2048x2048 HgCdTe focal plane arrays for astronomy applications

Details 2048x2048 HgCdTe focal plane arrays for astronomy applications 2048x2048 HgCdTe focal plane arrays for astronomy applications

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3698...24v&link_type=abstract

Proc. SPIE Vol. 3698, p. 24-35, Infrared Technology and Applications XXV, Bjorn F. Andresen; Marija Strojnik Scholl; Eds.

Statistics

Applications

5

Scientific paper

Rockwell is developing the world's largest HgCdTe IR focal plane array (FPA) for astronomy and low background applications. The format of the device is a hybrid 2048 X 2048 with a unit cell size of 18 micrometers X 18 micrometers . SWIR detectors with a spectral response of 0.85 micrometers to 2.5 micrometers have been processed on liquid phase epitaxy (LPE) HgCdTe on sapphire substrates. The MWIR detectors with a spectral response of 0.4 micrometers to 5 micrometers will be processed on molecular beam epitaxy HgCdTe on CdZnTe substrates. The multiplexer has been designed and fabricated at Conexant. Room temperature probing shows that the device is functional with excellent yield. Novel hybrid fabrication techniques will be used to demonstrate the FPA. This HAWAII-2 device is based on the highly successful HAWAII 1024 X 1024 device and the performance will be similar. The ultimate performance expected from the array is: dark currents of < 0.01 3-/s, quantum efficiency of > 75 percent across the spectral band, and noise levels of < 3 e- for the SWIR and < 10 e- for the MWIR band using Fowler sampling. We expected to achieve these performance levels at 77K for the SWIR and > 40K for the MWIR band. The status of the 2048 X 2048 detector arrays and FPAs are discussed.

Affiliated with

Also associated with

No associations

Rating

2048x2048 HgCdTe focal plane arrays for astronomy applications 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 2048x2048 HgCdTe focal plane arrays for astronomy applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 2048x2048 HgCdTe focal plane arrays for astronomy applications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1577617