Amplitude and phase correction for high-contrast imaging using fourier decomposition

Amir Give'on; N. Jeremy Kasdin; Robert J. Vanderbei; Yoav Avitzour

doi:10.1117/12.617383

Amplitude and phase correction for high-contrast imaging using fourier decomposition

Amir Give'on, N. Jeremy Kasdin, Robert J. Vanderbei, Yoav Avitzour

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

Conventional adaptive optics systems correct the wavefront by adjusting a deformable mirror based on measurements of the phase aberration taken in a pupil plane. The ability of this technique, known as phase conjugation, to correct aberrations is normally limited by the maximum spatial frequency of the DM. In this paper we show that conventional phase conjugation is not able to achieve the dark nulls needed for high-contrast imaging. Linear combinations of high frequencies in the aberration at the pupil plane "fold" and appear as low frequency aberrations at the image plane. After describing the frequency folding phenomenon, we present an alternative optimized solution for the shape of the deformable mirror based on the Fourier decomposition of the effective phase and amplitude aberrations.

Original language	English (US)
Article number	590516
Pages (from-to)	1-11
Number of pages	11
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5905
DOIs	https://doi.org/10.1117/12.617383
State	Published - 2005
Event	Techniques and Instrumentation for Detection of Exoplanets II - San Diego, CA, United States Duration: Aug 2 2005 → Aug 4 2005

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Keywords

Adaptive optics
High-contrast imaging
TPF

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10.1117/12.617383

Cite this

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title = "Amplitude and phase correction for high-contrast imaging using fourier decomposition",

abstract = "Conventional adaptive optics systems correct the wavefront by adjusting a deformable mirror based on measurements of the phase aberration taken in a pupil plane. The ability of this technique, known as phase conjugation, to correct aberrations is normally limited by the maximum spatial frequency of the DM. In this paper we show that conventional phase conjugation is not able to achieve the dark nulls needed for high-contrast imaging. Linear combinations of high frequencies in the aberration at the pupil plane {"}fold{"} and appear as low frequency aberrations at the image plane. After describing the frequency folding phenomenon, we present an alternative optimized solution for the shape of the deformable mirror based on the Fourier decomposition of the effective phase and amplitude aberrations.",

keywords = "Adaptive optics, High-contrast imaging, TPF",

author = "Amir Give'on and Kasdin, {N. Jeremy} and Vanderbei, {Robert J.} and Yoav Avitzour",

year = "2005",

doi = "10.1117/12.617383",

language = "English (US)",

volume = "5905",

pages = "1--11",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Techniques and Instrumentation for Detection of Exoplanets II ; Conference date: 02-08-2005 Through 04-08-2005",

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TY - JOUR

T1 - Amplitude and phase correction for high-contrast imaging using fourier decomposition

AU - Give'on, Amir

AU - Kasdin, N. Jeremy

AU - Vanderbei, Robert J.

AU - Avitzour, Yoav

PY - 2005

Y1 - 2005

N2 - Conventional adaptive optics systems correct the wavefront by adjusting a deformable mirror based on measurements of the phase aberration taken in a pupil plane. The ability of this technique, known as phase conjugation, to correct aberrations is normally limited by the maximum spatial frequency of the DM. In this paper we show that conventional phase conjugation is not able to achieve the dark nulls needed for high-contrast imaging. Linear combinations of high frequencies in the aberration at the pupil plane "fold" and appear as low frequency aberrations at the image plane. After describing the frequency folding phenomenon, we present an alternative optimized solution for the shape of the deformable mirror based on the Fourier decomposition of the effective phase and amplitude aberrations.

AB - Conventional adaptive optics systems correct the wavefront by adjusting a deformable mirror based on measurements of the phase aberration taken in a pupil plane. The ability of this technique, known as phase conjugation, to correct aberrations is normally limited by the maximum spatial frequency of the DM. In this paper we show that conventional phase conjugation is not able to achieve the dark nulls needed for high-contrast imaging. Linear combinations of high frequencies in the aberration at the pupil plane "fold" and appear as low frequency aberrations at the image plane. After describing the frequency folding phenomenon, we present an alternative optimized solution for the shape of the deformable mirror based on the Fourier decomposition of the effective phase and amplitude aberrations.

KW - Adaptive optics

KW - High-contrast imaging

KW - TPF

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DO - 10.1117/12.617383

M3 - Conference article

AN - SCOPUS:29844455128

SN - 0277-786X

VL - 5905

SP - 1

EP - 11

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

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

M1 - 590516

T2 - Techniques and Instrumentation for Detection of Exoplanets II

Y2 - 2 August 2005 through 4 August 2005

ER -

Amplitude and phase correction for high-contrast imaging using fourier decomposition

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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