Special Section on Advances in Infrared Remote Sensing and Instrumentation

Single-element nulling interferometer for extra-solar planet detection

[+] Author Affiliations
José A. Ferrari

Universidad de la República, Instituto de Física, Facultad de Ingeniería, J. Herrera y Reissig 565, Montevideo, Uruguay

Jorge L. Flores

University of Guadalajara, Electronic Engineering Department, Av. Revolución No. 1500, CP. 44430 Guadalajara, Jalisco, Mexico

Gonzalo Paez

Centro de Investigaciones en Optica, Apartado Postal 1-948, 37000 León, Guanajuato, Mexico

Erna Frins

Universidad de la República, Instituto de Física, Facultad de Ingeniería, J. Herrera y Reissig 565, Montevideo, Uruguay

J. Appl. Remote Sens. 8(1), 084996 (Feb 21, 2014). doi:10.1117/1.JRS.8.084996
History: Received November 15, 2013; Revised January 22, 2014; Accepted January 24, 2014
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Abstract.  Nulling interferometry is a technique for darkening the field generated by a star relative to its surroundings by destructive interference. We describe a nulling interferometer incorporating a single beam-splitter (BS) cube. The device resembles a two-arm interferometer in which the arms are together in one collimated beam, and the two beam halves interfere with the help of the BS cube. By introducing an extra π/2-phase difference between the two beam halves, it is possible to achieve destructive interference of the star with itself, while the off-axis image of the planet remains unchanged. An experimental setup is constructed to demonstrate the nulling features of this interferometer. A star and a planet solar system are simulated to prove its performance.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

José A. Ferrari ; Jorge L. Flores ; Gonzalo Paez and Erna Frins
"Single-element nulling interferometer for extra-solar planet detection", J. Appl. Remote Sens. 8(1), 084996 (Feb 21, 2014). ; http://dx.doi.org/10.1117/1.JRS.8.084996


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