Performance of HAWAII-2 FPAs for multi-object infrared camera and spectrograph

Yuka Katsuno, Takashi Ichikawa, Ken'ichiro Asai, Ryuji Suzuki, Chihiro Tokoku, Tetsuo Nishimura

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


We report on the results of the performance tests of the HAWAII-2 FPAs for Multi-Object Infra-Red Camera and Spectrograph (MOIRCS). MOIRCS provides wide-field imaging mode (4' × 7' F.O.V.) and multi-object spectroscopy mode for the wavelength range from 0.85 to 2.5 μm. To achieve the wide field-of-view with the high angular resolution, we use two 2048 × 2048 HgCdTe FPAs, HAWAII-2. We have made performance tests of both the engineering-grade and the science-grade HAWAII-2 arrays. Array performances such as stability of bias frames, read noise and dark current are evaluated at the operating temperature of 78K. In addition, we search for the optimum well depth, readout speed by changing bias voltages. We have finished tests of the engineering-grade array and the performance of our science-grade arrays is under investigation.

Original languageEnglish
Pages (from-to)271-279
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue number1
Publication statusPublished - 2002 Dec 1
EventInstrument Design and Pefrormance for Optical/Infrared Ground-based Telescopes - Waikoloa, HI, United States
Duration: 2002 Aug 252002 Aug 28


  • Data acquisition system
  • HAWAII-2
  • Infrared FPA
  • Multi-object spectrograph
  • Near-infrared
  • Wide-field camera

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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