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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 22 — Nov. 15, 2006
  • pp: 3369–3371

Temporal variability of the telluric sodium layer

D. Saul Davis, Paul Hickson, Glen Herriot, and Chiao-Yao She  »View Author Affiliations


Optics Letters, Vol. 31, Issue 22, pp. 3369-3371 (2006)
http://dx.doi.org/10.1364/OL.31.003369


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Abstract

The temporal variability of the telluric sodium layer is investigated by analyzing 28 nights of data obtained with the Colorado State University LIDAR experiment. The mean height power spectrum of the sodium layer was found to be well fitted by a power law over the observed range of frequencies, 10 μ Hz to 4 mHz . The best-fitting power law was found be be 10 β ν α , with α = 1.79 ± 0.02 and β = 1.12 ± 0.40 . Applications to wavefront sensing require knowledge of the behavior of the sodium layer at kilohertz frequencies. Direct measurements at these frequencies do not exist. Extrapolation from low-frequency behavior to high frequencies suggests that this variability may be a significant source of error for laser guide star adaptive optics in large-aperture telescopes.

© 2006 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(110.6770) Imaging systems : Telescopes
(350.1260) Other areas of optics : Astronomical optics

ToC Category:
Other Areas of Optics

History
Original Manuscript: June 23, 2006
Revised Manuscript: August 31, 2006
Manuscript Accepted: September 4, 2006
Published: October 26, 2006

Citation
D. Saul Davis, Paul Hickson, Glen Herriot, and Chiao-Yao She, "Temporal variability of the telluric sodium layer," Opt. Lett. 31, 3369-3371 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-22-3369


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References

  1. J. M. Beckers, Annu. Rev. Astron. Astrophys. 31, 13 (1993). [CrossRef]
  2. C. O'Sullivan, R. M. Redfern, N. Ageorges, H.-C. Holstenberg, W. Hackenberg, T. Ott, S. Rabien, R. Davies, and A. Eckart, Exp. Astron. 10, 147 (2000). [CrossRef]
  3. G. Herriot, P. Hickson, B. E. Ellerbroek, and C. Y. She, "Focus errors from tracking sodium layer altitude variations with laser guide star adaptive optics for the Thirty-Meter Telescope," in Proc. SPIE 6272 (to be published).
  4. C. Y. She, T. Li, R. C. Collins, T. Yuan, B. P. Williams, T. D. Kawahara, J. D. Vance, P. Acott, D. A. Krueger, H.-L. Liu, and M. E. Hagan, Geophys. Res. Lett. 31, L24111 (2004). [CrossRef]

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