…