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| 1 | Polarization-robust mid-infrared carpet cloak with minimized lateral shift显示文摘With the advent and rapid development of the transformation optics and metamaterials,invisibility cloaks have captivated much attention in recent years.While most cloaking schemes suffer from limited bandwidth,the carpet cloak,which can hide an object on a reflecting plane,can operate over a broadband frequency range.However,the carpet cloaks experimentally realized thus far still have several limitations.For example,the quasi-conformal mapping carpet cloak leads to a lateral shift of the reflected light ray,while the birefringent carpet cloak only works for a specific polarization.In this work,we propose a conformal transformation scheme to tackle these two problems simultaneously.As an example,we design a mid-infrared carpet cloak in a silicon platform and demonstrate its polarization-insensitive property as well as the minimized lateral shift over a broad frequency band from 24 to 28.3 THz. | YAO HUANG JINGJING ZHANG JINHUI ZHOU BO QIANG ZHENGJI XU LIN LIU JIFANG TAO NICOLAS KOSSOWSKI QIJIE WANG YU LUO | 2021 | Photonics Research2021，9，6： | 1 |
| 2 | Calculation Analysis of Pressure Wave Velocity in Gas and Drilling Mud Two-Phase Fluid in Annulus during Drilling Operations显示文摘 | Yuanhua Lin Xiangwei Kong Yijie Qiu Qiji Yuan Waqar Khan | 2013 | Mathematical Problems in Engineering2013，，： | 1 |
| 3 | Organic Optoelectronic Synapses for Sound Perception显示文摘The neuromorphic systems for sound perception is under highly demanding for the future bioinspired electronics and humanoid robots.However,the sound perception based on volume,tone and timbre remains unknown.Herein,organic optoelectronic synapses(OOSs)are constructed for unprecedented sound recognition.The volume,tone and timbre of sound can be regulated appropriately by the input signal of voltages,frequencies and light intensities of OOSs,according to the amplitude,frequency,and waveform of the sound.The quantitative relation between recognition factor(ζ)and postsynaptic current(I=I_(light)−I_(dark))is established to achieve sound perception.Interestingly,the bell sound for University of Chinese Academy of Sciences is recognized with an accuracy of 99.8%.The mechanism studies reveal that the impedance of the interfacial layers play a critical role in the synaptic performances.This contribution presents unprecedented artificial synapses for sound perception at hardware levels. | Yanan Wei Youxing Liu Qijie Lin Tianhua Liu Song Wang Hao Chen Congqi Li Xiaobin Gu Xin Zhang Hui Huang | 2023 | Nano-Micro Letters2023，15，9： | 0 |
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