Results 41 to 50 of about 3,110,224 (422)

Ultralow and Selective Infrared Emission from MXenes [PDF]

open access: yesarXiv, 2021
Low and selective infrared emission materials are necessary for next generation thermal technologies, including passive heating, infrared identification, and photothermal conversion. Here, we report on the intrinsic infrared radiation properties of three MXenes: Ti3C2Tx, Ti3CNTx, and V4C3Tx.
arxiv  

Ultra-sensitive polarization-resolved black phosphorus homojunction photodetector defined by ferroelectric domains

open access: yesNature Communications, 2022
Integrated polarization-sensitive photodetectors are important for sensing applications and optical communication. Here, the authors report the realization of 2D black phosphorus homojunction photodetectors defined by ferroelectric substrates, showing ...
Shuaiqin Wu   +17 more
doaj   +1 more source

Velocity Estimation for Space Infrared Dim Targets Based on Multi-Satellite Observation and Robust Locally Weighted Regression

open access: yesRemote Sensing, 2023
Velocity estimation of space moving targets is a key part of space situational awareness. However, most of the existing methods do not consider the satellite observation process, and the performance mainly depends on the preset target motion state, which
Shenghao Zhang   +3 more
doaj   +1 more source

CMORPH: A Method that Produces Global Precipitation Estimates from Passive Microwave and Infrared Data at High Spatial and Temporal Resolution

open access: yes, 2004
A new technique is presented in which half-hourly global precipitation estimates derived from passive microwave satellite scans are propagated by motion vectors derived from geostationary satellite infrared data.
R. Joyce, J. Janowiak, P. Arkin, P. Xie
semanticscholar   +1 more source

Near-Infrared Spectra of Ultraluminous Infrared Galaxies [PDF]

open access: yesThe Astrophysical Journal, 1999
Near infrared spectra with resolution R ~ 1100 in the rest wavelength range 1.8-2.2 microns have been obtained for a complete sample of 33 ultraluminous infrared galaxies. Of the 33 objects observed, 2 show evidence of a central AGN through either a broad Paschen-alpha line or emission in the 1.963 micron fine structure of [Si VI].
Keith Matthews   +5 more
openaire   +4 more sources

Fast reversible laser-induced crystallization of Sb-rich Zn-Sb-Se phase change material with excellent stability

open access: yesAIP Advances, 2015
We present a new reversible phase-change medium Sb-rich Zn-Sb-Se film, which possesses a large difference in both optical and electrical constant. The doped-ZnSb, sub-formed Zn-Se, and exhausted Sb-Se3/2 co-influence the physical properties.
Yimin Chen   +7 more
doaj   +1 more source

Transient Study of Femtosecond Laser–Induced Ge2Sb2Te5 Phase Change Film Morphology

open access: yesMicromachines, 2021
Femtosecond laser-induced crystallization and ablation of Ge2Sb2Te5 (GST) phase change film is investigated by reflectivity pump-probing technology. Below the ablation threshold, the face-centered cubic structure (FCC) state in the central area can be ...
Wenju Zhou   +6 more
doaj   +1 more source

Follow-Up Near-infrared Spectroscopy of Ultraluminous Infrared Galaxies observed by ISO [PDF]

open access: yes, 2005
We present low resolution near-infrared spectroscopy of an unbiased sample of 24 ultraluminous infrared galaxies (ULIRGs), selected from samples previously observed spectroscopically in the mid-infrared with the Infrared Space Observatory (ISO). Qualitatively, the near-infrared spectra resemble those of starbursts.
arxiv   +1 more source

Infrared analysis of propagators and vertices of Yang--Mills theory in Landau and Coulomb gauge [PDF]

open access: yes, 2006
The infrared behaviour of gluon and ghost propagators, ghost-gluon vertex and three-gluon vertex is investigated for both the covariant Landau and the non-covariant Coulomb gauge.
H. Reinhardt   +3 more
core   +2 more sources

Dip-Coating Self-Assembly Fabrication and Polarization Sensitive Photoresponse of Aligned Single-Walled Carbon Nanotube Film

open access: yesSensors, 2022
It is challenging to obtain wafer-scaled aligned films for completely exploiting the promising properties of semiconducting single-walled carbon nanotubes (s-SWCNTs).
Jiazhen Zhang   +12 more
doaj   +1 more source

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