Results 11 to 20 of about 492,094 (266)

Autonomous and In Situ Ocean Environmental Monitoring on Optofluidic Platform

Micromachines, 2020
Determining the distributions and variations of chemical elements in oceans has significant meanings for understanding the biogeochemical cycles, evaluating seawater pollution, and forecasting the occurrence of marine disasters.
Fang Wang, Jiaomeng Zhu, Longfei Chen, Yunfeng Zuo, Xuejia Hu, Yi Yang   +5 more
doaj   +1 more source

Dynamic Control of Ultrathin Electromagnetic Absorber Using Active High Impedance Metasurfaces

Frontiers in Physics, 2021
In recent years, active metasurfaces have induced more interests, which provides great freedom of wave manipulation and gives rise to many novel phenomena.
Zeyong Wei, Zeyong Wei, Hongkun Li, Hongkun Li, Weijie Xu, Weijie Xu, Yang Cao   +6 more
doaj   +1 more source

Strain Investigation on Spin-Dependent Transport Properties of γ-Graphyne Nanoribbon Between Gold Electrodes

Nanoscale Research Letters, 2021
Strain engineering has become one of the effective methods to tune the electronic structures of materials, which can be introduced into the molecular junction to induce some unique physical effects.
Yun Li, Xiaobo Li, Shidong Zhang, Liemao Cao, Fangping Ouyang, Mengqiu Long   +5 more
doaj   +1 more source

A novel scheme for ultrashort terahertz pulse generation over a gapless wide spectral range: Raman-resonance-enhanced four-wave mixing

Light: Science & Applications, 2023
Energetic ultrashort THz pulses tunable over a wide gapless spectral region can be generated by Raman-resonance-enhanced four-wave mixing in diamond.
Jiaming Le, Yudan Su, Chuanshan Tian, A. H. Kung, Y. Ron Shen   +4 more
doaj   +1 more source

Probing Interface of Perovskite Oxide Using Surface-Specific Terahertz Spectroscopy

Ultrafast Science, 2023
The surface/interface species in perovskite oxides play essential roles in many novel emergent physical phenomena and chemical processes. With low eigen-energies in the terahertz region, such species at buried interfaces remain poorly understood due to ...
Yudan Su, Jiaming Le, Junying Ma, Long Cheng, Yuxuan Wei, Xiaofang Zhai, Chuanshan Tian   +6 more
doaj   +1 more source

Actively Controlling the Topological Transition of Dispersion Based on Electrically Controllable Metamaterials

Applied Sciences, 2018
Topological transition of the iso-frequency contour (IFC) from a closed ellipsoid to an open hyperboloid provides unique capabilities for controlling the propagation of light.
Zhiwei Guo, Haitao Jiang, Yong Sun, Yunhui Li, Hong Chen   +4 more
doaj   +1 more source

Enhanced Magneto-Optical Effect in Heterostructures Composed of Epsilon-Near-Zero Materials and Truncated Photonic Crystals

Frontiers in Materials, 2022
Optical non-reciprocal transmission plays an important role in many applications such as optical isolation, switching, and integrated photonic circuits. However, the non-reciprocity of natural magneto-optical (MO) materials is too weak to be widely used ...
Shengyu Hu, Zhiwei Guo, Zhiwei Guo, Lijuan Dong, Fusheng Deng, Haitao Jiang, Hong Chen   +6 more
doaj   +1 more source

Chromosome structure at micro-scale [PDF]

Nature Reviews Genetics, 2020
Two studies in Molecular Cell report fine-scale structural profiles of mammalian genomes using Micro-C, indicating that fine chromosomal structure is regulated by diverse transcription-related features.
openaire   +2 more sources

Mechanism of Photocurrent Degradation and Contactless Healing in p-Type Mg-Doped Gallium Nitride Thin Films

Nanomaterials, 2022
Light-induced degradation (LID) phenomenon is commonly found in optoelectronics devices. Self-healing effect in halide lead perovskite solar cells was investigated since the electrons and holes in the shallow traps could escape easily at room temperature.
Xiaoyan Wu, Wei Li, Qingrong Chen, Caixia Xu, Jiamian Wang, Lingyuan Wu, Guodong Liu, Weiping Wang, Ting Li, Ping Chen, Long Xu   +10 more
doaj   +1 more source

Quick Optical Identification of the Defect Formation in Monolayer WSe2 for Growth Optimization

Nanoscale Research Letters, 2019
Bottom-up epitaxy has been widely applied for transition metal dichalcogenides (TMDCs) growth. However, this method usually leads to a high density of defects in the crystal, which limits its optoelectronic performance. Here, we show the effect of growth
Long Fang, Haitao Chen, Xiaoming Yuan, Han Huang, Gen Chen, Lin Li, Junnan Ding, Jun He, Shaohua Tao   +8 more
doaj   +1 more source