The Influence of Incident-Light Field Distribution on High-Speed Response Characteristic of UTC Photodetector

2020 ◽  
Author(s):  
Chaozheng Xiao ◽  
Yongqing Huang ◽  
Huayun Zhi ◽  
Huijuan Niu ◽  
Xiaofeng Duan ◽  
...  
Keyword(s):  
Field Distribution ◽  
High Speed ◽  
Light Field ◽  
Incident Light ◽  
Response Characteristic ◽  
Speed Response

Effect of Incident Light Field Distribution on Superresolution and DOF of Superresolution Pupil Filter

2014 ◽  
Vol 51 (11) ◽  
pp. 112301
Author(s):  
王天阳 Wang Tianyang ◽  
徐兆鹏 Xu Zhaopeng ◽  
朱化凤 Zhu Huafeng ◽  
刘佩 Liu Pei ◽  
叶春伟 Ye Chunwei ◽  
...  
Keyword(s):  
Field Distribution ◽  
Light Field ◽  
Incident Light

Constructing a light-field distribution for the laser guiding of atoms in photonic crystals

2000 ◽  
Vol 184 (5-6) ◽  
pp. 391-396 ◽  
Author(s):  
A.V. Tarasishin ◽  
S.A. Magnitskii ◽  
V.A. Shuvaev ◽  
A.M. Zheltikov
Keyword(s):  
Photonic Crystals ◽  
Field Distribution ◽  
Light Field ◽  
Laser Guiding

P-181L:Late-News Poster: A Novel Optically Compensated Tunable Birefringence (OCTB) Liquid Crystal Electro-optical Device Exhibiting High Speed Response

2014 ◽  
Vol 45 (1) ◽  
pp. 1463-1464 ◽  
Author(s):  
Shunsuke Kobayashi ◽  
Kiyofumi Takeuchi ◽  
Masakazu Kaneoya ◽  
Kunihiko Kotani ◽  
Haruyoshi Takatsu
Keyword(s):  
Liquid Crystal ◽  
High Speed ◽  
Optical Device ◽  
Speed Response

High-speed-response InGaAs/InP heterostructure avalanche photodiode with InGaAsP buffer layers

1982 ◽  
Vol 18 (22) ◽  
pp. 945 ◽  
Author(s):  
Y. Matsushima ◽  
S. Akiba ◽  
K. Sakai ◽  
Y. Kushiro ◽  
Y. Noda ◽  
...  
Keyword(s):  
High Speed ◽  
Avalanche Photodiode ◽  
Buffer Layers ◽  
Speed Response

scholarly journals Achievement Method of High-Speed Response of Error Prediction Tracking Control for Optical Disk System

2007 ◽  
Vol 127 (9) ◽  
pp. 942-949 ◽  
Author(s):  
Toru Hayano ◽  
Isao Shibutani ◽  
Kiyoshi Ohishi ◽  
Toshimasa Miyazaki ◽  
Daiichi Koide ◽  
...  
Keyword(s):  
Tracking Control ◽  
High Speed ◽  
Optical Disk ◽  
Error Prediction ◽  
Disk System ◽  
Speed Response

Correction of CCD noise in light field distribution measurement

2011 ◽  
Vol 23 (9) ◽  
pp. 2346-2350
Author(s):  
刘立力 Liu Lili ◽  
达争尚 Da Zhengshang ◽  
田新锋 Tian Xinfeng ◽  
段亚轩 Duan Yaxuan ◽  
李东坚 Li Dongjian ◽  
...  
Keyword(s):  
Field Distribution ◽  
Light Field ◽  
Distribution Measurement

scholarly journals The Fabrication and Characterization of InAlAs/InGaAs APDs Based on a Mesa-Structure with Polyimide Passivation

Sensors ◽  
2019 ◽  
Vol 19 (15) ◽  
pp. 3399 ◽  
Author(s):  
Jheng-Jie Liu ◽  
Wen-Jeng Ho ◽  
June-Yan Chen ◽  
Jian-Nan Lin ◽  
Chi-Jen Teng ◽  
...  
Keyword(s):  
Electric Fields ◽  
High Speed ◽  
Gain Bandwidth ◽  
Mesa Structure ◽  
Multiplication Gain ◽  
Data Rates ◽  
Field Control ◽  
Side Walls ◽  
Speed Response

This paper presents a novel front-illuminated InAlAs/InGaAs separate absorption, grading, field-control and multiplication (SAGFM) avalanche photodiodes (APDs) with a mesa-structure for high speed response. The electric fields in the InAlAs-multiplication layer and InGaAs-absorption layer enable high multiplication gain and high-speed response thanks to the thickness and concentration of the field-control and multiplication layers. A mesa active region of 45 micrometers was defined using a bromine-based isotropic wet etching solution. The side walls of the mesa were subjected to sulfur treatment before being coated with a thick polyimide layer to reduce current leakage, while lowering capacitance and increasing response speeds. The breakdown voltage (VBR) of the proposed SAGFM APDs was approximately 32 V. Under reverse bias of 0.9 VBR at room temperature, the proposed device achieved dark current of 31.4 nA, capacitance of 0.19 pF and multiplication gain of 9.8. The 3-dB frequency response was 8.97 GHz and the gain-bandwidth product was 88 GHz. A rise time of 42.0 ps was derived from eye-diagrams at 0.9 VBR. There was notable absence of intersymbol-interference and the signals remained error-free at data-rates of up to 12.5 Gbps.

The dual-injection Ge-on-Si photodetectors with high saturation power by optimizing light field distribution

2021 ◽  
Vol 480 ◽  
pp. 126467
Author(s):  
Jishi Cui ◽  
Tiantian Li ◽  
Fenghe Yang ◽  
Wenjing Cui ◽  
Hongmin Chen
Keyword(s):  
Field Distribution ◽  
Light Field ◽  
High Saturation ◽  
Saturation Power ◽  
Dual Injection

scholarly journals Estimating Underwater Light Regime under Spatially Heterogeneous Sea Ice in the Arctic

2018 ◽  
Vol 8 (12) ◽  
pp. 2693 ◽  
Author(s):  
Philippe Massicotte ◽  
Guislain Bécu ◽  
Simon Lambert-Girard ◽  
Edouard Leymarie ◽  
Marcel Babin
Keyword(s):  
Sea Ice ◽  
Water Column ◽  
Attenuation Coefficient ◽  
Vertical Profile ◽  
Light Field ◽  
Incident Light ◽  
Single Point ◽  
The Arctic ◽  
Large Area ◽  
Average Irradiance

The vertical diffuse attenuation coefficient for downward plane irradiance ( K d ) is an apparent optical property commonly used in primary production models to propagate incident solar radiation in the water column. In open water, estimating K d is relatively straightforward when a vertical profile of measurements of downward irradiance, E d , is available. In the Arctic, the ice pack is characterized by a complex mosaic composed of sea ice with snow, ridges, melt ponds, and leads. Due to the resulting spatially heterogeneous light field in the top meters of the water column, it is difficult to measure at single-point locations meaningful K d values that allow predicting average irradiance at any depth. The main objective of this work is to propose a new method to estimate average irradiance over large spatially heterogeneous area as it would be seen by drifting phytoplankton. Using both in situ data and 3D Monte Carlo numerical simulations of radiative transfer, we show that (1) the large-area average vertical profile of downward irradiance, E d ¯ ( z ) , under heterogeneous sea ice cover can be represented by a single-term exponential function and (2) the vertical attenuation coefficient for upward radiance ( K L u ), which is up to two times less influenced by a heterogeneous incident light field than K d in the vicinity of a melt pond, can be used as a proxy to estimate E d ¯ ( z ) in the water column.

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