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Fourier Transform Interferometry (FTI) is an appealing Hyperspectral (HS) imaging modality for many applications demanding high spectral resolution, e.g., in fluorescence microscopy. However, the effective resolution of FTI is limited by…

Information Theory · Computer Science 2019-01-31 A. Moshtaghpour , L. Jacques , V. Cambareri , P. Antoine , M. Roblin

Kernel phase interferometry (KPI) is a post-processing technique that treats a conventional telescope as an interferometer by accurately modeling a telescope pupil as an array of virtual subapertures. KPI provides angular resolution within…

Instrumentation and Methods for Astrophysics · Physics 2026-02-10 Chelsea Adelman , Steph Sallum , Matthew De Furio , Josh Eisner

Optical interferometric imaging enables astronomical observation at extremely high angular resolution. The necessary optical information for imaging, such as the optical path differences and visibilities, is easy to extract from fringes…

The far-infrared (FIR) regime is one of the few wavelength ranges where no astronomical data with sub-arcsecond spatial resolution exist. Neither of the medium-term satellite projects like SPICA, Millimetron nor O.S.T. will resolve this…

The Wide Field Imager (WFI) is one of two instruments for the Advanced Telescope for High-ENergy Astrophysics (Athena). In this paper we summarise three of the many key science objectives for the WFI - the formation and growth of…

The Gemini Planet Imager is a high-contrast near-infrared instrument specifically designed to image exoplanets and circumstellar disks over a narrow field of view. We use science data and AO telemetry taken during the first 1.5 yr of the…

In this paper we present the Low Frequency Instrument (LFI), designed and developed as part of the Planck space mission, the ESA program dedicated to precision imaging of the cosmic microwave background (CMB). Planck-LFI will observe the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 M. Bersanelli , N. Mandolesi , R. C. Butler , A. Mennella , F. Villa , B. Aja , E. Artal , E. Artina , C. Baccigalupi , M. Balasini , G. Baldan , A. Banday , P. Bastia , P. Battaglia , T. Bernardino , E. Blackhurst , L. Boschini , C. Burigana , G. Cafagna , B. Cappellini , F. Cavaliere , F. Colombo , G. Crone , F. Cuttaia , O. D'Arcangelo , L. Danese , R. D. Davies , R. J. Davis , L. De Angelis , G. C. De Gasperis , L. De La Fuente , A. De Rosa , G. De Zotti , M. C. Falvella , F. Ferrari , R. Ferretti , L. Figini , S. Fogliani , C. Franceschet , E. Franceschi , T. Gaier , S. Garavaglia , F. Gomez , K. Gorski , A. Gregorio , P. Guzzi , J. M. Herreros , S. R. Hildebrandt , R. Hoyland , N. Hughes , M. Janssen , P. Jukkala , D. Kettle , V. H. Kilpia , M. Laaninen , P. M. Lapolla , C. R. Lawrence , J. P. Leahy , R. Leonardi , P. Leutenegger , S. Levin , P. B. Lilje , S. R. Lowe , D. Lawson P. M. Lubin , D. Maino , M. Malaspina , M. Maris , J. Marti-Canales , E. Martinez-Gonzalez , A. Mediavilla , P. Meinhold , M. Miccolis , G. Morgante , P. Natoli , R. Nesti , L. Pagan , C. Paine , B. Partridge , J. P. Pascual , F. Pasian , D. Pearson , M. Pecora , F. Perrotta , P. Platania , M. Pospieszalski , T. Poutanen , M. Prina , R. Rebolo , N. Roddis , J. A. Rubino-Martin , n M. J. Salmon , M. Sandri , M. Seiffert , R. Silvestri , A. Simonetto , P. Sjoman , G. F. Smoot , C. Sozzi , L. Stringhetti , E. Taddei , J. Tauber , L. Terenzi , M. Tomasi , J. Tuovinen , L. Valenziano , J. Varis , N. Vittorio , L. A. Wade , A. Wilkinson , F. Winder , A. Zacchei , A. Zonca

The Gemini Planet (GPI) imager is an "extreme" adaptive optics system being designed and built for the Gemini Observatory. GPI combines precise and accurate wavefront control, diffraction suppression, and a speckle-suppressing science…

Incoherent Diffraction Imaging - IDI - is a diffraction-based imaging technique that has been recently proposed to exploit the partial coherence of incoherently scattered light to retrieve structural information from the scattering centers.…

Fourier single-pixel imaging (FSI) is a branch of single-pixel imaging techniques. It uses Fourier basis patterns as structured patterns for spatial information acquisition in the Fourier domain. However, the spatial resolution of the image…

Image and Video Processing · Electrical Eng. & Systems 2021-08-06 Ziheng Qiu , Xinyi Guo , Tianao Lu , Pan Qi , Zibang Zhang , Jingang Zhong

SPIFFI (SPectrometer for Infrared Faint Field Imaging) is the integral field spectrograph of the VLT-instrument SINFONI (SINgle Far Object Near-infrared Investigation). SINFONI is the combination of SPIFFI with the ESO adaptive optics…

Half of the energy ever emitted by stars and accreting objects comes to us in the FIR waveband and has yet to be properly explored. We propose a powerful Far-InfraRed Interferometer mission, FIRI, to carry out high-resolution imaging…

Astrophysics · Physics 2009-11-13 Frank Helmich , Rob Ivison

The characterization of extrasolar earth-like atmospheres for biosignatures remains one of the most compelling and elusive challenges in astronomy. Coronagraphy, nulling interferometry and free-flying occulters have been advanced as…

Instrumentation and Methods for Astrophysics · Physics 2011-04-22 James P. Lloyd

The Large Binocular Telescope Interferometer (LBTI) is a strategic instrument of the LBT designed for high-sensitivity, high-contrast, and high-resolution infrared (1.5-13 $\mu$m) imaging of nearby planetary systems. To carry out a wide…

In an effort to transcend the limitations of differential imaging of exoplanets in the era of extremely large telescopes (ELTs), the first paper in this series established a rigorous, fully polarimetric framework for determining the science…

Instrumentation and Methods for Astrophysics · Physics 2016-02-18 Richard A. Frazin

We are developing the super broad band interferometer by applying the Fourier Transform Spectrometer(FTS) to aperture synthesis system in mm and sub-mm bands. We have constructed a compact system based on the Martin and Puplett type Fourier…

Astrophysics · Physics 2009-11-10 Izumi S. Ohta , Makoto Hattori , Hiroshi Matsuo

The Gemini Planet Imager (GPI) is an instrument designed to directly image planets and circumstellar disks from 0.9 to 2.5 microns (the $YJHK$ infrared bands) using high contrast adaptive optics with a lenslet-based integral field…

The Big Fringe Telescope (BFT) is a facility concept under development for a next-generation, kilometer-scale optical interferometer. Observations over the past two decades from routinely operational facilities such as CHARA and VLTI have…

Instrumentation and Methods for Astrophysics · Physics 2024-08-05 Gerard T. van Belle , Anders M. Jorgensen

In a few years, the second generation instruments of the Very Large Telescope Interferometer (VLTI) will routinely provide observations with 4 to 6 telescopes simultaneously. To reach their ultimate performance, they will need a fringe…

We present the characterization and calibration of the Slow-Scan observation mode of the Far-Infrared Surveyor (FIS) onboard the AKARI satellite. The FIS, one of the two focal-plane instruments on AKARI, has four photometric bands between…