Výsledky vyhledávání - "Broquin, J. E."

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Technology challenges for space interferometry: the option of mid-infrared integrated optics

Autor: Labadie, L., Kern, P., Labeye, P., Coarer, E. Le, Vigreux-Bercovici, C., Pradel, A., Broquin, J. -E., Kirschner, V.

Publikováno v: Adv.Space Res.41:1975-1982,2008

Nulling interferometry is a technique providing high angular resolution which is the core of the space missions Darwin and the Terrestrail Planet Finder. The first objective is to reach a deep degree of starlight cancelation in the range 6 -- 20 micr

Externí odkaz: http://arxiv.org/abs/0707.1701

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Transmission measurement at 10.6 microns of Te2As3Se5 rib-waveguides on As2S3 substrate

Autor: Vigreux-Bercovici, C., Bonhomme, E., Pradel, A., Broquin, J. -E., Labadie, L., Kern, P.

Publikováno v: Appl. Phys. Lett. 90, 011110 (2007)

The feasibility of chalcogenide rib waveguides working at lambda = 10.6 microns has been demonstrated. The waveguides comprised a several microns thick Te2As3Se5 film deposited by thermal evaporation on a polished As2S3 glass substrate and further et

Externí odkaz: http://arxiv.org/abs/0705.0499

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Mid-infrared laser light nulling experiment using single-mode conductive waveguides

Autor: Labadie, L., Coarer, E. Le, Maurand, R., Labeye, P., Kern, P., Arezki, B., Broquin, J. -E.

Aims: In the context of space interferometry missions devoted to the search of exo-Earths, this paper investigates the capabilities of new single mode conductive waveguides at providing modal filtering in an infrared and monochromatic nulling experim

Externí odkaz: http://arxiv.org/abs/0705.0146

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Modal Filtering for Nulling Interferometry-First Single-Mode Conductive Waveguides in the Mid-Infrared

Autor: Labadie, L., Labeye, P., Kern, P., Schanen, I., Arezki, B., Broquin, J. -E.

This paper presents the work achieved for the manufacturing and characterization of first single-mode waveguides to be used as modal filters for nulling interferometry in the mid-infrared range [4-20 um]. As very high dynamic range is mandatory for d

Externí odkaz: http://arxiv.org/abs/astro-ph/0511298

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