Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SLM-based Active Focal-Plane Coronagraphy: Status and future on-sky
  prospects   We recently started to investigate how liquid-crystal on silicon (LCOS)
spatial light modulator (SLM) would perform as programmable focal-plane phase
mask (FPM) coronagraphs. Such "adaptive coronagraphs" could potentially help
adapt to observing conditions, but also tackle specific science cases (e.g.
binary stars). Active FPMs may play a role in the context of segmented
telescope pupils, or to implement synchronous coherent differential imaging
(CDI). We present a status update on this work, notably early broadband
contrast performance results using our new Swiss Wideband Active Testbed for
High-contrast imaging (SWATCHi) facility. Finally, we unveil the upcoming
near-infrared PLACID instrument, the Programmable Liquid-crystal Adaptive
Coronagraphic Imager for the 4-m DAG observatory in Turkey, with a first light
planned for the end of the year 2022.

18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess