偏光収差が存在する場合のペアワイズ型推定によるコロナグラフ波面補正の基本的限界

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Updated: Jan 8, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Scott D Will, Jaren N Ashcraft, Christopher C Stark

|December 19, 2025

Abstract:

Polarization-dependent aberrations, or polarization aberrations, arise in optical systems due to diattenuation and retardance effects induced by optical surfaces along the beam path. In exoplanet coronagraphy, polarization aberrations fundamentally limit imaging performance at small angular separations, and must be carefully analyzed for extremely high-contrast systems such as NASA's planned Habitable Worlds Observatory. In this paper, we derive a method for calculating the theoretical bound for coronagraph performance in the presence of polarization aberrations after correction by the coronagraph's deformable mirrors, and confirm via simulations that it bounds actual wavefront control loop performance. Due to its simplicity and computational efficiency, this method is highly useful for rapid analysis of telescope and coronagraph designs during concept development.

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コロナグラフ偏光収差系外惑星撮像波面補正ハビタブル・ワールド観測所

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$Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity$ 05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

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