Exoplanet detection and characterization with highly multiplexed Bragg gratings

Abstract

Detection of exoplanets using high-resolution spectroscopy is limited by a balance between spatial and spectral sampling and resolution. We propose to use a highly multiplexed Bragg grating (HMBG) to optically correlate relevant parts of a spectrum. The HMBG sidesteps the trade-off between spatial and spectral resolution, increasing the number of available spatial pixels by 10^3-10^4. The HMBG is implemented using an acousto-optical filter. This filter gives the freedom to dynamically combine any desired set of spectral lines. We will show the simulated performance of a system with an HMBG in a realistic environment.

Authors 5

1. Fedde Fagginger Auer Aachen

   Leiden University

   Affiliation as printed

   Leiden University (Netherlands)

2. Sebastiaan Y. Haffert

   University of Arizona

   Affiliation as printed

   The University of Arizona, (United States)

3. Christoph U. Keller Aachen

   Leiden University

   Affiliation as printed

   Leiden University (Netherlands)

4. Frans Snik Aachen

   Leiden University

   Affiliation as printed

   Leiden University (Netherlands)

5. Emiel H. Por Aachen

   Leiden University

   Affiliation as printed

   Leiden University (Netherlands)