Abstract

Full aperture testing of large cryogenic optical systems has been impractical due to the difficulty of operating a large collimator at cryogenic temperatures. The Thermal Sieve solves this problem by acting as a thermal barrier between an ambient temperature collimator and the cryogenic system under test. The Thermal Sieve uses a set of thermally controlled baffles with array of holes that are lined up to pass the light from the collimator without degrading the wavefront, while attenuating the thermal background by nearly 4 orders of magnitude. This paper provides the theory behind the Thermal Sieve system, evaluates the optimization for its optical and thermal performance, and presents the design and analysis for a specific system.

© 2012 OSA

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References

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  1. M. Clampin, “Status of the James Webb Space Telescope (JWST),” Proc. SPIE 7010, 70100L, 70100L-7 (2008).
    [CrossRef]
  2. D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
    [CrossRef]
  3. S. C. West, S. H. Bailey, J. H. Burge, B. Cuerden, J. Hagen, H. M. Martin, and M. T. Tuell, “Wavefront control of the Large Optics Test and Integration Site (LOTIS) 6.5m collimator,” Appl. Opt. 49(18), 3522–3537 (2010).
    [CrossRef] [PubMed]
  4. D. W. Kim and J. H. Burge, “cryogenic thermal mask for space-cold optical testing for space optical systems,” in OF&T, OSA Technical Digest Series (Optical Society of America), FTuS2 (2010).
  5. S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
    [CrossRef]
  6. E. Hecht, Optics, 4th ed. (Pearson Education, 2002), Chap. 10.
  7. J. Goodman, Introduction to Fourier Optics, 3rd ed. (Roberts & Company Publishers, 2005), Chap. 4.

2011 (1)

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

2010 (1)

2008 (2)

M. Clampin, “Status of the James Webb Space Telescope (JWST),” Proc. SPIE 7010, 70100L, 70100L-7 (2008).
[CrossRef]

S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
[CrossRef]

Bailey, S. H.

Bell, R.

S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
[CrossRef]

Brown, B.

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

Burge, J. H.

Chaney, D. M.

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

Clampin, M.

M. Clampin, “Status of the James Webb Space Telescope (JWST),” Proc. SPIE 7010, 70100L, 70100L-7 (2008).
[CrossRef]

Cochrane, A.

S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
[CrossRef]

Cuerden, B.

Gallagher, B.

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

Hadaway, J. B.

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

Hagen, J.

Hutchison, S. B.

S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
[CrossRef]

Lewis, J.

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

Martin, H. M.

McCord, S.

S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
[CrossRef]

Tuell, M. T.

West, S. C.

Appl. Opt. (1)

Proc. SPIE (3)

S. B. Hutchison, A. Cochrane, S. McCord, and R. Bell, “Update status and capabilities for the LOTIS 6.5 meter collimator,” Proc. SPIE 7106, 710618, 710618-12 (2008).
[CrossRef]

M. Clampin, “Status of the James Webb Space Telescope (JWST),” Proc. SPIE 7010, 70100L, 70100L-7 (2008).
[CrossRef]

D. M. Chaney, J. B. Hadaway, J. Lewis, B. Gallagher, and B. Brown, “Cryogenic performance of the JWST primary mirror segment engineering development unit,” Proc. SPIE 8150, 815008, 815008-12 (2011).
[CrossRef]

Other (3)

E. Hecht, Optics, 4th ed. (Pearson Education, 2002), Chap. 10.

J. Goodman, Introduction to Fourier Optics, 3rd ed. (Roberts & Company Publishers, 2005), Chap. 4.

D. W. Kim and J. H. Burge, “cryogenic thermal mask for space-cold optical testing for space optical systems,” in OF&T, OSA Technical Digest Series (Optical Society of America), FTuS2 (2010).

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