Table 3
Values of the parameters for the CAPM coronagraph optimized with an assembly using nickel thin film for the colored apodization.
| Parameters | 25% bandwidth |
|
|
|
| d1 in λ0/D | 0.868 |
| d2 in λ0/D | 1.478 |
| OPD1 in λ0 | 0.338 |
| OPD2 in λ0 | 0.716 |
| χ 1 | 28.9 |
| χ 2 | 30.2 |
| βλ at λ1 | –0.320 |
| βλ at λ2 | –0.318 |
| βλ at λ3 | –0.319 |
| βλ at λ4 | –0.331 |
| βλ at λ5 | –0.358 |
Notes. The DZPM phase steps are given in optical path difference (OPD). Five wavelengths from λ1 to λ5 have been chosen within the spectral bandwidth Δλ, centered on λ3 = λ0, and equally spaced from one to another by Δλ/5.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.