Abstract

Future space observatory missions are forecasting the need for sensing and controlling wavefront error and system alignment stability to picometer scale. Picometer stability performance demands precision knowledge of the mirror and metering structure materials to the same degree. A high-speed electronic speckle pattern interferometer was designed and built to demonstrate measurements of both static and dynamic responses of picometer amplitudes in materials of diffuse surface subjected to very low energy disturbances. This paper describes the details of a test to impart a dynamic disturbance of picometer scale and measure the response of a composite material. The results of the test are also reported and show conclusively that sub-picometer scale effects can be accurately measured in an open test environment outside a vacuum chamber.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Measurement of picometer-scale mirror dynamics

Babak Saif, David Chaney, Perry Greenfield, Marcel Bluth, Kyle Van Gorkom, Koby Smith, Josh Bluth, Lee Feinberg, James C. Wyant, Michael North-Morris, and Ritva Keski-Kuha
Appl. Opt. 56(23) 6457-6465 (2017)

Nanometer level characterization of the James Webb Space Telescope optomechanical systems using high-speed interferometry

Babak Saif, David Chaney, W. Scott Smith, Perry Greenfield, Warren Hack, Josh Bluth, Austin Van Otten, Marcel Bluth, James Sanders, Ritva Keski-Kuha, Lee Feinberg, Michael North-Morris, and James Millerd
Appl. Opt. 54(13) 4285-4298 (2015)

Dual-wavelength low-coherence instantaneous phase-shifting interferometer to measure the shape of a segmented mirror with subnanometer precision

Rainer Wilhelm, Bruno Luong, Alain Courteville, Sébastien Estival, Frédéric Gonté, and Nicolas Schuhler
Appl. Opt. 47(29) 5473-5491 (2008)

References

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
Login to access OSA Member Subscription

Cited By

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
Login to access OSA Member Subscription

Figures (10)

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
Login to access OSA Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables 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
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations 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
Login to access OSA Member Subscription

Metrics

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
Login to access OSA Member Subscription