Ms. Leti Garcia Profile

Leti Garcia

at Georgia State Univ.

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Proceedings Article | 28 August 2024 Poster

Achieving high-resolution and high contrast imaging of exo-planets using a hybrid optical telescope

Douglas Hope, Fabien Baron, Megan Birch, Leti Garcia, Stuart Jefferies, Daniel Johns, Jeff Kuhn, Sudhakar Prasad, Dmitriy Shcherbik, Ty Tidrick

Proceedings Volume 13095, 130952L (2024) https://doi.org/10.1117/12.3020372

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Detecting exoplanets around host stars and characterizing the physical properties of these planets requires unprecedented high-resolution and high-contrast imaging. Achieving this using current large-aperture telescopes and optical interferometers faces several key challenges. A new alternative to conventional interferometry and huge full apertures (>8m) is the novel hybrid optical telescope (HOT) design, which consists of phase-distributed aperture arrays. The HOT architecture follows an image-plane interferometric setup by placing apertures constructed from lightweight optics on a ring configuration. The interferometric design of HOT can leverage PSF engineering techniques that can locally create contrast levels up to 1e-7 in the image. We will present results from the analysis of WFS methods for a HOT, including Photon Lanterns, and report on the level of wavefront correction possible for a magnitude range of targets. Based on the WFS analysis, we will report on potential capabilities for achieving quantum-limited super-resolution when imaging faint exo-planets near a host star.

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