Results 171 to 180 of about 4,718 (209)

Telescopes team up to probe distant worlds. [PDF]

Proc Natl Acad Sci U S A
Mann A.
europepmc   +1 more source

Martian ionospheric response during the may 2024 solar superstorm. [PDF]

Nat Commun
Parrott J, Sánchez-Cano B, Svedhem H, Witasse O, Meggi D, Wilson C, Cardesín-Moinelo A, Müller-Wodarg I.   +7 more
europepmc   +1 more source

Unveiling Raphael's Christ Blessing: Chemical Analysis Reveals Distinctive Underdrawing Techniques and a Rare Early Use of Egyptian Blue in Renaissance Art. [PDF]

ACS Omega
Pozzi F, Ricci C, Morlotti M, Demonte D, Castelli L, Ruberto C, Cucci C, Picollo M, Stefani L, Gargano M.   +9 more
europepmc   +1 more source

Highly sensitive hierarchically structured Si-based UV sensor-photodetectors via optimized ZnO-Al₂O₃ nanocomposite architectures. [PDF]

Sci Rep
Abdelhamid Shahat M, Khamees AS, Ghitas A, Ezzat HA.   +3 more
europepmc   +1 more source

Room temperature operated short-wave infrared phototransistor optimized via MXene-based metamaterial absorber structure. [PDF]

Sci Rep
Emami S, Raeyani D, Shirmohammadi S, Asgari A.   +3 more
europepmc   +1 more source

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Optimizing photonic ring-resonator filters for OH-suppressed near-infrared astronomy

Applied Optics, 2021
Near-infrared wavelength observations are crucial for understanding numerous fields of astrophysics, such as supernova cosmology and positronium annihilation detection. However, current ground-based observations suffer from an enormous background due to OH emission in the upper atmosphere.
Simon Ellis, David Underwood
exaly   +3 more sources

DMDs for multi-object near-infrared spectrographs in astronomy

Emerging Digital Micromirror Device Based Systems and Applications X, 2018
The Digital Micromirror Device (DMD), typically used in projection screen technology, has utility in instrumentation for astronomy as a digitally programmable slit in a spectrograph. When placed at an imaging focal plane the device can be used to selectively direct light from astronomical targets into the optical path of a spectrograph, while at the ...
Massimo Robberto, Stephen A Smee, Robert H Barkhouser   +2 more
exaly   +2 more sources

First experiences with a solid ZnSe grism for near infrared astronomy

Experimental Astronomy, 1994
We present engineering data and initial astronomical observations with the solid ZnSe grisms mounted in the MPIA MAGIC infrared camera.
T. M. Herbst, J. T. Rayner
exaly   +2 more sources

Microwave kinetic inductance detectors for visible to near infrared astronomy (Conference Presentation)

High Energy, Optical, and Infrared Detectors for Astronomy VIII, 2018
Mazin Lab at UCSB is developing MKID instrument for astronomy at near infrared, optical and ultraviolet wavelength. We use MIKDs as single photon detectors by measuring the arrival time of incoming photons with an accuracy of a few microseconds and with a relatively high energy resolution (R~10 at 1um).
Ben Mazin, Nicholas Zobrist
exaly   +2 more sources

LINC-NIRVANA for the large binocular telescope: setting up the world’s largest near infrared binoculars for astronomy

Optical Engineering, 2013
LINC-NIRVANA (LN) is the near-infrared, Fizeau-type imaging interferometer for the large binocular telescope (LBT) on Mt. Graham, Arizona (elevation of 3267 m). The instrument is currently being built by a consortium of German and Italian institutes under the leadership of the Max Planck Institute for Astronomy in Heidelberg, Germany.
Italo Foppiani, Fabrizio Vitali, Gianluca Li Causi   +2 more
exaly   +2 more sources