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

fYear

2012

fDate

20-22 Dec. 2012

Firstpage

430

Lastpage

433

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Computer Engineering (ICECE), 2012 7th International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4673-1434-3

Type

conf

DOI

10.1109/ICECE.2012.6471579

Filename

6471579