Conversion gain non-linearity and its correction in hybridised near infrared detectors

Details Conversion gain non-linearity and its correction in hybridised near infrared detectors Conversion gain non-linearity and its correction in hybridised near infrared detectors

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6690e...3b&link_type=abstract

Focal Plane Arrays for Space Telescopes III. Edited by Grycewicz, Thomas J.; Marshall, Cheryl J.; Warren, Penny G.. Proceeding

Computer Science

Performance

Scientific paper

The conversion gain in hybridised near infrared detectors with Source Follower per Detector unit cells changes non-linearly as the signal integrates on the junction capacitance of the detector diodes[1,2]. However, the non-linearity in the measured conversion gain as calculated from the conventional photon transfer technique (~15% in VIRGO-2K for example) is higher than the non-linearity noticed at the detector output (~4% in the same detectors). This paper presents experimental data from the VIRGO-2K, Aladdin-III and Hawaii-1RG detectors which is used to highlight this discrepancy and thus show the shortcomings of the use of the photon transfer technique with such non-linear detectors. The mechanism for the changing detector node capacitance with integrating signal is explained. A method for correcting the measured conversion gain to account for this non-linearity has been implemented on the data from the same detectors and will be presented. If not corrected, this non-linearity can be another source of error that could cause an over-estimation of the detector performance parameters (as is the case with the inter-pixel capacitance).

Affiliated with

Also associated with

No associations

Rating

Conversion gain non-linearity and its correction in hybridised near infrared detectors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Conversion gain non-linearity and its correction in hybridised near infrared detectors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conversion gain non-linearity and its correction in hybridised near infrared detectors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1295027