Manufacture and use of a Shack-Hartmann sensor with a multifaceted prism for simultaneous sensing of multiple wavefronts

Nicole Putnam, Miguel Snyder, Thomas Stalcup, J Roger P Angel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A new requirement for astronomical adaptive optics is the simultaneous measurement of wavefronts of multiple natural or laser guide stars. We have devised a new implementation of the Shack-Hartmann method to image multiple spot patterns on a single imaging array. An image of the telescope pupil is formed on a multifaceted prism with rings of subapertures. All beacons in the field are then imaged by a camera lens to form the same spot pattern repeated over the detector format. The facets are fly-cut in polycarbonate, tangent to a convex surface. In order to minimize scattering and aid manufacturing, the prism angles are exaggerated, and an index-matching fluid is used to reduce the refracted angles by a factor of 15. Results from lab and telescope tests are presented.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsD.B. Calia, B.L. Ellerbroek, R. Ragazzoni
Pages1138-1145
Number of pages8
Volume5490
EditionPART 3
DOIs
StatePublished - 2004
EventAdvancements in Adaptive Optics - Glasgow, United Kingdom
Duration: Jun 21 2004Jun 25 2004

Other

OtherAdvancements in Adaptive Optics
CountryUnited Kingdom
CityGlasgow
Period6/21/046/25/04

Fingerprint

Wavefronts
Prisms
Telescopes
prisms
telescopes
Camera lenses
laser guide stars
beacons
Adaptive optics
sensors
Sensors
polycarbonates
pupils
Polycarbonates
adaptive optics
tangents
Stars
format
flat surfaces
manufacturing

Keywords

  • Adaptive optics
  • Index matching
  • Laser guide star
  • MCAO
  • Prism array
  • Tomography
  • Wavefront sensor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Putnam, N., Snyder, M., Stalcup, T., & Angel, J. R. P. (2004). Manufacture and use of a Shack-Hartmann sensor with a multifaceted prism for simultaneous sensing of multiple wavefronts. In D. B. Calia, B. L. Ellerbroek, & R. Ragazzoni (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (PART 3 ed., Vol. 5490, pp. 1138-1145). [200] https://doi.org/10.1117/12.579781

Manufacture and use of a Shack-Hartmann sensor with a multifaceted prism for simultaneous sensing of multiple wavefronts. / Putnam, Nicole; Snyder, Miguel; Stalcup, Thomas; Angel, J Roger P.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / D.B. Calia; B.L. Ellerbroek; R. Ragazzoni. Vol. 5490 PART 3. ed. 2004. p. 1138-1145 200.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Putnam, N, Snyder, M, Stalcup, T & Angel, JRP 2004, Manufacture and use of a Shack-Hartmann sensor with a multifaceted prism for simultaneous sensing of multiple wavefronts. in DB Calia, BL Ellerbroek & R Ragazzoni (eds), Proceedings of SPIE - The International Society for Optical Engineering. PART 3 edn, vol. 5490, 200, pp. 1138-1145, Advancements in Adaptive Optics, Glasgow, United Kingdom, 6/21/04. https://doi.org/10.1117/12.579781
Putnam N, Snyder M, Stalcup T, Angel JRP. Manufacture and use of a Shack-Hartmann sensor with a multifaceted prism for simultaneous sensing of multiple wavefronts. In Calia DB, Ellerbroek BL, Ragazzoni R, editors, Proceedings of SPIE - The International Society for Optical Engineering. PART 3 ed. Vol. 5490. 2004. p. 1138-1145. 200 https://doi.org/10.1117/12.579781
Putnam, Nicole ; Snyder, Miguel ; Stalcup, Thomas ; Angel, J Roger P. / Manufacture and use of a Shack-Hartmann sensor with a multifaceted prism for simultaneous sensing of multiple wavefronts. Proceedings of SPIE - The International Society for Optical Engineering. editor / D.B. Calia ; B.L. Ellerbroek ; R. Ragazzoni. Vol. 5490 PART 3. ed. 2004. pp. 1138-1145
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