OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 28, Iss. 20 — Oct. 15, 1989
  • pp: 4478–4481

Submillimeter wave low pass filters made of glass beads

Shinji Sato, Satio Hayakawa, Toshio Matsumoto, Hiroshi Matsuo, Hiroshi Murakami, Kiyomi Sakai, Andrew E. Lange, and Paul L. Richards  »View Author Affiliations

Applied Optics, Vol. 28, Issue 20, pp. 4478-4481 (1989)

View Full Text Article

Enhanced HTML    Acrobat PDF (434 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We have fabricated low pass filters made of spherical glass beads embedded in polyethylene and measured the transmittance at room temperature and 1.3 K as a function of the diameter and the filling factor of the glass beads. The cutoff frequency is a function of the bead diameter. Compared with the transmittance of thin glass plates or Fluorogold filters, these filters have a sharper cutoff due to the effect of scattering by the spherical beads. This effect becomes prominent at low temperature, because of the decrease in the absorption coefficient of glass itself. The glass bead filters have very low transmittance above the cutoff frequency. One of the filters we fabricated has a transmittance of <5 × 10−4 between 50 and 1000 cm−1.

© 1989 Optical Society of America

Original Manuscript: August 3, 1988
Published: October 15, 1989

Shinji Sato, Satio Hayakawa, Toshio Matsumoto, Hiroshi Matsuo, Hiroshi Murakami, Kiyomi Sakai, Andrew E. Lange, and Paul L. Richards, "Submillimeter wave low pass filters made of glass beads," Appl. Opt. 28, 4478-4481 (1989)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. Y. Yamada, A. Mitsuishi, H. Yoshinaga, “Transmission Filters in the Far-Infrared Region,” J. Opt. Soc. Am. 52, 17–19 (1962). [CrossRef]
  2. H. Yoshinaga, “Recent Developments in Far Infrared Spectroscopic Techniques,” Prog. Opt. 11, 77–122 (1973). [CrossRef]
  3. S. E. Whitcomb, J. Keene, “Low-Pass Interference Filters for Submillimeter Astronomy,” Appl. Opt. 19, 197–198 (1980). [CrossRef] [PubMed]
  4. D. Muehlner, R. Weiss, “Balloon Measurements of the Far Infrared Background Radiation,” Phys. Rev. D 7, 326–344 (1973). [CrossRef]
  5. G. Dall'Oglio, P. De Bernardis, S. Masi, F. Melchiorri, A. Blanco, F. D'Alessandro, S. Fonti, “Polarization Properties of Fluorogold in the Far-Infrared,” Infrared Phys. 22, 185–186 (1982). [CrossRef]
  6. G. Dall'Oglio, B. Melchiorri, P. De Bernardis, S. Masi, “Non-Polarizing Far-Infrared Filters,” Infrared Phys. 22, 307–308 (1982). [CrossRef]
  7. K. R. Armstrong, F. J. Low, “Far-Infrared Filters Utilizing Small Particle Scattering and Antireflection Coatings,” Appl. Opt. 13, 425–430 (1974). [CrossRef] [PubMed]
  8. A. E. Lange, S. Hayakawa, T. Matsumoto, H. Matsuo, H. Murakami, P. L. Richards, S. Sato, “Rocket-Borne Submillimeter Radiometer,” Appl. Opt. 26, 401–409 (1987). [CrossRef] [PubMed]
  9. T. Matsumoto, S. Hayakawa, H. Matsuo, H. Murakami, S. Sato, A. E. Lange, P. L. Richards, “The Submillimeter Spectrum of the Cosmic Background Radiation,” Astrophys. J. 329, 567–571 (1988). [CrossRef]
  10. J. R. Birch, R. J. Cook, A. F. Harding, R. G. Jones, G. D. Price, “The Optical Constants of Ordinary Glass from 0.29 to 4000 cm−1,” J. Phys. D 8, 1353–1358 (1975). [CrossRef]
  11. M. Halpern, H. P. Gush, E. Wishnow, V. De Cosmo, “Far Infrared Transmission of Dielectrics at Cryogenic and Room Temperatures: Glass, Fluorogold, Eccosorb, Stycast, and Various Plastics,” Appl. Opt. 25, 565–570 (1986). [CrossRef] [PubMed]
  12. D. D. Nolte, A. E. Lange, P. L. Richards, “Far-Infrared Dichroic Bandpass Filters,” Appl. Opt. 24, 1541–1545 (1985). [CrossRef] [PubMed]
  13. T. Timusk, P. L. Richards, “Near Millimeter Wave Bandpass Filters,” Appl. Opt. 20, 1355–1360 (1981). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited