By Topic

Color filters integrated with the detector in silicon

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
R. F. Wolffenbuttel ; Delft University of Technology, Delft, The Netherlands

The usual single-chip color imager consists of an alternating pattern of three types of color filters deposited on top of a regular array of photodetectors. The novel principle to be presented is comprised of a method for integrating the filtering element with the photodetector in silicon, which reveals an intrinsic color filtering capability based on the strong wavelength dependence of the absorption coefficient. The band-pass central wavelength of the optical filter is electronically tunable using the reverse voltage applied across the diode, so that only one diode is required for each color element.

Published in:

IEEE Electron Device Letters  (Volume:8 ,  Issue: 1 )