Camera pixel for coherent detection of modulated light

P. R. Dmochowski; B. R. Hayes-Gill; M. Clark; J. A. Crowe; Michael Geoffrey Somekh; S. P. Morgan

doi:10.1049/el:20046534

Camera pixel for coherent detection of modulated light

P. R. Dmochowski, B. R. Hayes-Gill, M. Clark, J. A. Crowe, Michael Geoffrey Somekh, S. P. Morgan

Research output: Journal article publication › Journal article › Academic research › peer-review

18 Citations (Scopus)

Abstract

A CMOS pixel with local processing suitable for use in a modulated light camera is described. The pixel was designed to detect sinusoidally modulated light within the frequency range of 500 kHz-25 MHz. It consists of a photodiode, a transimpedance amplifier, a mixer and an active 150 Hz bandpass filter. It is a prototype design capable of further size reduction suitable for tiling into an array for imaging purposes. This allows the modulated light component of a frequency far in excess of the frame rate to be detected at the pixel level.

Original language	English
Pages (from-to)	1403-1404
Number of pages	2
Journal	Electronics Letters
Volume	40
Issue number	22
DOIs	https://doi.org/10.1049/el:20046534
Publication status	Published - 28 Oct 2004
Externally published	Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1049/el:20046534

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AU - Dmochowski, P. R.

AU - Hayes-Gill, B. R.

AU - Clark, M.

AU - Crowe, J. A.

AU - Somekh, Michael Geoffrey

AU - Morgan, S. P.

PY - 2004/10/28

Y1 - 2004/10/28

N2 - A CMOS pixel with local processing suitable for use in a modulated light camera is described. The pixel was designed to detect sinusoidally modulated light within the frequency range of 500 kHz-25 MHz. It consists of a photodiode, a transimpedance amplifier, a mixer and an active 150 Hz bandpass filter. It is a prototype design capable of further size reduction suitable for tiling into an array for imaging purposes. This allows the modulated light component of a frequency far in excess of the frame rate to be detected at the pixel level.

AB - A CMOS pixel with local processing suitable for use in a modulated light camera is described. The pixel was designed to detect sinusoidally modulated light within the frequency range of 500 kHz-25 MHz. It consists of a photodiode, a transimpedance amplifier, a mixer and an active 150 Hz bandpass filter. It is a prototype design capable of further size reduction suitable for tiling into an array for imaging purposes. This allows the modulated light component of a frequency far in excess of the frame rate to be detected at the pixel level.

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U2 - 10.1049/el:20046534

DO - 10.1049/el:20046534

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Camera pixel for coherent detection of modulated light

Abstract

ASJC Scopus subject areas

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