Title :
Multiple strip photo mixing demodulator for 3D imaging implemented on high resistivity silicon
Author :
Hossain, Quazi Delwar ; Betta, Gian-Franco Dalla ; Pancheri, Lucio ; Stoppa, David ; Dhar, Sagar K.
Author_Institution :
Dept. of EEE, Chittagong Univ. of Eng. & Technol. (CUET), Chittagong, Bangladesh
Abstract :
In this paper a multiple strip photo mixing demodulator fabricated on high resistivity silicon is described. The performance such as DC characteristics, demodulation contrast and non-linearity problem of a test sample are simulated and experimentally estimated. The experimental results exhibit a good DC charge separation and good dynamic demodulation capabilities up to 30MHz. The influence of modulation frequency and voltage on this device is also discussed. This test device corresponds to the first step towards incorporating a high resolution Time of Flight (TOF) based 3D image sensor.
Keywords :
CMOS image sensors; demodulation; electrical resistivity; optical images; 3D image sensor; 3D imaging; DC charge separation; TOF; dynamic demodulation capability; high resistivity silicon; high resolution time of flight; modulation frequency; modulation voltage; multiple strip photo mixing demodulator fabricated; nonlinearity problem; Demodulation; Electrodes; Frequency modulation; Imaging; Performance evaluation; Strips; 3D imaging; Photo mixing demodulator; Time of flight;
Conference_Titel :
Electrical & Computer Engineering (ICECE), 2012 7th International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4673-1434-3
DOI :
10.1109/ICECE.2012.6471579
