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Optics Letters

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  • Vol. 14, Iss. 17 — Sep. 1, 1989
  • pp: 931–933

Annular-slot arrays as far-infrared bandpass filters

Peter A. Krug, David H. Dawes, Ross C. McPhedran, W. Wright, John C. Macfarlane, and Lewis B. Whitbourn  »View Author Affiliations


Optics Letters, Vol. 14, Issue 17, pp. 931-933 (1989)
http://dx.doi.org/10.1364/OL.14.000931


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Abstract

Arrays of both annular and square annular slots in a conducting sheet on a dielectric substrate have been fabricated photolithographically. The structures are shown to behave as bandpass filters in the far infrared, with a resonant wavelength slightly larger than the average circumference or perimeter of the slot. The measured far-infrared transmittance of the annular array is approximately 76% of that predicted by theory, while its resonant frequency agrees with theory to within 5%.

© 1989 Optical Society of America

History
Original Manuscript: April 18, 1989
Manuscript Accepted: June 11, 1989
Published: September 1, 1989

Citation
Peter A. Krug, W. Wright, Lewis B. Whitbourn, John C. Macfarlane, David H. Dawes, and Ross C. McPhedran, "Annular-slot arrays as far-infrared bandpass filters," Opt. Lett. 14, 931-933 (1989)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-14-17-931


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References

  1. E. A. Parker, S. M. A. Hamdy, Electron. Lett. 17, 613 (1981).
  2. K. J. Kogler, R. G. Pastor, Appl. Opt. 27, 18 (1988). [CrossRef] [PubMed]
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  5. A. Roberts, R. C. McPhedran, IEEE Trans. Antennas Propag. AP-36, 607 (1988). [CrossRef]
  6. The quartz disks with custom FIR antireflection coatings were supplied by Francis Lord Manufacturing (33 Higginbotham Road, Gladesville, N.S.W. 2111, Australia).

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