The four-quadrant phase-mask coronagraph: White light laboratory results with an achromatic device

被引：0

作者：

Mawet, D. ^{[1
]}

Riaud, P. ^{[1
]}

Baudrand, J. ^{[2
]}

Baudoz, P. ^{[2
]}

Boccaletti, A. ^{[2
]}

Dupuis, O. ^{[2
]}

Rouan, D. ^{[2
]}

机构：

[1] Université de Liège, 17 Allée du 6 Août, 4000 Sart-Tilman, Belgium

[2] LESIA, Observatoire de Paris-Meudon, 5 pl J. Janssen, 92195 Meudon, France

来源：

Astronomy and Astrophysics | 2006年 / 448卷 / 02期

关键词：

Achromatic coronagraphs are the subject of intensive research since they will be mandatory for many programs which aim at detecting and characterizing exoplanets. We report a laboratory experiment assessing the performance of the Four-Quadrant Phase-Mask coronagraph (FQPM) over a broadband wavelength range (R 2). The achromatization of the FQPM is provided by achromatic halfwave plates (HWP). These phase shifters combine birefringent plates made of different materials with properly chosen thicknesses. The HWP thickness control is relaxed by two orders of magnitudes with respect to the classical (non-birefringent) dispersive plate approach. In our experiment we used a two stage stack of Quartz and MgF2. This combination allows to cover a large spectral range in the visible (500-900 nm) with a small phase error residual around π (0.12 rad rms). With this achromatization; we obtained an attenuation of 755 on the white light PSF peak. This solution is directly applicable to ground-based telescopes using high order adaptive optics such as the ESO's VLT-Planet Finder project and could easily be transposed in the mid-infrared domain for future space-based missions like DARW1N/TPF. © ESO 2006;

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摘要：

Journal article (JA)

引用

页码：801 / 808

共 26 条

[1] The four-quadrant phase-mask coronagraph: white light laboratory results with an achromatic device
Mawet, D
Riaud, P
Baudrand, J
Baudoz, P
Boccaletti, A
Dupuis, O
Rouan, D
ASTRONOMY & ASTROPHYSICS, 2006, 448 (02) : 801 - 808
[2] The four-quadrant phase-mask coronagraph. II. Simulations
Riaud, P
Boccaletti, A
Rouan, D
Lemarquis, F
Labeyrie, A
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2001, 113 (787) : 1145 - 1154
[3] The four-quadrant phase-mask coronagraph.: I.: Principle
Rouan, D
Riaud, P
Boccaletti, A
Clénet, Y
Labeyrie, A
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2000, 112 (777) : 1479 - 1486
[4] Recent experimental results with the four-quadrant phase-mask coronograph
Riaud, P
Boccaletti, A
Baudrand, J
Reess, JM
Rouan, D
TOWARDS OTHER EARTHS: DARWIN/TPF AND THE SEARCH FOR EXTRASOLAR TERRESTRIAL PLANETS, PROCEEDINGS, 2003, 539 : 361 - 366
[5] The four-quadrant phase mask coronagraph. III. Laboratory performance
Riaud, P
Boccaletti, A
Baudrand, J
Rouan, D
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2003, 115 (808) : 712 - 719
[6] Development and characterization of Four-Quadrant Phase Mask coronagraph (FQPM)
Bonafous, M.
Galicher, R.
Baudoz, P.
Firminy, J.
Boussaha, F.
ADVANCES IN OPTICAL AND MECHANICAL TECHNOLOGIES FOR TELESCOPES AND INSTRUMENTATION II, 2016, 9912
[7] Pupil-remapping mirrors for a four-quadrant phase mask coronagraph
Murakami, N
Baba, N
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2005, 117 (829) : 295 - 299
[8] Four-quadrant phase mask coronagraph with a Jacquinot-Lyot stop
Murakami, N.
Uemura, R.
Baba, N.
Sato, Y.
Nishikawa, J.
Tamura, M.
ASTROPHYSICAL JOURNAL, 2008, 677 (02): : 1425 - 1432
[9] Estimated performances of a four-quadrant phase mask coronagraph for planet detection
Rouan, D
Boccaletti, A
Riaud, P
Baudrand, J
HIGH-CONTRAST IMAGING FOR EXO-PLANET DETECTION, 2003, 4860 : 192 - 199
[10] Achromatic four quadrant phase mask coronagraph using the dispersion of form birefringence
Mawet, D
Lenaerts, C
Moreau, V
Renotte, Y
Rouan, D
Surdej, J
ASTRONOMY WITH HIGH CONTRAST IMAGING: FROM PLANETARY SYSTEMS TO ACTIVE GALACTIC NUCLEI, 2003, 8 : 117 - 128

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