Abstract
We propose a new scheme of an achromatic nulling interferometer-coronagraph to gain a higher contrast in the star-planet model. Two successive rotational shearing interferometers improve the interference contrast limited by insufficient spatial coherence of a physically extended source, a star. The theory and simulations have been confirmed by an experiment. The theoretical value of the coronagraphic contrast has been improved from 104 to 1010 for an angular size of the extended source of 10−2λ/D, where λ is the wave-length and D is the telescope’s aperture diameter.
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References
O. Guyon, E. A. Pluzhnik, M. J. Kuchner, B. Collins, and S. T. Ridgway, arXiv:astro-ph/0608506.
Y. Rabbia, J. Gay, J.-P. Rivet, and J.-L. Schneider, Eur. Space Agency [Spec. Publ.], SP-522 (2003).
J. T. Trauger and W. A. Traub, Nature (London) 446, 771 (2007).
D. Rouan, P. Riaud, A. Boccaletti, Y. Clenet, and A. Labeyrie, Publ. Astron. Soc. Pac. 112, 1479 (2000).
F. Roddier and C. Roddier, Publ. Astron. Soc. Pac. 109, 815 (1997).
C. van der Avoort, A. Mieremet, S. Pereira, and J. Braat, Proc. SPIE—Int. Soc. Opt. Eng. 5491, 816 (2004).
J. Nishikawa, T. Kotani, N. Murakami, N. Baba, Y. Itoh, and M. Tamura, Astron. Astrophys. 435, 379 (2005).
O. Guyon and M. Shao, Publ. Astron. Soc. Pac. 118, 860 (2006).
P. Baudoz, J. Gay, and Y. Rabbia, Astron. Soc. Pac. Conf. Ser. 134, 254 (1998).
P. Baudoz, Y. Rabbia, and J. Gay, Astron. Astrophys., Suppl. Ser. 141, 319 (2000).
P. Baudoz, A. Boccaletti, Y. Rabbia, and J. Gay, Publ. Astron. Soc. Pac. 117, 1004 (2004).
A. Tavrov, Y. Tanaka, T. Shioda, T. Kurokawa, and M. Takeda, Proc. SPIE—Int. Soc. Opt. Eng. 5491, 824 (2004).
A. Tavrov, Y. Kobayashi, Y. Tanaka, T. Shioda, Y. Otani, T. Kurokawa, and M. Takeda, Opt. Lett. 30, 2224 (2005).
A. Tavrov, J. Nishikawa, M. Tamura, L. Abe, K. Yokochi, T. Kurokawa, and M. Takeda, Appl. Opt. 46, 6885 (2007).
J. Nishikawa, N. Murakami, L. Abe, T. Kotani, M. Tamura, K. Yokochi, and T. Kurokawa, Proc. SPIE—Int. Soc. Opt. Eng. 6265, 62 653Q (2006).
P. Baudoz, Y. Rabbia, and J. Gay, Astron. Astrophys., Suppl. Ser. 141, 319 (2000).
M. Francon and S. Mallick, Appl. Opt. 6, 873 (1967).
S. Mallick, Appl. Opt. 6, 1403 (1967).
A. V. Tavrov, Zh. Éksp. Teor. Fiz. 134(6), 1103 (2008) [JETP 107 (6), 942 (2008)].
A. Labeyrie, S. G. Lipson, and P. Nisenson, An Introduction to Optical Stellar Interferometry (Cambridge University Press, Cambridge, United Kingdom, 2006), Chap. 10.4, p. 325.
E. L. Lago and R. de la Fuente, Appl. Opt. 47, 372 (2008).
L. Pueyo, M. G. Littman, J. Kasdin, R. Vanderbei, R. Belikov, and A. Give’on, Proc. SPIE—Int. Soc. Opt. Eng. 5903, 59 030L (2005).
S. B. Shaklan and J. J. Green, Appl. Opt. 45, 5143 (2006).
P. Bordé and W. Traub, C. R. Phys. 8, 349 (2007); http://arxiv.org/PS-cache/arxiv//pdf/0709/0709.3739v1.pdf.
J. Nishikawa, L. Abe, N. Murakami, and T. Kotani, Astron. Astrophys. 489, 1389 (2008).
N. Zubko, N. Baba, S. Morisaki, and N. Murakami, Opt. Express 15, 12 189 (2007).
B. Biller, L. Close, R. Lenzen, W. Brandner, D. McCarthy, E. Nielsen, and M. Hartung, Proc. SPIE—Int. Soc. Opt. Eng. 5490, 389 (2004).
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Original Russian Text © A.V. Tavrov, 2009, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2009, Vol. 135, No. 6, pp. 1109–1124.
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Tavrov, A.V. Development of spatial coherence from an extended source in successive rotational shearing interferometers for achromatic stellar coronagraphy. J. Exp. Theor. Phys. 108, 963–976 (2009). https://doi.org/10.1134/S1063776109060065
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DOI: https://doi.org/10.1134/S1063776109060065