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Optics Letters

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  • Vol. 15, Iss. 4 — Feb. 15, 1990
  • pp: 236–238

422.7-nm atomic filter with superior solar background rejection

Jerry A. Gelbwachs  »View Author Affiliations


Optics Letters, Vol. 15, Issue 4, pp. 236-238 (1990)
http://dx.doi.org/10.1364/OL.15.000236


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Abstract

A novel atomic resonance filter with powerful solar background rejection is proposed. The filter wavelength matches the g Fraunhofer line at 422.7 nm. Atomic filtering occurs within the singlet manifold of neutral calcium. Superior sunlight discrimination arises mainly from two factors: overlay with an intense Fraunhofer line and signal levels devoid of fine and hyperfine structures. The new filter should exhibit high throughput and low noise.

© 1990 Optical Society of America

History
Original Manuscript: September 18, 1989
Manuscript Accepted: December 11, 1989
Published: February 15, 1990

Citation
Jerry A. Gelbwachs, "422.7-nm atomic filter with superior solar background rejection," Opt. Lett. 15, 236-238 (1990)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-15-4-236


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References

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  15. W. L. Wolfe, G. J. Zissis, eds., The Infrared Handbook (Environmental Research Institute of Michigan, Ann Arbor, Mich., 1978), pp. 3–37.

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