Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (1) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
A z-invariant Rayleigh beacon wavefront sensor
Authors:
Ragazzoni, R.; Tordi, M.; Diolaiti, E.; Kirkman, D.
Affiliation:
AA(Astronomical Observatory of Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy ), AB(Astronomical Observatory of Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy ), AC(Department of Astronomy, vicolo dell'Osservatorio 2, University of Padova, Italy ; Department of Astronomy via Ranzani 4, University of Bologna, Italy ), AD(Center for Astrophysics and Space Science, University of California, San Diego, CA 92037-0421, USA)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 327, Issue 3, pp. 949-954. (MNRAS Homepage)
Publication Date:
11/2001
Origin:
MNRAS
MNRAS Keywords:
INSTRUMENTATION: ADAPTIVE OPTICS, INSTRUMENTATION: MISCELLANEOUS
DOI:
10.1046/j.1365-8711.2001.04784.x
Bibliographic Code:
2001MNRAS.327..949R

Abstract

An innovative concept of wavefront sensing for Rayleigh beacons is introduced along with an example of a possible wavefront sensor. This new approach does not require the gating technique to limit the useful range of the laser source and therefore looks simpler to implement than previous Rayleigh concepts, and may additionally allow more efficient use of the photons emitted by the Rayleigh beacon. Our technique is based upon an optical element in the focal plane area whose section does not change for the conjugation of different ranges from the telescope aperture, hence the name z-invariant. The wavefront sensor shown here is an example of this new class. It is a compact pupil-plane wavefront sensor and as such allows for a layer-oriented configuration. It is shown that its sensitivity, while higher than usual gating approaches, is far from the possible limits leading us to speculate that other z-invariant wavefront sensors can reach much larger efficiencies.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints