Application of wavelength diversity for astronomical adaptive optics imaging

Daniel Burke; Nicholas Devaney; Julian Christou; Markus Hartung

doi:10.1117/12.856953

28 July 2010 Application of wavelength diversity for astronomical adaptive optics imaging

Daniel Burke, Nicholas Devaney, Julian Christou, Markus Hartung

Proceedings Volume 7736, Adaptive Optics Systems II; 77365U (2010) https://doi.org/10.1117/12.856953
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

Wavelength diversity uses multi-wavelength data to simultaneously estimate the point spread function (PSF) of an imaging system and the astronomical object of interest e.g. a binary star with a faint companion. The algorithm presented does not recover the PSFs directly but estimates the Zernike coefficients of the residual wavefront phase aberration in the pupil of the telescope. For dual, and triple, channel point source imaging, the common wavefront is estimated and the residuals between the measured and estimated PSFs correspond to non common path aberrations in each of the imaging paths.

Citation Download Citation

Daniel Burke, Nicholas Devaney, Julian Christou, and Markus Hartung "Application of wavelength diversity for astronomical adaptive optics imaging", Proc. SPIE 7736, Adaptive Optics Systems II, 77365U (28 July 2010); https://doi.org/10.1117/12.856953

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