학술논문
Integrated photonic-based coronagraphic systems for future space telescopes
Document Type
Working Paper
Author
Desai, Niyati; König, Lorenzo; Por, Emiel; Juanola-Parramon, Roser; Belikov, Ruslan; Laginja, Iva; Guyon, Olivier; Pueyo, Laurent; Fogarty, Kevin; Absil, Olivier; Altinier, Lisa; Baudoz, Pierre; Bidot, Alexis; Bonse, Markus Johannes; Bott, Kimberly; Brandl, Bernhard; Carlotti, Alexis; Casewell, Sarah L.; Choquet, Elodie; Cowan, Nicolas B.; Doelman, David; Fowler, J.; Gebhard, Timothy D.; Gutierrez, Yann; Haffert, Sebastiaan Y.; Herscovici-Schiller, Olivier; Hours, Adrien; Kenworthy, Matthew; Kleisioti, Elina; Krasteva, Mariya; Landman, Rico; Leboulleux, Lucie; Mazoyer, Johan; Millar-Blanchaer, Maxwell A.; Mouillet, David; NDiaye, Mamadou; Snik, Frans; van Dam, Dirk; van Gorkom, Kyle; van Kooten, Maaike; Vaughan, Sophia R.
Source
Subject
Language
Abstract
The detection and characterization of Earth-like exoplanets around Sun-like stars is a primary science motivation for the Habitable Worlds Observatory. However, the current best technology is not yet advanced enough to reach the 10^-10 contrasts at close angular separations and at the same time remain insensitive to low-order aberrations, as would be required to achieve high-contrast imaging of exo-Earths. Photonic technologies could fill this gap, potentially doubling exo-Earth yield. We review current work on photonic coronagraphs and investigate the potential of hybridized designs which combine both classical coronagraph designs and photonic technologies into a single optical system. We present two possible systems. First, a hybrid solution which splits the field of view spatially such that the photonics handle light within the inner working angle and a conventional coronagraph that suppresses starlight outside it. Second, a hybrid solution where the conventional coronagraph and photonics operate in series, complementing each other and thereby loosening requirements on each subsystem. As photonic technologies continue to advance, a hybrid or fully photonic coronagraph holds great potential for future exoplanet imaging from space.
Comment: Conference Proceedings of SPIE: Techniques and Instrumentation for Detection of Exoplanets XI, vol. 12680 (2023)
Comment: Conference Proceedings of SPIE: Techniques and Instrumentation for Detection of Exoplanets XI, vol. 12680 (2023)