Results 61 to 70 of about 54,360 (285)

Photon-assisted shot noise in graphene in the Terahertz range [PDF]

, 2016
When subjected to electromagnetic radiation, the fluctuation of the electronic current across a quantum conductor increases. This additional noise, called photon-assisted shot noise, arises from the generation and subsequent partition of electron-hole ...
Glattli, D. C., Parmentier, F. D., Roulleau, P., Serkovic-Loli, L. N.   +3 more
core   +2 more sources

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

Fast Three-dimensional Sparse Holography Imaging Algorithm for Personal Security Verification

Leida xuebao, 2016
Terahertz holographic imaging has broad applications in the field of personal security verification, concealed weapon detection, and non-destructive testing.
Liu Wei, Li Chao, Zhang Qunying, Fang Guangyou   +3 more
doaj   +1 more source

TUNABLE AND BROADBAND DIFFERENTIAL PHASE SECTIONS IN TERAHERTZ FREQUENCY RANGE [PDF]

Radio Physics and Radio Astronomy, 2016
Purpose: Studying the quasioptical tunable and broadband differential phase section (DPS) consisting of several birefringent elements (BE) on the basis of form birefringence effect. Design/methodology/approach: Using the polarization scattering matrix
O. S. Kosiak, V. I. Bezborodov, Ye. M. Kuleshov, P. K. Nesterov   +3 more
doaj   +1 more source

Coherent phonon induced optical modulation in semiconductors at terahertz frequencies [PDF]

, 2013
The coherent modulation of electronic and vibrational nonlinearities in atoms and molecular gases by intense few-cycle pulses has been used for high-harmonic generation in the soft X-ray and attosecond regime, as well as for Raman frequency combs that ...
Constantinescu Anca Monia, Hase Muneaki, Katsuragawa Masayuki, Petek Hrvoje, 長谷 宗明   +4 more
core   +2 more sources

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

Reconfigurable nonlinear photonic devices based on nanostructured graphene (review)

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
The relevance of the study is due to the need to mastering the terahertz (THz) range to increase the volume of transmitted information and is dictated by the needs of the developing technology of THz frequencies in the development of electronically ...
Galina S. Makeeva
doaj   +1 more source

Properties of InxGa1−xN films in terahertz range

Applied Physics Letters, 2012
In this letter, we report the characterization of the refractive indices and complex conductivities of a set of GaN films with different carrier concentrations, InN film, and InxGa1−xN films with indium content varying from x = 0.07 to x = 0.14 grown by metalorganic chemical vapor deposition for frequencies ranging from 0.3 to 3 THz using terahertz ...
Gauthier-Brun, A., Teng, J.H., Dogheche, El Hadj, Liu, W., Gokarna, A., Tonouchi, M., Chua, S.J., Decoster, Didier   +7 more
openaire   +2 more sources

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

Generation of spatiotemporally tailored terahertz wavepackets by nonlinear metasurfaces

Nature Communications, 2019
While the terahertz range has become increasingly important for a wide range of applications, efficient sources with bespoke output characteristics are still lacking. Here, Keren-Zur et al.
Shay Keren-Zur, Mai Tal, Sharly Fleischer, Daniel M. Mittleman, Tal Ellenbogen   +4 more
doaj   +1 more source