论文标题
GPI 2.0：升级到包括新光谱模式的IF
GPI 2.0: Upgrades to the IFS including new spectral modes
论文作者
论文摘要
Gemini Planet Imager（GPI）是一种高对比度成像仪器，旨在直接形象和表征系外行星。 GPI目前正在进行多次升级以提高性能。在本文中，我们讨论了GPI IF的升级。这主要关注新棱镜和过滤器的设计和性能改进。这包括改进的高分辨率棱镜，该棱镜将在Y，J，H和K频段之间提供更均匀分散的光谱。此外，我们在r = 10时同时讨论了新的低分辨率模式和棱镜的设计和实现，该模式和棱镜允许同时在r = 10时对所有四个频段（y，j，h和k频段）进行成像。我们探索使用多播过滤器的可能性，该滤波器会阻止四个光谱带之间的光线。如果实现，我们将讨论多频道过滤器的性能改进。最后，我们探讨了对光学设计进行小更改的可能性，以改善IFS在视野边缘附近的性能。
The Gemini Planet Imager (GPI) is a high-contrast imaging instrument designed to directly image and characterize exoplanets. GPI is currently undergoing several upgrades to improve performance. In this paper, we discuss the upgrades to the GPI IFS. This primarily focuses on the design and performance improvements of new prisms and filters. This includes an improved high-resolution prism which will provide more evenly dispersed spectra across y, J, H and K-bands. Additionally, we discuss the design and implementation of a new low-resolution mode and prism which allow for imaging of all four bands (y, J, H and K-bands) simultaneously at R=10. We explore the possibility of using a multiband filter which would block the light between the four spectral bands. We discuss possible performance improvements from the multiband filter, if implemented. Finally we explore the possibility of making small changes to the optical design to improve the IFS's performance near the edge of the field of view.
