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Optics Communications, ISSN 0030-4018, 09/2018, Volume 423, pp. 186 - 199
In this paper is presented an analytical study of the azimuthal phase-mask coronagraph currently envisioned for detecting and characterizing extra-solar... 
Phase mask coronagraph | Fourier optics | Coronagraphy | Physics - Instrumentation and Methods for Astrophysics
Journal Article
Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, 11/2000, Volume 112, Issue 777, pp. 1479 - 1486
We describe a new type of coronagraph, based on the principle of a phase mask as proposed by Roddier and Roddier a few years ago but using an original mask... 
Quadrants | Wavelengths | Planets | Phase shift | Extrasolar planets | Stars | Telescopes | Coronagraphs | Planetary orbits | Atmospherics | EXTRASOLAR PLANETS | INTERFEROMETER | ASTRONOMY & ASTROPHYSICS | STELLAR CORONAGRAPH | SOLAR PLANETS | FUTURE | CORONOGRAPHY
Journal Article
Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, 06/2014, Volume 126, Issue 940, pp. 586 - 594
High performance coronagraphic imaging of faint structures around bright stars at small angular separations requires fine control of tip, tilt, and other low... 
Starlight | Radians | Geometric planes | Pointing error | Imaging | Article | Sensors | Calibration | Phase error | Coronagraphs | Optical reflection | Astronomical Techniques | SENSITIVITY | LIMITS | ASTRONOMY & ASTROPHYSICS | Physics - Instrumentation and Methods for Astrophysics
Journal Article
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 08/2013, Volume 8864
We present a new Adaptive Phase Mask (APM) coronagraph design enabling Amplitude and Phase Modulation control (APM). The Adaptive Phase mask coronagraph is a... 
Synchronous | Phase modulation | Amplitudes | Dynamics | Dynamic range | Coronagraphs | Electric fields | Masks
Journal Article
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 2016, Volume 9912
Conference Proceeding
Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, 11/2004, Volume 116, Issue 825, pp. 1061 - 1071
We present the first high‐contrast images obtained at the ESO Very Large Telescope using a four‐quadrant phase mask coronagraph. The two‐night commissioning... 
Wave diffraction | Astronomical objects | Wavelengths | Phase shift | Stars | Extrasolar planet detection | Imaging | Telescopes | Coronagraphs | Angular separation | PLANETS | SKY | PERFORMANCE | ASTRONOMY & ASTROPHYSICS
Journal Article
Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, 09/2001, Volume 113, Issue 787, pp. 1145 - 1154
In the first paper in this series, we described the principle of a coronagraph utilizing a four‐quadrant phase mask and the results of numerical simulations... 
Quadrants | Wavelengths | Phase shift | Spectral bands | Dynamic range | Signal noise | Signal bandwidth | Polynomials | Photons | Phase error | ACHROMATIC INTERFERE CORONAGRAPHY | PERFORMANCE | ASTRONOMY & ASTROPHYSICS | STELLAR CORONAGRAPH | Optics | Physics
Journal Article
Journal of Astronomical Telescopes, Instruments, and Systems, ISSN 2329-4124, 1/2016, Volume 2, Issue 1, pp. 011018 - 011018
The phase-induced amplitude apodization complex mask coronagraph (PIAACMC) provides an efficient way to control diffraction propagation effects caused by the... 
optical design | coronagraphy | phase-induced amplitude apodization | Exoplanets | exoplanets | INSTRUMENTS & INSTRUMENTATION | ENGINEERING, AEROSPACE | OPTICS
Journal Article
Optics Express, ISSN 1094-4087, 07/2008, Volume 16, Issue 14, pp. 10200 - 10207
Using an optical vortex coronagraph and simple adaptive optics techniques, we have made the first convincing demonstration of an optical vortex coronagraph... 
PLANET | FILTER | OPTICS | ELECTRON-BEAM LITHOGRAPHY | PHASE-MASK CORONAGRAPH | LABORATORY DEMONSTRATION
Journal Article
Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, 06/2003, Volume 115, Issue 808, pp. 712 - 719
We report a laboratory experiment to assess the performance and limitations of the four‐quadrant phase mask coronagraph we proposed 2 years ago. A total flux... 
Quadrants | Wavelengths | Semiconductor lasers | Phase shift | Stars | Spectral bands | Coronagraphs | Resins | Antireflection coatings | Pixels | PLANETS | ASTRONOMY & ASTROPHYSICS | STELLAR CORONAGRAPH
Journal Article
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 2017, Volume 10400
Conference Proceeding
Publications of the Astronomical Society of the Pacific, ISSN 0004-6280, 03/2018, Volume 130, Issue 985, p. 35001
Journal Article
Optics Express, ISSN 1094-4087, 03/2013, Volume 21, Issue 6, pp. 7400 - 7410
A vector vortex coronagraph (VVC) is one of promising means for imaging extremely faint objects around bright stars such as exoplanets. We present a design of... 
TELESCOPES | ELEMENTS | MANIPULATION | STAR | PHASE-MASK CORONAGRAPH | PANCHARATNAM PHASE | FABRICATION | CRYSTAL | OPTICS | VARIANT SUBWAVELENGTH GRATINGS | POLARIZED-LIGHT | Color | Telescopes | Image Enhancement - instrumentation | Computer-Aided Design | Equipment Design | Refractometry - instrumentation | Equipment Failure Analysis
Journal Article
Optics Letters, ISSN 0146-9592, 08/2002, Volume 27, Issue 16, pp. 1373 - 1375
A nulling stellar coronagraph based on polarization interferometry is proposed that has achromatic characteristics. The principle and the optical setup of the... 
PHASE-MASK CORONAGRAPH | 4-QUADRANT | OPTICS
Journal Article
Nature, ISSN 0028-0836, 04/2010, Volume 464, Issue 7291, pp. 1018 - 1020
Three exoplanets around the star HR 8799 have recently been discovered by means of differential imaging with large telescopes. Bright scattered starlight... 
PLANETS | TELESCOPE | PHASE-MASK CORONAGRAPH | MULTIDISCIPLINARY SCIENCES | OPTICAL VORTEX CORONAGRAPH | HR 8799 | Telescope | Usage | Research | Observations | Stars | Space telescopes | Noise | Stars & galaxies | Astronomy | Planets | Diffraction | Imaging | Images | Telescopes | Photons | Coronagraphs
Journal Article
Optics Express, ISSN 1094-4087, 02/2009, Volume 17, Issue 3, pp. 1902 - 1918
In this paper, after briefly reviewing the theory of vectorial vortices, we describe our technological approach to generating the necessary phase helix, and... 
PANCHARATNAM PHASE | MANIPULATION | IMAGE | OPTICS | PHASE-MASK CORONAGRAPH | ADAPTIVE OPTICS | Physics - Instrumentation and Methods for Astrophysics
Journal Article
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