Can I read The spectrally modulated self-coherent camera (SM-SCC): Increasing throughput for focal-plane wavefront sensing on EtoBox?

The spectrally modulated self-coherent camera (SM-SCC): Increasing throughput for focal-plane wavefront sensing by Haffert, Sebastiaan Y. is a scholarly article available to read on EtoBox.

What is The spectrally modulated self-coherent camera (SM-SCC): Increasing throughput for focal-plane wavefront sensing about?

The detection and characterization of Earth-like exoplanets is one of the major science drivers for the next generation of telescopes. Current direct imaging instruments are limited by evolving non-common path aberrations (NCPAs). The NCPAs must be compensated for by using the science focal-plane image. A promising sensor is the self-coherent camera (SCC). An SCC modifies the Lyot stop in the coronagraph to introduce a probe electric field. However, the SCC has a weak probe electric field due to the requirements on the pinhole separation. A spectrally modulated self-coherent camera (SM-SCC) is proposed as a solution to the throughput problem. The SM-SCC uses a pinhole with a spectral filter and a dichroic beam splitter, which creates images with and without the probe electric field. This allows the pinhole to be placed closer to the pupil edge and increases the throughput. Combining the SM-SCC with an integral field unit (IFU) can be used to apply more complex modulation patterns to the pinhole and the Lyot stop. A modulation scheme with at least three spectral channels (e.g. IFU) can be used to change the pinhole to an arbitrary aperture with higher throughput. Numerical simulatio

Author

Haffert, Sebastiaan Y.

Published

2021

Language

EN