The authors study the use of thin ( 230 nm) tantalum (Ta) layers on silicon (Si) as a low emissivity (high reflectivity) coating for high-temperature Si devices. Such coatings are critical to reduce parasitic radiation loss, which is one of the dominant loss mechanisms at high temperatures (above 700 C). The key factors to achieve such a coating are low emissivity in the near infrared and super...

This paper describes a simplified method of mapping the ur-ban environment surface to obtain map thermal anomalies distribu-tion and study structure urban heat island. Those maps allow evaluating or planning microclimate optimization methods studying effect land cover type on site temperature. The article discusses processing five satellite images for summer winter from 2002 2019. We propose si...

We have combined infrared data with HI , H2 and HII surveys in order to spatially decompose the observed dust emission into components associated with different phases of the gas. An inversion technique is applied. For the decomposition, we use the IRAS 60 and 100 µm bands, the DIRBE 140 and 240 µm bands, as well as Archeops 850 and 2096 µm wavelengths. In addition, we apply the decomposition t...

High reflective materials in the microwave region play a very important role in the realization of antenna reflectors for a broad range of applications, including radiometry. These reflectors have a characteristic emissivity which needs to be characterized accurately in order to perform a correct radiometric calibration of the instrument. Such a characterization can be performed by using open r...

On several days in 2000 & 2001 the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) on the Terra satellite obtained data over the Jornada Experimental Range test site along the Rio Grande river and the White Sand National Monument in New Mexico. ASTER has 14 channels from the visible (VNIR) through the thermal infrared (TIR) with 15 m resolution in the VNIR and 90 m in the...

Soft X-Ray (SXR) emission in the range 0.1 keV – 20 keV is widely used to obtain valuable information on tokamak plasma physics, such as particle transport, magnetic configuration or magnetohydrodynamic (MHD) activity. In particular, 2D tomography is the usual plasma diagnostic to access the local SXR emissivity. The tomographic inversion is traditionally performed from line-integrated measurem...

This work intercompared two Bi-directional Reflectance Distribution Function (BRDF) models, the modified Minnaert's model and the RossThick-LiSparse-R model, in the estimation of the directional emissivity in Middle Infra-Red (MIR) channel from the data acquired by the Spinning Enhanced Visible and Infra-Red Imager (SEVIRI) onboard the first Meteosat Second Generation (MSG1). The bi-directional...

On May 9, 2000 the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) on the Terra satellite obtained data over the Jornada Experimental Range test site along the Rio Grande river and the White Sand National Monument in New Mexico. ASTER has 14 channels from the visible (VNIR) through the thermal infrared (TIR) with 15 m resolution in the VNIR and 90 m in the TIR. The overpa...

Many devices are used to realize non-contact temperature measurements. Whenever the body to be controlled behaves as a black body, all the devices inferring the true temperature from the body radiation are accurate and reliable. On the other hand, when it exhibits a behavior different from the black body, emissivity compensations need to be done. In case of a known emissivity, the spectral syst...

We have derived a mean profile of the 13 μm emission feature from 11 ISO spectra of oxygen-rich AGB stars and present an overview of the mineral species that could account for it. Our results can be summarized as follows: i) Spherical particles of α-Al2O3 (corundum) have a sharp emissivity maximum peaking at 12.7 μm. The difference of 0.3 μm in the peak position compared to the mean observed ba...