Results 81 to 90 of about 22,526 (196)

Characterization of the Hamamatsu S8664 Avalanche Photodiode for X-Ray and VUV-light detection

open access: yes, 2011
We present the first operation of the Avalanche Photodiode (APD) from Hamamatsu to xenon scintillation light and to direct X-rays of 22.1 keV and 5.9 keV. A large non-linear response was observed for the direct X-ray detection.
Aprile   +31 more
core   +1 more source

Enhanced Spectral Amplitude Coding OCDMA System Utilizing a Single Photodiode Detection

open access: yesApplied Sciences, 2018
In this paper, the performance of a spectral amplitude coding-optical code division multiple access (SAC-OCDMA) system is investigated utilizing a single photodiode (SPD) detection technique. The proposed system uses enhanced double weight (EDW) codes as
Somia A. Abd El-Mottaleb   +4 more
doaj   +1 more source

An acoustic charge transport imager for high definition television applications [PDF]

open access: yes
In this report we present the progress during the second six month period of the project. This includes both experimental and theoretical work on the acoustic charge transport (ACT) portion of the chip, the theoretical program modelling of both the ...
Brennan, Kevin F.   +2 more
core   +1 more source

Direct Measurement of Fast Transients by Using Boot-strapped Waveform Averaging

open access: yes, 2017
An approximation to coherent sampling, also known as boot-strapped waveform averaging, is presented. The method uses digital cavities to determine the condition for coherent sampling. It can be used to increase the effective sampling rate of a repetitive
Edman, Fredrik   +2 more
core   +1 more source

Impact-ionization and noise characteristics of thin III-V avalanche photodiodes [PDF]

open access: yes, 2001
It is, by now, well known that McIntyre\u27s localized carrier-multiplication theory cannot explain the suppression of excess noise factor observed in avalanche photodiodes (APDs) that make use of thin multiplication regions.
Campbell, Joe C.   +6 more
core   +1 more source

Avalanche amplification of a single exciton in a semiconductor nanowire

open access: yes, 2012
Interfacing single photons and electrons is a crucial ingredient for sharing quantum information between remote solid-state qubits. Semiconductor nanowires offer the unique possibility to combine optical quantum dots with avalanche photodiodes, thus ...
A Zrenner   +35 more
core   +2 more sources

Unified Pulsed Laser Range Finder and Velocimeter using Ultra-Fast Time-To-Digital Converter

open access: yesIranian Journal of Electrical and Electronic Engineering, 2009
In this paper, we present a high accuracy laser range finder and velocimeter using ultra-fast time-to-digital converter (TDC). The system operation is based on the measuring the round-trip time of a narrow laser pulse.
Shahram Mohammad Nejad, Saeed Olyaee
doaj  

Analysis of noise and its characteristics in avalanche photodiode

open access: yesAIP Advances
Avalanche photodiodes (APDs) produce noise during operation, which affects the device performance. However, the previous research on its noise is mainly theoretical analysis and is only reflected as optical noise.
XiaoFei Jia   +3 more
doaj   +1 more source

A Compact Single-Pixel Spectral Measurement System

open access: yesIEEE Photonics Journal
A compact single-pixel spectral measurement system based on semiconductor diodes is described in this work. There are no optical components in the system configuration, which contribute to reducing the size of the equipment.
Peiqi Yang   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy