Resolution improvement for HgCdTe IRCCD

Details Resolution improvement for HgCdTe IRCCD Resolution improvement for HgCdTe IRCCD

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1685..213a&link_type=abstract

Proc. SPIE Vol. 1685, p. 213-220, Infrared Detectors and Focal Plane Arrays II, Eustace L. Dereniak; Robert E. Sampson; Eds.

Computer Science

1

Scientific paper

This paper describes a resolution improvement for a mercury cadmium telluride (MCT) infrared charge-coupled device (IRCCD) using a new microscanner. To keep the microscanner compact, the scanner prism is placed between the lens and the IRCCD, and driven by a bimorph piezoelectric actuator. By compensating the drive pulse and optimizing the prism thickness, the microscanner gives a fast and stable response with low distortion. The medium wavelength imager developed for the microscanner gives a 128 X 128 pixel thermal image in the 3 to 5 micrometers band using a 64 X 64 element IRCCD. The Nyquist frequency was increased from 10 to 20 cycles/mm to reduce aliasing without decreasing the S/N ratio. The noise equivalent temperature difference (NETD) was measured at 0.06 K with an f-1.7 lens. The modulation transfer function (MTF) was estimated by considering the scan distortion and the pixel aperture profile. By optimizing the aperture profile of the photodiode, the MTF at the Nyquist frequency was increased from 0 to 20%.

Affiliated with

Also associated with

No associations

Rating

Resolution improvement for HgCdTe IRCCD 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 Resolution improvement for HgCdTe IRCCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resolution improvement for HgCdTe IRCCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1093121