OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 25 — Sep. 1, 2000
  • pp: 4513–4523

Imaging performance of telescope mirrors for far-ultraviolet astronomy

Raymond G. Ohl, Timo T. Saha, Scott D. Friedman, Robert H. Barkhouser, and H. Warren Moos  »View Author Affiliations


Applied Optics, Vol. 39, Issue 25, pp. 4513-4523 (2000)
http://dx.doi.org/10.1364/AO.39.004513


View Full Text Article

Enhanced HTML    Acrobat PDF (789 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We describe image testing, surface metrology, and modeling of telescope mirrors (0.5 m in diameter, f/4.3) for the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite. Laboratory image testing of wavelengths in the visible, vacuum, and midultraviolet validated a theoretical analysis by use of the Optical Surface Analysis Code (OSAC). Our modeling is based on surface metrology, including measurements of figure, midfrequency error, and microroughness. This combination of metrology, out-of-band performance testing, and modeling verified that the mirrors would meet mission requirements. We use OSAC to predict the FUSE telescope’s far-ultraviolet (90–120-nm) point-spread function and assess its effect on instrument efficiency. The mirrors have a 90% encircled energy diameter of 1.5 arc sec at λ = 100 nm. Including the effects of spacecraft pointing error, the mirrors have a predicted average slit transmission at λ = 100 nm of approximately 87% and 96% for the 1.25- and 4-arc sec-wide spectrograph slits, respectively, where the required transmissions are 50% and 95%.

© 2000 Optical Society of America

OCIS Codes
(110.2960) Imaging systems : Image analysis
(110.6770) Imaging systems : Telescopes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(220.4840) Optical design and fabrication : Testing
(260.7210) Physical optics : Ultraviolet, vacuum

History
Original Manuscript: December 14, 1999
Revised Manuscript: March 21, 2000
Published: September 1, 2000

Citation
Raymond G. Ohl, Timo T. Saha, Scott D. Friedman, Robert H. Barkhouser, and H. Warren Moos, "Imaging performance of telescope mirrors for far-ultraviolet astronomy," Appl. Opt. 39, 4513-4523 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-25-4513

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited