Results 51 to 60 of about 31,529 (265)

Research progress in terahertz metamaterials and their applications in imaging

Cailiao gongcheng, 2020
Electromagnetic metamaterials have attracted more and more research interest due to their exotic physical properties and important applications in manipulating electromagnetic waves.
FU Xiao-jian, SHI Lei, CUI Tie-jun
doaj   +1 more source

CMOS compatible metamaterial absorbers for hyperspectral medium wave infrared imaging and sensing applications [PDF]

, 2018
We experimentally demonstrate a CMOS compatible medium wave infrared metal-insulator-metal (MIM) metamaterial absorber structure where for a single dielectric spacer thickness at least 93% absorption is attained for 10 separate bands centred at 3.08, 3 ...
Cumming, David S., Escorcia-Carranza, Ivonne, Grant, James, Kenney, Mitchell, Shah, Yash D.   +4 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Detection of melatonin and 5-HTP in dietary supplements based on multiple spectra

Frontiers in Nutrition
IntroductionMelatonin and 5-hydroxytryptophan (5-HTP), known for benefits in regulating sleep and combating depression, respectively, are incorporated into dietary supplements.
Huiyu Yang, Huiyu Yang, Huiyu Yang, Xinrui Zhang, Xinrui Zhang, Xinrui Zhang, Yang Gao, Yang Gao, Yang Gao, Zhuang Peng, Zhuang Peng, Zhuang Peng, Bo Su, Bo Su, Bo Su, Kai Li, Cunlin Zhang, Cunlin Zhang, Cunlin Zhang   +18 more
doaj   +1 more source

Terahertz Spectral Signatures of Ultrafast Spin Transports in Ferromagnetic Heusler Alloy

Advanced Physics Research, 2023
Although the Co‐based Heusler compounds are predicted to be half‐metals, their sub‐picosecond demagnetization dynamics upon laser excitation show a transition‐metal‐like behavior.
Zuanming Jin, Yingyu Guo, Yan Peng, Zeyu Zhang, Jinyi Pang, Zongzhi Zhang, Fan Liu, Bin Ye, Yexin Jiang, Guohong Ma, Chao Zhang, Alexey V. Balakin, Alexander P. Shkurinov, Yiming Zhu, Songlin Zhuang   +14 more
doaj   +1 more source

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

Advanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou, Jiongyi Yan, Dick F. Firdaus, Amy Jin, Jiaxuan Li, Shushan Wang, Ran Chen, Xudong Tao, Zehao Ji, Yi Liu, Zichen Wang, Christos Margadji, Mark Kotter, J. Axel Zeitler, George G. Malliaras, Ronan Daly, Andrew Gleadall, Sebastian W. Pattinson   +17 more
wiley   +1 more source

THz generation using a reflective stair-step echelon

, 2015
We present a novel method for THz generation in lithium niobate using a reflective stair-step echelon structure. The echelon produces a discretely tilted pulse front with less angular dispersion compared to a high groove-density grating.
Huang, W. Ronny, Nelson, Keith A., Ofori-Okai, Benjamin K., Sivarajah, Prasahnt   +3 more
core   +1 more source

Waveguide mode imaging and dispersion analysis with terahertz near-field microscopy [PDF]

, 2009
Propagation of terahertz waves in hollow metallic waveguides depends on the waveguide mode. Near-field scanning probe terahertz microscopy is applied to identify the mode structure and composition in dielectric-lined hollow metallic waveguides.
Bowden, B., Harrington, J.A., Mark, P.R., Mitrofanov, O., Tan, T.   +4 more
core   +1 more source

Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors

Advanced Functional Materials, EarlyView.
π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato, Soh Kushida, Nafees Umar Draz, Dan Kyotani, Emanuel Smarsly, Kyota Yoshinaga, Wenhao He, Uwe H. F. Bunz, Kazuhiro Marumoto, Tatsuya Mori, Yohei Yamamoto   +10 more
wiley   +1 more source

Theoretical Investigation on the Mechanism and Law of Broadband Terahertz Wave Detection Using Rydberg Quantum State

IEEE Photonics Journal, 2022
The bandwidth and sensitivity of traditional terahertz detection devices are limited by material properties and working temperature. Here, we proposed a four-level Rydberg atom detection method, which can realize real-time detection for the absolute ...
Yanchen Zhou, Ruijie Peng, Jinbiao Zhang, Linjie Zhang, Zhenfei Song, Zhigang Feng, Yan Peng   +6 more
doaj   +1 more source