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Applied Optics

Applied Optics


  • Vol. 51, Iss. 12 — Apr. 20, 2012
  • pp: 2202–2211

Demonstration of spectral and spatial interferometry at THz frequencies

William F. Grainger, Roser Juanola-Parramon, Peter A. R. Ade, Matt Griffin, Flo Liggins, Enzo Pascale, Giorgio Savini, and Bruce Swinyard  »View Author Affiliations

Applied Optics, Vol. 51, Issue 12, pp. 2202-2211 (2012)

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A laboratory prototype spectral-spatial interferometer has been constructed to demonstrate the feasibility of the double-Fourier technique at far infrared (FIR) wavelengths (0.15–1 THz). It is planned to use this demonstrator to investigate and validate important design features and data-processing methods for future astronomical FIR interferometer instruments. In building this prototype, we have had to address several key technologies to provide an end–end system demonstration of this double-Fourier interferometer. We report on the first results taken when viewing single-slit and double-slit sources at the focus of a large collimator used to simulate real sources at infinity. The performance of the prototype instrument for these specific field geometries is analyzed to compare with the observed interferometric fringes and to demonstrate image reconstruction capabilities.

© 2012 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(110.3175) Imaging systems : Interferometric imaging

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: December 22, 2011
Revised Manuscript: March 7, 2012
Manuscript Accepted: March 9, 2012
Published: April 20, 2012

William F. Grainger, Roser Juanola-Parramon, Peter A. R. Ade, Matt Griffin, Flo Liggins, Enzo Pascale, Giorgio Savini, and Bruce Swinyard, "Demonstration of spectral and spatial interferometry at THz frequencies," Appl. Opt. 51, 2202-2211 (2012)

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  1. M. Harwit, D. Leisawitz, and S. Rinehart, “A far-infrared/submillimeter kilometer-baseline interferometer in space,” New Astron. Rev. 50, 228–234 (2006). [CrossRef]
  2. F. P. Helmich and R. J. Ivison, “FIRI—A far-infrared interferometer,” Experimental Astronomy 23, 245–276(2009). [CrossRef]
  3. I. S. Ohta, M. Hattori, and H. Matsuo, “Development of a multi-Fourier-transform interferometer: fundamentals,” Appl. Opt. 45, 2576–2585 (2006). [CrossRef]
  4. J. M. Mariotti and S. T. Ridgway, “Double Fourier spatio-spectral interferometry—combining high spectral and high spatial resolution in the near infrared,” Astron. Astrophys. 195, 350–363 (1988).
  5. D. Leisawitz, C. Baker, A. Barger, D. Benford, A. Blain, R. Boyle, R. Broderick, J. Budinoff, J. Carpenter, R. Caverly, P. Chen, S. Cooley, C. Cottinghain, J. Crooke, D. DiPietro, M. DiPirro, M. Femiano, A. Ferrer, J. Fischer, J. P. Gardner, L. Hallock, K. Harris, K. Hartman, M. Harwit, L. Hillenbrand, T. Hyde, D. Jones, J. Kellogg, A. Kogut, M. Kuchner, B. Lawson, J. Lecha, M. Lecha, A. Mainzer, J. Mannion, A. Martino, P. Mason, J. Mather, G. McDonald, R. Mills, L. Mundy, S. Ollendorf, J. Pellicciotti, D. Quinn, K. Rhee, S. Rinehart, T. Sauerwine, R. Silverberg, T. Smith, G. Stacey, H. P. Stahl, J. Staguhn, S. Tompkins, J. Tveekrem, S. Wall, and M. Wilson, “The space infrared interferometric telescope (SPIRIT): High-resolution imaging and spectroscopy in the far-infrared,” Adv. Space Res. 40, 689–703 (2007). [CrossRef]
  6. H. Shibai, M. Fukagawa, E. Kato, T. Kanoh, T. Kohyama, Y. Itoh, K. Yamamoto, M. Kawada, T. Watabe, A. Nakashima, M. Tanabe, R. Kanoh, M. Narita, D. M. Gelino, and I. Ribas, “Far-infrared interferometric experiment (FITE): toward the first flight,” in Pathways Towards Habitable Planets, V. Coudé Du Foresto, ed. (Astronomical Society of the Pacific, 2010), p. 541.
  7. S. Rinehart, “The balloon experimental twin telescope for infrared interferometry (BETTII),” in Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (SPIE, 2010), p. 16.
  8. M. Born and E. Wolf, Principles of Optics (Pergamon, 1959).
  9. E. Hecht, Optics4th ed. (Addison-Welsey, 2001).
  10. R. J. Bell, Introductory Fourier Transform Spectroscopy (Academic, 1972).
  11. Electro-Optical Products Corp., Ridgewood, New York 11385, http://www.eopc.com .
  12. E. Pascale, P. A. R. Ade, J. J. Bock, E. L. Chapin, J. Chung, M. J. Devlin, S. Dicker, M. Griffin, J. O. Gundersen, M. Halpern, P. C. Hargrave, D. H. Hughes, J. Klein, C. J. MacTavish, G. Marsden, P. G. Martin, T. G. Martin, P. Mauskopf, C. B. Netterfield, L. Olmi, G. Patanchon, M. Rex, D. Scott, C. Semisch, N. Thomas, M. D. P. Truch, C. Tucker, G. S. Tucker, M. P. Viero, and D. V. Wiebe, “The Balloon-borne Large Aperture Submillimeter Telescope: BLAST,” Astrophys. J. 681, 400–414 (2008). [CrossRef]
  13. P. A. R. Ade, P. A. Hamilton, and D. A. Naylor, “An absolute dual beam emission spectrometer,” in Fourier Transform Spectroscopy: New Methods and Applications (OSA, 1999), p. 90.
  14. M. L. Forman, W. H. Steel, and G. A. Vanasse, “Correction of asymmetric interferograms obtained in Fourier spectroscopy,” J. Opt. Soc. Am. 56, 59–61 (1966). [CrossRef]
  15. D. A. Harper, R. H. Hildebrand, R. Stiening, and R. Winston, “Heat trap—optimized far infrared field optics system,” Appl. Optics 15, 53–60 (1976). [CrossRef]
  16. Emerson & Cuming Microwave Products, Inc., Randolph, MA, 02368, http://www.eccosorb.com .
  17. R. A. Perley, F. R. Schwab, and A. H. Bridle, Synthesis Imaging in Radio Astronomy,” Vol. 6 of the ASP Conference Series(Astronomical Society of the Pacific, 1989).

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