Open AccessA Tunable Echelle Imager
Author(s) -
I. K. Baldry,
J. BlandHawthorn
Publication year - 2000
Publication title -
publications of the astronomical society of the pacific
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.294
H-Index - 172
eISSN - 1538-3873
pISSN - 0004-6280
DOI - 10.1086/316604
Subject(s) - grism , optics , physics , interferometry , grating , field of view , wavelength , calibration , multiplex , astronomical interferometer , ghosting , hyperspectral imaging , perpendicular , remote sensing , diffraction grating , microwave imaging , imaging technique
We describe and evaluate a new instrument design called a Tunable EchelleImager (TEI). In this instrument, the output from an imaging Fabry-Perotinterferometer is cross-dispersed by a grism in one direction and dispersed byan echelle grating in the perpendicular direction. This forms a mosaic ofdifferent narrow-band images of the same field on a detector. It offers adistinct wavelength multiplex advantage over a traditional imaging Fabry-Perotdevice. Potential applications of the TEI include spectrophotometric imaging andOH-suppressed imaging by rejection.Comment: 11 pages, 12 figures, accepted by PAS
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