Retrieval of stratospheric aerosol size and composition information from solar infrared transmission spectra

2003 ◽  
Vol 42 (12) ◽  
pp. 2140 ◽  
Author(s):  
Helen M. Steele ◽  
Annmarie Eldering ◽  
Bhaswar Sen ◽  
Geoffrey C. Toon ◽  
Franklin P. Mills ◽  
...  
Keyword(s):  
Stratospheric Aerosol ◽  
Transmission Spectra ◽  
Infrared Transmission

Deuterium Treatment and Infrared Transmission Spectra of Fused Silica

1981 ◽  
Vol 64 (12) ◽  
pp. C-178-C-180 ◽  
Author(s):  
Binod Kumar ◽  
N. Fernelius ◽  
J. A. Detrio
Keyword(s):  
Fused Silica ◽  
Transmission Spectra ◽  
Infrared Transmission

Transport properties of hydrogenated and chlorinated amorphous silicon Correlation with infrared transmission spectra

1984 ◽  
Vol 50 (4) ◽  
pp. 493-504 ◽  
Author(s):  
S. Al Dallal ◽  
S. Kalem ◽  
J. Bourneix ◽  
J. Chevallier ◽  
M. Toulemonde
Keyword(s):  
Amorphous Silicon ◽  
Transport Properties ◽  
Transmission Spectra ◽  
Infrared Transmission

Retrieval of trace gases from aerosol-influenced infrared transmission spectra observed by low-spectral-resolution Fourier-transform spectrometers

2005 ◽  
Vol 44 (3) ◽  
pp. 455 ◽  
Author(s):  
Nobuyuki Uemura ◽  
Satoshi Kuriki ◽  
Koji Nobuta ◽  
Tatsuya Yokota ◽  
Hideaki Nakajima ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Spectral Resolution ◽  
Trace Gases ◽  
Transmission Spectra ◽  
Infrared Transmission

scholarly journals Localized surface plasmons in structures with linear Au nanoantennas on a SiO2/Si surface

2016 ◽  
Vol 7 ◽  
pp. 1519-1526 ◽  
Author(s):  
Ilya A Milekhin ◽  
Sergei A Kuznetsov ◽  
Ekaterina E Rodyakina ◽  
Alexander G Milekhin ◽  
Alexander V Latyshev ◽  
...  
Keyword(s):  
Penetration Depth ◽  
Surface Plasmons ◽  
Infrared Absorption ◽  
Transmission Spectra ◽  
Localized Surface Plasmons ◽  
Optical Phonons ◽  
Infrared Transmission ◽  
Phonon Modes ◽  
Electromagnetic Simulations

The study of infrared absorption by linear gold nanoantennas fabricated on a Si surface with underlying SiO2 layers of various thicknesses allowed the penetration depth of localized surface plasmons into SiO2 to be determined. The value of the penetration depth derived experimentally (20 ± 10 nm) corresponds to that obtained from electromagnetic simulations (12.9–30.0 nm). Coupling between plasmonic excitations of gold nanoantennas and optical phonons in SiO2 leads to the appearance of new plasmon–phonon modes observed in the infrared transmission spectra the frequencies of which are well predicted by the simulations.

scholarly journals Properties of sub-Neptune atmospheres: TOI-270 system

2020 ◽  
Vol 495 (1) ◽  
pp. 962-970
Author(s):  
J Chouqar ◽  
Z Benkhaldoun ◽  
A Jabiri ◽  
J Lustig-Yaeger ◽  
A Soubkiou ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Signal To Noise Ratio ◽  
Spectral Features ◽  
Transmission Spectra ◽  
Infrared Transmission ◽  
Signal To Noise ◽  
Space Telescope ◽  
Molecular Features ◽  
James Webb Space Telescope ◽  
Mean Molecular Weight

ABSTRACT We investigate the potential for the James Webb Space Telescope (JWST) to detect and characterize the atmospheres of the sub-Neptunian exoplanets in the TOI-270 system. Sub-Neptunes are considered more likely to be water worlds than gas dwarfs. We model their atmospheres using three atmospheric compositions – two examples of hydrogen-dominated atmospheres and a water-dominated atmosphere. We then simulate the infrared transmission spectra of these atmospheres for JWST instrument modes optimized for transit observation of exoplanet atmospheres: NIRISS, NIRSpec, and MIRI. We then predict the observability of each exoplanet’s atmosphere. TOI-270c and d are excellent targets for detecting atmospheres with JWST transmission spectroscopy, requiring only 1 transit observation with NIRISS, NIRSpec, and MIRI; higher signal-to-noise ratio can be obtained for a clear H-rich atmosphere. Fewer than three transits with NIRISS and NIRSpec may be enough to reveal molecular features. Water-dominated atmospheres require more transits. Water spectral features in water-dominated atmospheres may be detectable with NIRISS in two or three transits. We find that the detection of spectral features in a cloudy, H-rich atmosphere does not require integrations as long as those required for the water-dominated atmosphere, which is consistent with the differences in atmospheric mean molecular weight. TOI-270c and d could be prime targets for JWST transit observations of sub-Neptune atmospheres. These results provide useful predictions for observers who may propose to use JWST to detect and characterize the TOI-270 planet atmospheres.

Infrared transmission spectra of hot ammonia in the 4800–9000 cm−1 region

2020 ◽  
Vol 246 ◽  
pp. 106911 ◽  
Author(s):  
Christopher A. Beale ◽  
Andy Wong ◽  
Peter Bernath
Keyword(s):  
Transmission Spectra ◽  
Infrared Transmission

Linewidth of phonon modes in infrared transmission spectra of GaAs/AlAs superlattices

1995 ◽  
Vol 77 (7) ◽  
pp. 3566-3568 ◽  
Author(s):  
M. Giehler ◽  
E. Jahne ◽  
K. Ploog
Keyword(s):  
Transmission Spectra ◽  
Infrared Transmission ◽  
Phonon Modes

Descending Infrared Transmission Spectra of CdZnTe Substrates Due to Surface Roughness

2019 ◽  
Vol 48 (10) ◽  
pp. 6152-6158 ◽  
Author(s):  
E. Selvig ◽  
K. O. Kongshaug ◽  
R. Haakenaasen ◽  
T. Lorentzen ◽  
T. Brudevoll
Keyword(s):  
Surface Roughness ◽  
Transmission Spectra ◽  
Infrared Transmission ◽  
Cdznte Substrates
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