Results 11 to 20 of about 582 (118)

High detectivity terahertz radiation sensing using frequency-noise-optimized nanomechanical resonators

APL Photonics
We achieve high detectivity terahertz radiation sensing using a silicon nitride nanomechanical resonator functionalized with a metasurface absorber. High performances are achieved by striking a balance between the frequency stability of the resonator and
Chang Zhang, Eeswar K. Yalavarthi, Mathieu Giroux, Wei Cui, Michel Stephan, Ali Maleki, Arnaud Weck, Jean-Michel Ménard, Raphael St-Gelais   +8 more
doaj   +2 more sources

Frequency division multiplexing readout of 60 low-noise transition-edge sensor bolometers [PDF]

, 2021
We demonstrate multiplexing readout of 60 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing readout chain with bias frequencies ranging from 1 to 3.5 MHz and with a typical frequency spacing of 32 kHz. The
Aminaei, A. (author), de Lange, G. (author), Van Der Linden, A. J. (author), Audley, M. D. (author), Ridder, M.L. (author), Gao, J.R. (author), Wang, Q. (author), Bruijn, M. P. (author), Khosropanah, P. (author), Van Der Kuur, J. (author)   +9 more
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Optimization of Pixel Size and Electrode Structure for Ge:Ga Terahertz Photoconductive Detectors

Sensors, 2022
To investigate the effects of the pixel sizes and the electrode structures on the performance of Ge-based terahertz (THz) photoconductive detectors, vertical structure Ge:Ga detectors with different structure parameters were fabricated.
Yifei Wu, Zuoru Dong, Yulu Chen, Bingbing Wang, Liming Wang, Xiaowan Dai, Junming Zhang, Xiaodong Wang   +7 more
doaj   +1 more source

High sensitivity of room-temperature terahertz photodetector based on silicon

iScience, 2022
Summary: Silicon (Si) is the most important semiconductor material broadly used in both electronics and optoelectronics. However, the performance of Si-based room temperature detectors is far below the requirements for direct detection in the terahertz ...
Qinxi Qiu, Wanli Ma, Jingbo Li, Lin Jiang, Wangchen Mao, Xuehui Lu, Niangjuan Yao, Yi Shi, Zhiming Huang   +8 more
doaj   +1 more source

Photon noise from chaotic and coherent millimeter-wave sources measured with horn-coupled, aluminum lumped-element kinetic inductance detectors [PDF]

, 2016
We report photon-noise limited performance of horn-coupled, aluminum lumped-element kinetic inductance detectors at millimeter wavelengths. The detectors are illuminated by a millimeter-wave source that uses an active multiplier chain to produce ...
K. Bradford, Abitbol, M. H., Mroczkowski, T., Limon, M., Doyle, S., Jones, G., Cantor, R., H. McCarrick, G. Jones, D. Araujo, Ade, Peter, Flanigan, D., B. R. Johnson, H. Leduc, Araujo, D., Leduc, H., Miller, A., Tucker, C., McCarrick, H., G. Che, Bradford, K., Johnson, B. R., Mauskopf, P., P. Ade, Day, P. K., Tucker, Carole, P. Day, A. Miller, R. Cantor, M. Limon, Day, P., Che, G., C. B. Kjellstrand, Ade, P., Zmuidzinas, J., M. H. Abitbol, J. Zmuidzinas, D. Flanigan, Doyle, Simon, S. Doyle, P. Mauskopf, Kjellstrand, C. B., C. Tucker, Mauskopf, Philip, V. Luu, Luu, V., T. Mroczkowski   +46 more
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A High-Performance Thin-Film Sensor in 6G for Remote Sensing of the Sea Surface

Remote Sensing, 2023
Functional devices in the THz band will provide a highly important technical guarantee for the promotion and application of 6G technology. We sought to design a high-performance sensor with a large area, high responsiveness, and low equivalent noise ...
Qi Song, Xiaoguang Xu, Jianchen Zi, Jiatong Wang, Zhongze Peng, Bingyuan Zhang, Min Zhang   +6 more
doaj   +1 more source

Pseudo-planar Ge-on-Si Single-photon Avalanche Diode Detector with Record Low Noise-equivalent Power [PDF]

, 2021
Single-photon avalanche diode (SPAD) detectors are of significant interest for numerous applications, including light detection and ranging (LIDAR), and quantum technologies such as quantum-key distribution and quantum information processing.
Benakaprasad, Bhavana, Kirdoda, Jarosław, Yi, Xin; id_orcid, Yi, Xin, Thorburn, Fiona, Watson, Scott, Kirdoda, Jaroslaw, Huddleston, Laura, Paul, Douglas J., Coughlan, Conor, Greener, Zoë M., Buller, Gerald S., Millar, Ross W.   +12 more
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Thin-film heat-sensitive elements on the basis of semimetals for electromagnetic radiation receivers

Российский технологический журнал, 2020
The paper presents the generalized results of the authors’ work on the study of thin films of semimetals, which can be used in the development of universal electromagnetic radiation receivers. It is shown that thin-film materials based on semimetals have
Mikhail A. Kik, Ilya A. Golokolenov, Aleksandr S. Sigov, Anatoly A. Shilyaev, Vitaly V. Zavyalov, Sergey S. Verbitsky, Aleksey N. Tselebrovsky   +6 more
doaj   +1 more source

A terahertz near-field nanoscopy revealing edge fringes with a fast and highly sensitive quantum-well photodetector

iScience, 2022
Summary: We demonstrate the successful implementation of a terahertz (THz) quantum-well photodetector (QWP) for effective signal collection in a scattering-type scanning near-field optical microscope (s-SNOM) system.
Fucheng Qiu, Guanjun You, Zhiyong Tan, Wenjian Wan, Chang Wang, Xiao Liu, Xinzhong Chen, Rui Liu, Hu Tao, Zhanglong Fu, Hua Li, Juncheng Cao   +11 more
doaj   +1 more source

NEP in AlGaN/GaN based nanodiodes

, 2023
International audienceThe Noise Equivalent Power (NEP) of diodes consisting in arrays of nanochannels in parallel is extracted by means of the measurement of the voltage responsivity, βV (V/W), and current responsivity, βI (A/W), up to 110 GHz.
Íñiguez-De-La-Torre, Ignacio, Pérez-Martín, Elsa, Sánchez-Martín, Hector, Artillan, Philippe, Paz-Martínez, Gaudencio, González, Tomás, Mateos, Javier, Rochefeuille, Edouard   +7 more
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