BIGRE: a new double microlens array for the integral field spectrograph of SPHERE

被引：4

作者：

Giro, E. ^{[1
]}

Claudi, R. U. ^{[1
]}

Antichi, J. ^{[1
]}

Bruno, P. ^{[2
]}

Cascone, E. ^{[3
]}

De Caprio, V. ^{[4
]}

Desidera, S. ^{[1
]}

Gratton, R. G. ^{[1
]}

Mesa, D. ^{[1
]}

Scuderi, S. ^{[2
]}

Turatto, M.

Beuzit, J. L. ^{[5
]}

Dohlen, K. ^{[6
]}

Puget, P. ^{[5
]}

机构：

[1] INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy

[2] INAF Osserva Astrofis Catania, I-95123 Catania, Italy

[3] INAF Osservatorio Astron Capodimonte, I-80131 Naples, Italy

[4] INAF IASF Sez Milano, I-20133 Milan, Italy

[5] Lab Astrophys Observ Grenoble, F-38400 St Martin Dheres, France

[6] Lab Astrophys Marseille, F-13376 Marseille 12, France

来源：

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY II, PTS 1-4 | 2008年 / 7014卷

关键词：

lenslet arrays; integral field spectroscopy; exoplanet search;

D O I：

10.1117/12.789354

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

IFS is the Integral Field Spectrograph for SPHERE, a 2nd generation instrument for VLT devoted to the search of exoplanets. To achieve the performances required for the IFS a new device sampling the focal plane has been designed, prototyped and tested in laboratory. This device named BIGRE consists of a system made of two microlens arrays with different focal lengths and thickness equal to the sum of them and precisely aligned each other. Moreover a mask has been deposited on the first array to produce a field stop for each lenslet. Laboratory tests confirmed that specifications and properties of the prototype are met by state of the art on optics microlens manufacturing. To characterize the device, a simulator of IFS has been built in laboratory and the BIGRE properties have been tested in real working conditions, showing that the design of the double array fulfills IFS requirements.

引用

页数：12

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