Laboratory demonstration and numerical simulations of the phase-induced amplitude apodization

Raphael Galicher, Olivier Guyon, Masashi Otsubo, Hiroshi Suto, Stephen Ridgway

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Phase-induced amplitude apodization (PIAA) uses two aspheric optics to produce an achromatic apodization of an incoming beam by changing the geometrical distribution of the light in the pupil plane. Since this apodization is lossless, the sensitivity and angular resolution of the telescope are preserved, theoretically allowing efficient detection of Earth-size planets from space with a 2 m diameter optical telescope. In this paper, we report the first laboratory demonstration of imaging with a PIAA system. First, we show that the optics shapes computed by our algorithm produce an apodized collimated beam only by changing the geometrical distribution of the light and without losing light. We then present images of on- and off-axis point-spread functions and compare them with our numerical simulations.

Original languageEnglish (US)
Pages (from-to)411-420
Number of pages10
JournalPublications of the Astronomical Society of the Pacific
Volume117
Issue number830
DOIs
StatePublished - Apr 1 2005
Externally publishedYes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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