Quad-phase synchronous light detection with 64×64 CMOS modulated light camera

N. S. Johnston, C. Stewart, R. A. Light, B. R. Hayes-Gill, Michael Geoffrey Somekh, S. P. Morgan, J. R. Sambles, M. C. Pitter

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)


A scalable 64×64 array of feedback buffered photodiodes with column level demodulation circuitry has been fabricated in a 0.35m CMOS process. The camera provides two-dimensional phase-sensitive imaging on a line-scan basis using 64 independent quad-phase demodulation channels. Using four phases suppresses even harmonics, enabling the array to be used for heterodyne demodulation.
Original languageEnglish
Pages (from-to)1090-1092
Number of pages3
JournalElectronics Letters
Issue number21
Publication statusPublished - 19 Oct 2009
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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