Ultra-Broadband, High Speed, and High-Quantum-Efficiency Photodetectors Based on Black Phosphorus

2019 ◽  
Vol 12 (1) ◽  
pp. 1201-1209 ◽  
Author(s):  
Tian-Yun Chang ◽  
Po-Liang Chen ◽  
Jhih-Heng Yan ◽  
Wei-Qing Li ◽  
Ya-Yun Zhang ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Speed ◽  
Black Phosphorus ◽  
High Quantum Efficiency ◽  
High Quantum

scholarly journals Highly Efficient Near-Infrared Detector Based on Optically Resonant Dielectric Nanodisks

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 428
Author(s):  
Reza Masoudian Saadabad ◽  
Christian Pauly ◽  
Norbert Herschbach ◽  
Dragomir N. Neshev ◽  
Haroldo T. Hattori ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Speed ◽  
Near Infrared ◽  
Infrared Detector ◽  
High Quantum Efficiency ◽  
Fast Detection ◽  
High Quantum ◽  
Resonant Modes ◽  
Infrared Wavelengths ◽  
Dielectric Metasurface

Fast detection of near-infrared (NIR) photons with high responsivity remains a challenge for photodetectors. Germanium (Ge) photodetectors are widely used for near-infrared wavelengths but suffer from a trade-off between the speed of photodetection and quantum efficiency (or responsivity). To realize a high-speed detector with high quantum efficiency, a small-sized photodetector efficiently absorbing light is required. In this paper, we suggest a realization of a dielectric metasurface made of an array of subwavelength germanium PIN photodetectors. Due to the subwavelength size of each pixel, a high-speed photodetector with a bandwidth of 65 GHz has been achieved. At the same time, high quantum efficiency for near-infrared illumination can be obtained by the engineering of optical resonant modes to localize optical energy inside the intrinsic Ge disks. Furthermore, small junction capacitance and the possibility of zero/low bias operation have been shown. Our results show that all-dielectric metasurfaces can improve the performance of photodetectors.

Photon number resolving detection with high speed and high quantum efficiency

Metrologia ◽  
2009 ◽  
Vol 46 (4) ◽  
pp. S288-S292 ◽  
Author(s):  
D Fukuda ◽  
G Fujii ◽  
T Numata ◽  
A Yoshizawa ◽  
H Tsuchida ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Speed ◽  
Photon Number ◽  
High Quantum Efficiency ◽  
High Quantum

Design Considerations for 1.3 $\mu$m GaNAsSb–GaAs High Speed and High Quantum Efficiency Waveguide Photodetectors

2009 ◽  
Vol 27 (13) ◽  
pp. 2518-2524 ◽  
Author(s):  
Z. Xu ◽  
S. F. Yoon ◽  
W. K. Loke ◽  
C. Y. Ngo ◽  
K. H. Tan ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Speed ◽  
High Quantum Efficiency ◽  
Design Considerations ◽  
High Quantum

Modulation of optical properties of ZnS QDs embedded glasses through aluminum and manganese doping

2021 ◽  
Author(s):  
Kai Li ◽  
Ying Ye ◽  
Wenchao Zhang ◽  
Yuzhou Hu ◽  
Ying Yang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Quantum Efficiency ◽  
High Quantum Efficiency ◽  
Information Display ◽  
Manganese Doping ◽  
High Quantum

Nontoxic cadmium-free ZnS and ZnSe QDs QDs with high quantum efficiency have drawn considerable attention for information display. Applications of ZnS and ZnSe QDs are limited by their short emission...

A novel high quantum efficiency SiGe Phototransistor detector

2021 ◽  
Author(s):  
Yang Xiang ◽  
Hongyun Xie ◽  
Yin Sha ◽  
Ruilang Ji ◽  
Fu Zhu ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Quantum Efficiency ◽  
High Quantum
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