Development of a multi-Fourier-transform interferometer: Imaging experiments in millimeter and submillimeter wave bands

Izumi S. Ohta, Makoto Hattori, Hiroshi Matsuo

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

We have developed a millimeter and submillimeter Michelson-type bolometric interferometer based on a Martin-Puplett-type Fourier-transform spectrometer named multi-Fourier-transform interferometer (MuFT). We have succeeded in proving that the MuFT is capable of performing broadband imaging observations as theoretically proposed by our previous paper (OHM) [Appl. Opt. 45, 2576 (2006)]. We succeeded in acquiring the mutual coherence signal for an extended source in broadband. By analyzing the obtained mutual coherence signal following the formula proposed in OHM, 2D source images for each wavenumber from 5 cm-1 (150 GHz) to 35 cm-1 (1.05 THz) with a wavenumber interval of 0.4 cm-1 (12 GHz) were successfully extracted. The large dynamic range advantage of the MuFT proposed in OHM was confirmed experimentally.

Original languageEnglish
Pages (from-to)2881-2892
Number of pages12
JournalApplied optics
Volume46
Issue number15
DOIs
Publication statusPublished - 2007 May 20

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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