Abstract
We have fabricated a millimeter wave observation system using an array of bolometric detectors. The performance of the system depends largely on obtaining identical performance from each bolometer. We achieved a variance in the responsivity of less than 4% except for one of the seven elements. The bolometers had an electrical NEP of 1.3×10−16 W/√Hz under radiation background loading of 30pW. We used an AC bridge readout circuit to significantly improve the stability of the array and showed that observations can be done without a mechanical beam switch. The bolometer array is now in use on the Nobeyama 45-m telescope for 150GHz observations.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. E. Lange, E. Kreysa, S. E. McBride, P. L. Richards, and E. E. Haller, “Improved Fabrication Techniques for Infrared Bolometers,”Int. J. of Infrared and Millimeter Waves 4, 689 (1983)
H. Matsuo, M. Akiba, S. Hayakawa, T. Matsumoto, H. Murakami, M. Noda, S. Sato, M. Inoue, R. Kawabe, M. Tanaka, N. Ukita, “Near-Millimeter Observations with the 45-m Telescope,”Publ. Astron. Soc. Japan 42, 459 (1990)
F. M. Rieke, A. E. Lange, J. W. Beeman, E. E. Haller, “An AC Bridge Readout for Bolometric Detectors,”IEEE Trans. Nucl. Sci. NS-36, No.1, 946 (1989)
T. Wilbanks, M. Devlin, A. E. Lange, S. Sato, J. W. Beeman, E. E. Haller, “Improved Low Frequency Stability of Bolometric Detectors,”IEEE Trans. Nucl. Sci. NS-37, No.2, 566 (1990)
J. C. Mather, “Bolometers: Ultimate sensitivity, Optimization, and Amplifier Coupling,”Appl. Opt. 23, 584 (1984)
E. E. Haller, “Physics and Design of Advanced Infrared Bolometers and Photoconductors,”Proc. CIRP3. Third Intl. Conference on Infrared Physics, W. Rüegsegger and F. K. Kneubühl eds., pp. 43–52 (1984)
E. E. Haller, N. P. Palaio, M. Rodder, W. L. Hansen and E. Kreysa, “NTD Germanium: A Novel Material for Low Temperature Bolometers,”Proc. Fourth Intl. Conf. on Neutron Transmutation Doping of Semiconductor Materials, National Bureau of Standards, June 1–2, 1982, Gaithersburg, MD., R. D. Larrabee ed., Plenum Press, pp. 21–36 (1984)
J. Clarke, G. I. Hoffer, P. L. Richards, and N.-H. Yeh, “Superconductive Bolometers for Submillimeter Wavelengths,”J. Appl. Phys. 48, 4865 (1977)
H. Matsuo, N. Kuno, K. Nakajima, Y. Mizumoto, “Seven Element Bolometer Array for the 45-m telescope,” in prep.
Author information
Authors and Affiliations
Additional information
H. Matsuo thanks those who helped him work on bolometers during his stay in Berkeley, especially to T. Wilbanks, M. Devlin and C. Inman. The authors are also grateful to S. Sato and T. Watabe at Nagoya University for their advice on the AC bridge circuit. This work is partly supported by the Shimazdu Science Foundation.
Rights and permissions
About this article
Cite this article
Kuno, N., Matsuo, H., Mizumoto, Y. et al. Seven matched bolometers for millimeter wave observations. Int J Infrared Milli Waves 14, 749–762 (1993). https://doi.org/10.1007/BF02084285
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02084285