Taking the vector vortex coronagraph to the next level for ground- and space-based exoplanet imaging instruments: review of technology developments in the USA, Japan, and Europe

Mawet, Dimitri; Murakami, Naoshi; Delacroix, Christian; Serabyn, Eugene; Absil, Olivier; Baba, Naoshi; Baudrand, J.; Boccaletti, A.; Burruss, Rick; Chipman, Russell A.; Forsberg, Pontus; Habraken, Serge; Hamaguchi, Shoki; Hanot, Charles; Ise, Akitoshi; Karlsson, Mikael; Kern, Brian; Krist, John; Kuhnert, A.; Levine, Marie; Liewer, K. M.; McClain, Stephen C.; McEldowney, Scott; Mennesson, Bertrand; Moody, Dwight; Murakami, Hiroshi; Niessner, Albert F.; Nishikawa, Jun; O’Brien, Nada A.; Oka, Koichi; Park, Peggy; Piron, Pierre; Pueyo, Laurent; Riaud, Pierre; Sakamoto, Moritsugu; Tamura, Motohide; Trauger, John T.; Shemo, David M.; Surdej, Jean; Tabirian, Nelson; Traub, Wesley A.; Wallace, J. Kent; Yokochi, Kaito

doi:10.1117/12.896059

Cited by 22 publications

(17 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We expect the third and subsequent generations of devices in the making to be intrinsically achromatic over 20% bandwidth (thanks to a 3-layer design, see Ref. 1,7). Improved baffling and better polarizers should make the contrast level deeper by an order of magnitude or two, bringing the VVC down to the levels required by Earthlike planet detection and characterization.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Recent results of the second generation of vector vortex coronagraphs on the high-contrast imaging testbed at JPL

et al. 2011

Self Cite

View full text Add to dashboard Cite

The Vector Vortex Coronagraph (VVC) is an attractive internal coronagraph solution to image and characterize exoplanets. It provides four key pillars on which efficient high contrast imaging instruments can be built for ground-and space-based telescopes: small inner working angle, high throughput, clear off-axis discovery space, and simple layout. We present the status of the VVC technology development supported by NASA. We will review recent results of the optical tests of the second-generation topological charge 4 VVC on the actively corrected High Contrast Imaging Testbed (HCIT) at the Jet Propulsion Laboratory (JPL). New VVC contrast records have been established.

show abstract

Section: Discussionmentioning

confidence: 99%

“…1 (these proceedings), and presented in more details in Ref. 1,7,9,10. In short, the VVC phase ramp is purely geometrical hence intrinsically achromatic.…”

Section: Laboratory Setup: the Hcitmentioning

confidence: 99%

Recent results of the second generation of vector vortex coronagraphs on the high-contrast imaging testbed at JPL

et al. 2011

Self Cite

View full text Add to dashboard Cite

show abstract

“…1) is one of the most advanced coronagraphs recently brought to operational level. 2,3 The VC offers small inner working angle (IWA), potentially down to the diffraction limit (0.9λ/D), clear 360 • off-axis field of view/discovery space, unlimited outer working angle, high throughput, intrinsic and/or induced achromaticity, operational simplicity, and compatibility with the Lyot coronagraph layout. It has also recently demonstrated ≃ 10 −9 raw contrast levels in the visible on the High Contrast Imaging Testbed (HCIT) at the Jet Propulsion Laboratory (see E. Serabyn et al 2013, these proceedings, and Ref.…”

Section: Introductionmentioning

confidence: 99%

The multistage and ring-apodized vortex coronagraph: two simple, small-angle coronagraphic solutions for heavily obscured apertures

et al. 2013

Self Cite

View full text Add to dashboard Cite

Here we present two simple concepts to make the vortex coronagraph (VC) immune to heavily obscured apertures. The multi-stage VC (MSVC) uses the ability of the vortex to move light in and out of apertures through multiple VC in series to restore the nominal attenuation capability of the charge 2 vortex regardless of the aperture obscurations. The ring-apodized VC (RAVC) is a one-stage apodizer exploiting the VC Lyot-plane amplitude distribution in order to perfectly null the diffraction from any central obscuration size, and for any vortex topological charge. In this paper, we also emphasize the complementarity and similarities of the RAVC to the recently proposed Active Compensation of Aperture Discontinuities (ACAD, L. Pueyo et al. 2013, these proceedings) and more finely optimized shaped-pupil-like apodizations (A. Carlotti et al. 2013, these proceedings). This paper ends with a brief discussion about the trade-offs these techniques offer in the framework of the Extremely Large Telescopes (ELT) and the Astrophysics Focused Telescope Assets (AFTA).

show abstract

“…The HCIT is a state-of-the-art coronagraph simulator installed into a vacuum chamber. Several kinds of coronagraphs have been tested at the HCIT/JPL [16][17][18][19][20][21][22] .…”

Section: The High-contrast Imaging Testbed (Hcit)mentioning

confidence: 99%

Coronagraph focal-plane phase masks based on photonic crystal technology: recent progress and observational strategy

Murakami

Nishikawa

Traub

et al. 2012

Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave

Self Cite

View full text Add to dashboard Cite

Photonic crystal, an artificial periodic nanostructure of refractive indices, is one of the attractive technologies for coronagraph focal-plane masks aiming at direct imaging and characterization of terrestrial extrasolar planets. We manufactured the eight-octant phase mask (8OPM) and the vector vortex coronagraph (VVC) mask very precisely using the photonic crystal technology. Fully achromatic phase-mask coronagraphs can be realized by applying appropriate polarization filters to the masks. We carried out laboratory experiments of the polarization-filtered 8OPM coronagraph using the High-Contrast Imaging Testbed (HCIT), a state-of-the-art coronagraph simulator at the Jet Propulsion Laboratory (JPL). We report the experimental results of 10 -8 -level contrast across several wavelengths over 10% bandwidth around 800nm. In addition, we present future prospects and observational strategy for the photonic-crystal mask coronagraphs combined with differential imaging techniques to reach higher contrast. We proposed to apply the polarization-differential imaging (PDI) technique to the VVC, in which we built a two-channel coronagraph using polarizing beam splitters to avoid a loss of intensity due to the polarization filters. We also proposed to apply the angular-differential imaging (ADI) technique to the 8OPM coronagraph. The 8OPM/ADI mode mitigates an intensity loss due to a phase transition of the mask and provides a full field of view around central stars. We present results of preliminary laboratory demonstrations of the PDI and ADI observational modes with the phase-mask coronagraphs.

show abstract

Taking the vector vortex coronagraph to the next level for ground- and space-based exoplanet imaging instruments: review of technology developments in the USA, Japan, and Europe

Cited by 22 publications

References 43 publications

Recent results of the second generation of vector vortex coronagraphs on the high-contrast imaging testbed at JPL

Recent results of the second generation of vector vortex coronagraphs on the high-contrast imaging testbed at JPL

The multistage and ring-apodized vortex coronagraph: two simple, small-angle coronagraphic solutions for heavily obscured apertures

Coronagraph focal-plane phase masks based on photonic crystal technology: recent progress and observational strategy

Contact Info

Product

Resources

About