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- Nanjing UniversityCN850 papers
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8 papers · 2 filters
Position-sensitive spectral splitting with a plasmonic nanowire on silicon chip
Qing Hu, Di-Hu Xu, Yu Zhou +6
On-chip nanophotonics serves as the foundation for the new generation of information technology, but it is challenged by the diffraction limit of light. With the capabilities of co…
Trapping light by mimicking gravitational lensing
C. Sheng, H. Liu, Y. Wang +2
One of the most fascinating predictions of the theory of general relativity is the effect of gravitational lensing, the bending of light in close proximity to massive stellar objec…
Nonlinear Transformation of Orbital Angular Momentum through Quasi-phase Matching
Guang-hao Shao, Zi-jian Wu, Jin-hui Chen +2
We propose and investigate the quasi-phase matched (QPM) nonlinear optical frequency conversion of optical vortices in periodically poled Lithium Niobate (PPLN). Laguerre-Gaussian…
PT-symmetric optical potentials in a coherent atomic medium
Jiteng Sheng, Mohammad-Ali Miri, Demetrios N. Christodoulides +1
We demonstrate that a coherently-prepared four-level atomic medium can provide a versatile platform for realizing parity-time (PT) symmetric optical potentials. Different types of…
Diffraction Interference Induced Superfocusing in Nonlinear Talbot Effect
Dongmei Liu, Yong Zhang, Jianming Wen +6
We report a simple, novel sub-diffraction method, i.e. diffraction interference induced super-focusing in second-harmonic (SH) Talbot effect, to achieve focusing size of less than…
Coupled Magnetic Resonator Optical Waveguides - mimicking spin waves in coupled metamaterials
Hui Liu, Shi-ning Zhu
Optical resonators are important devices that control the properties of light and manipulate light-matter interaction. Various optical resonators are designed and fabricated using…