Vortex fiber nulling for exoplanet observations. I. Experimental demonstration in monochromatic light
| العنوان: | Vortex fiber nulling for exoplanet observations. I. Experimental demonstration in monochromatic light |
|---|---|
| المؤلفون: | Garreth Ruane, Dimitri Mawet, Nicolas Levraud, Nemanja Jovanovic, Daniel Echeverri |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Optical fiber, FOS: Physical sciences, Physics::Optics, 02 engineering and technology, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, law.invention, 010309 optics, Optics, Planet, law, Condensed Matter::Superconductivity, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Spectrograph, Instrumentation and Methods for Astrophysics (astro-ph.IM), Nuller, Astrophysics::Galaxy Astrophysics, Physics, Earth and Planetary Astrophysics (astro-ph.EP), business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Exoplanet, Vortex, Monochromatic color, Astrophysics::Earth and Planetary Astrophysics, 0210 nano-technology, business, Astrophysics - Instrumentation and Methods for Astrophysics, Optical vortex, Optics (physics.optics), Astrophysics - Earth and Planetary Astrophysics, Physics - Optics |
| الوصف: | Vortex fiber nulling is a method for spectroscopically characterizing exoplanets at small angular separations, $\lesssim\lambda/D$, from their host star. The starlight is suppressed by creating an optical vortex in the system point spread function, which prevents the stellar field from coupling into the fundamental mode of a single-mode optical fiber. Light from the planet, on the other hand, couples into the fiber and is routed to a spectrograph. Using a prototype vortex fiber nuller (VFN) designed for monochromatic light, we demonstrate coupling fractions of $6\times10^{-5}$ and $>0.1$ for the star and planet, respectively. Comment: Submitted to Optics Letters. Revised for publication |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::711fc63e4d19329e1581519dd97dd75b http://arxiv.org/abs/1811.02083 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....711fc63e4d19329e1581519dd97dd75b |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |