Results 81 to 90 of about 3,826 (299)

Thermal Radiation Emission From 3D Graphene Networks

Advanced Materials Interfaces, EarlyView.
Three‐dimensional graphene networks are demonstrated as exceptional broadband thermal emitters, exhibiting high‐intensity, spectrally homogeneous emission and strong mechanical flexibility compared to conventional emitters like silicon carbide.
Maria Chiara Paolozzi, Emanuele Scoppi, Jacopo Sera, Salvatore Macis, Antonio Grilli, Samuel Jeong, Yoshikazu Ito, Stefano Lupi   +7 more
wiley   +1 more source

Uncooled detectors of continuum terahertz radiation

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
THz continuum spectral photometry has new and unique applications in different civil and military areas presenting a number of distinctive advantages on the well known microwaves or mid- to near-infrared technologies.
P. Kaufmann, R. Marcon, A.S. Kudaka, M. M. Cassiano, L.O.T. Fernandes, A. Marun, P. Pereyra, R. Godoy, E. Bortolucci, M. Beny Zakia, J.A. Diniz, A.M. Pereira Alves da Silva, A.V. Timofeevsky, V.A. Nikolaev   +13 more
doaj   +1 more source

Shadow‐Free Back‐Contact Perovskite Thin‐Film Detectors for Direct Extreme‐Ultraviolet and Soft X‐Ray Sensing

Advanced Materials Interfaces, EarlyView.
A triple‐cation perovskite detector with a quasi‐interdigitated back‐contact architecture enables highly sensitive and linear EUV/soft x‐ray detection by minimizing electrode shadowing and enhancing charge extraction. Efficient interfacial carrier collection and rapid temporal response highlight the potential of back‐contact‐engineered perovskites for ...
Jingying Liu, Siqi Deng, Mosarof Hossain, Udo Bach, Kaijian Xing, Qingdong Ou   +5 more
wiley   +1 more source

Intracavity terahertz optical parametric oscillators

, 2011
This thesis describes the design and implementation of several novel, nanosecond pulsed, intracavity optical parametric oscillators for the generation of terahertz radiation.
Walsh, David A.
core  

Sensitive Terahertz Detection and Imaging Driven by the Photothermoelectric Effect in Ultrashort‐Channel Black Phosphorus Devices

Advanced Science, 2020
Terahertz (THz) photon detection is of particular appealing for myriad applications, but it still lags behind efficient manipulation with electronics and photonics due to the lack of a suitable principle satisfying both high sensitivity and fast response
Wanlong Guo, Zhuo Dong, Yijun Xu, Changlong Liu, Dacheng Wei, Libo Zhang, Xinyao Shi, Cheng Guo, Huang Xu, Gang Chen, Lin Wang, Kai Zhang, Xiaoshuang Chen, Wei Lu   +13 more
doaj   +1 more source

A Hybrid Computational Framework for PCF‐based SPR Sensor With Machine Learning and xAI

Advanced Materials Interfaces, EarlyView.
A photonic crystal fiber‐based surface plasmon resonance (SPR) sensor integrating rectangular air holes along with conventional circular air holes achieves exceptional wavelength sensitivity of 15,000 nm/RIU across a broad refractive index range of 1.31–1.39. Integrated machine learning with explainable AI (xAI) models achieves high prediction accuracy
Mahabur Rahman Fahim, Sudeep Paul, Musrat Jahan, Md Abu Shahid Chowdhury   +3 more
wiley   +1 more source

On-chip THz studies of low-dimensional semiconductor systems [PDF]

, 2013
A wide range of novel on-chip integration techniques were developed to explore the low-temperature perturbation of GaAs/AlGaAs based confined electron systems at terahertz frequencies.
Mistry, Divyang Kishore
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Measurements of the time-jitter of coherent terahertz synchrotron radiation with a superconducting detector

, 2012
We have applied an ultrafast superconducting YBa2Cu3O7-δ (YBCO) detector to study the time jitter of the propagating electron bunches in a synchrotron. The jitter was determined from the coherent terahertz (THz) synchrotron radiation (CSR)
Hoehl, Arne, Pohl, Andreas, Ulm, Gerhard, Müller, Ralph, Feikes, Jörg, Hofherr, Matthias, Semenov, Alexej, Wüstefeld, Godehard, Hübers, Heinz-Wilhelm, Scheuring, Alexander, Probst, Petra, Ilin, Konstantin, Ries, Markus, Wünsch, Stefan   +13 more
core  

Two-dimensional materials applied for room-temperature thermoelectric photodetectors

Materials Research Express, 2020
Due to the practical demand in many fields, room-temperature photodetectors in mid/long-wavelength and terahertz ranges have attracted much attention.
Jiaqi Wang, Zhemiao Xie, John T W Yeow
doaj   +1 more source