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Applied Optics

Applied Optics


  • Vol. 40, Iss. 4 — Feb. 1, 2001
  • pp: 514–526

Sensitivity of an imaging space infrared interferometer

Tadashi Nakajima and Hideo Matsuhara  »View Author Affiliations

Applied Optics, Vol. 40, Issue 4, pp. 514-526 (2001)

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We study the sensitivities of space infrared interferometers. We formulate the signal-to-noise ratios of infrared images obtained by aperture synthesis in the presence of source shot noise, background shot noise, and detector read noise. We consider the case in which n beams are combined pairwise at n(n - 1)/2 detectors and the case in which all the n beams are combined at a single detector. We apply the results to future missions, Terrestrial Planet Finder and Darwin. We also discuss the potential of a far-infrared interferometer for a deep galaxy survey.

© 2001 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(110.4280) Imaging systems : Noise in imaging systems
(120.3180) Instrumentation, measurement, and metrology : Interferometry

Original Manuscript: August 7, 2000
Revised Manuscript: November 9, 2000
Published: February 1, 2001

Tadashi Nakajima and Hideo Matsuhara, "Sensitivity of an imaging space infrared interferometer," Appl. Opt. 40, 514-526 (2001)

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