Efficiency of deformable and segmented mirrors for correction of turbulence-induced wavefront distortions

Abstract

The point spread function (PSF) for a ground-based telescope is calculated for two types of wave front correctors, i.e., deformable and segmented mirrors. The deformable mirror is assumed to be a thin square plate fixed at its center and deformed within a system of lateral forces applied to 20 points. The segmented corrector is a set of square segments with three degrees of freedom, the number of elements varies from 1 to 16. The wavefront distortions are of the Kolmogorov spectrum and are considered to be known for each random realization. It is shown that the PSF calculated for a 9 element segmented corrector (27 degrees of freedom) is close to that obtained for the deformable mirror with 20 degrees of freedom.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	Mark A. Ealey, Fritz Merkle
Pages	768-773
Number of pages	6
Volume	2201
Publication status	Published - 1994
Event	Adaptive Optics in Astronomy - Kailua, HI, USA Duration: 17 Mar 1994 → 18 Mar 1994

Other

Other	Adaptive Optics in Astronomy
City	Kailua, HI, USA
Period	17.3.94 → 18.3.94

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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Efficiency of deformable and segmented mirrors for correction of turbulence-induced wavefront distortions. / Lukin, Vladimir P.; Fortes, Boris V.; Kanev, Fyodor Y.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Mark A. Ealey; Fritz Merkle. Vol. 2201 1994. p. 768-773.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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title = "Efficiency of deformable and segmented mirrors for correction of turbulence-induced wavefront distortions",

abstract = "The point spread function (PSF) for a ground-based telescope is calculated for two types of wave front correctors, i.e., deformable and segmented mirrors. The deformable mirror is assumed to be a thin square plate fixed at its center and deformed within a system of lateral forces applied to 20 points. The segmented corrector is a set of square segments with three degrees of freedom, the number of elements varies from 1 to 16. The wavefront distortions are of the Kolmogorov spectrum and are considered to be known for each random realization. It is shown that the PSF calculated for a 9 element segmented corrector (27 degrees of freedom) is close to that obtained for the deformable mirror with 20 degrees of freedom.",

author = "Lukin, {Vladimir P.} and Fortes, {Boris V.} and Kanev, {Fyodor Y.}",

year = "1994",

language = "English",

isbn = "0819414964",

volume = "2201",

pages = "768--773",

editor = "Ealey, {Mark A.} and Fritz Merkle",

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note = "Adaptive Optics in Astronomy ; Conference date: 17-03-1994 Through 18-03-1994",

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T1 - Efficiency of deformable and segmented mirrors for correction of turbulence-induced wavefront distortions

AU - Lukin, Vladimir P.

AU - Fortes, Boris V.

AU - Kanev, Fyodor Y.

PY - 1994

Y1 - 1994

N2 - The point spread function (PSF) for a ground-based telescope is calculated for two types of wave front correctors, i.e., deformable and segmented mirrors. The deformable mirror is assumed to be a thin square plate fixed at its center and deformed within a system of lateral forces applied to 20 points. The segmented corrector is a set of square segments with three degrees of freedom, the number of elements varies from 1 to 16. The wavefront distortions are of the Kolmogorov spectrum and are considered to be known for each random realization. It is shown that the PSF calculated for a 9 element segmented corrector (27 degrees of freedom) is close to that obtained for the deformable mirror with 20 degrees of freedom.

AB - The point spread function (PSF) for a ground-based telescope is calculated for two types of wave front correctors, i.e., deformable and segmented mirrors. The deformable mirror is assumed to be a thin square plate fixed at its center and deformed within a system of lateral forces applied to 20 points. The segmented corrector is a set of square segments with three degrees of freedom, the number of elements varies from 1 to 16. The wavefront distortions are of the Kolmogorov spectrum and are considered to be known for each random realization. It is shown that the PSF calculated for a 9 element segmented corrector (27 degrees of freedom) is close to that obtained for the deformable mirror with 20 degrees of freedom.

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M3 - Conference contribution

AN - SCOPUS:0028758118

SN - 0819414964

SN - 9780819414960

VL - 2201

SP - 768

EP - 773

BT - Proceedings of SPIE - The International Society for Optical Engineering

A2 - Ealey, Mark A.

A2 - Merkle, Fritz

T2 - Adaptive Optics in Astronomy

Y2 - 17 March 1994 through 18 March 1994

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