Review of the state of infrared detectors for astronomy in retrospect of the June 2002 workshop on scientific detectors for astronomy

Details Review of the state of infrared detectors for astronomy in retrospect of the June 2002 workshop on scientific detectors for astronomy Review of the state of infrared detectors for astronomy in retrospect of the June 2002 workshop on scientific detectors for astronomy

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4841..839f&link_type=abstract

Instrument Design and Performance for Optical/Infrared Ground-based Telescopes. Edited by Iye, Masanori; Moorwood, Alan F. M.

Computer Science

Performance

1

Scientific paper

Only two months ago, in June 2002, a workshop on scientific detectors for astronomy was held in Waimea, where for the first time both experts on optical CCD's and infrared detectors working at the cutting edge of focal plane technology gathered. An overview of new developments in optical detectors such as CCD's and CMOS devices will be given elsewhere in these proceedings. This paper will focus on infrared detector developments carried out at the European Southern Observatory ESO and will also include selected highlights of infrared focal plane technology as presented at the Waimea workshop. Three main detector developments for ground based astronomers are currently pushing infrared focal plane technology. In the near infrared from 1 to 5 μm two technologies, both aiming for buttable 2K x 2K mosaics, will be reviewed, namely InSb and HgCdTe grown by LPE or MBE on Al2O3, Si or CdZnTe substrates. Blocked impurity band Si:As arrays cover the mid infrared spectral range from 8 to 28 μm. Since the video signal of infrared arrays, contrary to CCD's, is DC coupled, long exposures with IR arrays are extremely susceptible to drifts and low frequency noise pick-up down to the mHz regime. New techniques to reduce thermal drifts and suppress low frequency nosie with on-chip reference pixels will be discussed. The need for the development of small format low noise sensors for adaptive optics and interferometry will be pointed out.

Affiliated with

Also associated with

No associations

Rating

Review of the state of infrared detectors for astronomy in retrospect of the June 2002 workshop on scientific detectors for astronomy 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 Review of the state of infrared detectors for astronomy in retrospect of the June 2002 workshop on scientific detectors for astronomy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Review of the state of infrared detectors for astronomy in retrospect of the June 2002 workshop on scientific detectors for astronomy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1169255