Diffraction-limited integral-field spectroscopy for extreme adaptive optics systems with the multicore fiber-fed integral-field unit

被引：21

作者：

Haffert, Sebastiaan Y. ^{[1
,2
]}

Harris, Robert J. ^{[3
,4
]}

Zanutta, Alessio ^{[5
]}

Pike, Fraser A. ^{[6
]}

Bianco, Andrea ^{[5
]}

Redaelli, Eduardo ^{[5
]}

Benoit, Aurelien ^{[6
]}

MacLachlan, David G. ^{[6
]}

Ross, Calum A. ^{[6
]}

Gris-Sanchez, Itandehui ^{[7
,8
]}

Trappen, Mareike D. ^{[9
,10
]}

Xu, Yilin ^{[9
,10
]}

Blaicher, Matthias ^{[9
,10
]}

Maier, Pascal ^{[9
,10
]}

Riva, Giulio ^{[5
]}

Sinquin, Baptiste ^{[11
]}

Kulcsar, Caroline ^{[11
]}

Bharmal, Nazim Ali ^{[12
]}

Gendron, Eric ^{[13
]}

Staykov, Lazar ^{[12
]}

Morris, Tim J. ^{[12
]}

Barboza, Santiago ^{[4
]}

Muench, Norbert ^{[4
]}

Bardou, Lisa ^{[12
]}

Prengere, Leonard ^{[11
]}

Raynaud, Henri-Francois ^{[11
]}

Hottinger, Phillip ^{[3
]}

Anagnos, Theodoros ^{[3
,14
]}

Osborn, James ^{[12
]}

Koos, Christian ^{[9
,10
]}

Thomson, Robert R. ^{[6
]}

Birks, Tim A. ^{[7
]}

Snellen, Ignas A. G. ^{[1
]}

Keller, Christoph U. ^{[1
]}

机构：

[1] Leiden Univ, Leiden Observ, Leiden, Netherlands

[2] Univ Arizona, Steward Observ, Tucson, AZ 85719 USA

[3] Heidelberg Univ, Zentrum Astron, Landessternwarte Konigstuhl, Heidelberg, Germany

[4] Max Planck Inst Astron, Heidelberg, Germany

[5] INAF Osservatorio Astron Brera, Merate, LC, Italy

[6] Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh, Midlothian, Scotland

[7] Univ Bath, Dept Phys, Bath, Avon, England

[8] Univ Politecn Valencia, ITEAM Res Inst, Valencia, Spain

[9] Karlsruhe Inst Technol, Inst Microstruct Technol, Eggenstein Leopoldshafen, Germany

[10] Karlsruhe Inst Technol Kit, Inst Photon & Quantum Elect IPQ, Karlsruhe, Germany

[11] Univ Paris Saclay, Inst Opt Grad Sch, Lab Charles Fabry, CNRS, Palaiseau, France

[12] Univ Durham, Dept Phys, Durham, England

[13] Univ Paris, Observ Paris, LESIA, Univ PSL,CNRS,Sorbonne Univ, Meudon, France

[14] Macquarie Univ, MQ Photon Res Ctr, Dept Phys & Astron, N Ryde, NSW, Australia

来源：

JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS | 2020年 / 6卷 / 04期

基金：

欧盟地平线“2020”; 英国科学技术设施理事会;

关键词：

astrophotonics; integral-field spectroscopy; exoplanets; adaptive optics; ORBITAL MOTION; CONTRAST; PLANETS; OPTIMIZATION; RESOLUTION; LIGHT;

D O I：

10.1117/1.JATIS.6.4.045007

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Direct imaging instruments have the spatial resolution to resolve exoplanets from their host star. This enables direct characterization of the exoplanets atmosphere, but most direct imaging instruments do not have spectrographs with high enough resolving power for detailed atmospheric characterization. We investigate the use of a single-mode diffraction-limited integral-field unit that is compact and easy to integrate into current and future direct imaging instruments for exoplanet characterization. This achieved by making use of recent progress in photonic manufacturing to create a single-mode fiber-fed image reformatter. The fiber link is created with three-dimensional printed lenses on top of a single-mode multicore fiber that feeds an ultrafast laser inscribed photonic chip that reformats the fiber into a pseudoslit. We then couple it to a first-order spectrograph with a triple stacked volume phase holographic grating for a high efficiency over a large bandwidth. The prototype system has had a successful first-light observing run at the 4.2-m William Herschel Telescope. The measured on-sky resolving power is between 2500 and 3000, depending on the wavelength. With our observations, we show that single-mode integral-field spectroscopy is a viable option for current and future exoplanet imaging instruments. (C) 2020 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：24

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