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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 3 — Jan. 30, 2012
  • pp: 2053–2061

CMOS buried Quad p-n junction photodetector for multi-wavelength analysis

Charles Richard, Thierry Courcier, Patrick Pittet, Stéphane Martel, Luc Ouellet, Guo-Neng Lu, Vincent Aimez, and Paul G. Charette  »View Author Affiliations

Optics Express, Vol. 20, Issue 3, pp. 2053-2061 (2012)

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This paper presents a buried quad p-n junction (BQJ) photodetector fabricated with a HV (high-voltage) CMOS process. Multiple buried junction photodetectors are wavelength-sensitive devices developed for spectral analysis applications where a compact integrated solution is preferred over systems involving bulk optics or a spectrometer due to physical size limitations. The BQJ device presented here is designed for chip-based biochemical analyses using simultaneous fluorescence labeling of multiple analytes such as with advanced labs-on-chip or miniaturized photonics-based biosensors. Modeling and experimental measurements of the spectral response of the device are presented. A matrix-based method for estimating individual spectral components in a compound spectrum is described. The device and analysis method are validated via a test setup using individually modulated LEDs to simulate light from 4-component fluorescence emission.

© 2012 OSA

OCIS Codes
(040.5160) Detectors : Photodetectors
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence
(330.6180) Vision, color, and visual optics : Spectral discrimination
(110.4234) Imaging systems : Multispectral and hyperspectral imaging

ToC Category:

Original Manuscript: September 20, 2011
Revised Manuscript: December 21, 2011
Manuscript Accepted: January 4, 2012
Published: January 17, 2012

Virtual Issues
Vol. 7, Iss. 3 Virtual Journal for Biomedical Optics

Charles Richard, Thierry Courcier, Patrick Pittet, Stéphane Martel, Luc Ouellet, Guo-Neng Lu, Vincent Aimez, and Paul G. Charette, "CMOS buried Quad p-n junction photodetector for multi-wavelength analysis," Opt. Express 20, 2053-2061 (2012)

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