Using Notch-Filter Masks for High Contrast Imaging of Extrasolar Planets

Details Using Notch-Filter Masks for High Contrast Imaging of Extrasolar Planets Using Notch-Filter Masks for High Contrast Imaging of Extrasolar Planets

2004-02-27

arxiv.org/abs/astro-ph/0402654v1

Astrophys.J. 608 (2004) 1095-1099

Astronomy and Astrophysics

Astrophysics

12 pages, 4 figures, Accepted to ApJ

Scientific paper

10.1086/420734

We present the first laboratory experiments using a notch-filter mask, a coronagraphic image mask that can produce infinite dynamic range in an ideal Lyot coronagraph according to scalar diffraction theory. We fabricated the first notch-filter mask prototype with .25 $\micron$ precision using an e-beam lithography machine. Our initial optical tests show that the prototype masks generate contrast levels of 10$^{-5}$ at 3$\lambda/D$ and 10$^{-6}$ at $\sim 8\lambda/D$, with a throughput of 27%. We speculate on the ``as-is'' performance of such a mask in the Hubble Space Telescope.

Affiliated with

Also associated with

No associations

Rating

Using Notch-Filter Masks for High Contrast Imaging of Extrasolar Planets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Using Notch-Filter Masks for High Contrast Imaging of Extrasolar Planets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using Notch-Filter Masks for High Contrast Imaging of Extrasolar Planets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-293581