Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integrated optics interferometric four telescopes nuller   Nulling interferometry has been identified as a competitive technique for the
detection of extrasolar planets. The technique consists in combining
out-of-phase pairs of telescopes to null effectively the light of a bright star
an reveal the dim glow of the companion. We have manufactured and tested with
monochromatic light an integrated optics component which combines a linear
array of 4 telescopes in the nulling mode envisaged by Angel & Wolf (1997). Our
testbench simulates the motion of a star in the sky. The tests have
demonstrated a nulling scaling as the fourth power of the baseline delay.

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The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin