Results 261 to 270 of about 148,659 (287)
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Cavity ringdown spectroscopy of thin films in the mid-infrared

Applied Optics, 2002
To demonstrate the potential of the cavity ringdown technique in mid-infrared spectroscopy of thin film samples, we measured absorption losses in a C60 film on a BaF2 substrate using a tunable optical parametric amplifier source. With a Brewster angle sample geometry, we achieved a fractional loss sensitivity as small as 1.3 x 10(-7) with 1.5 cm(-1 ...
George A, Marcus, H Alan, Schwettman
openaire   +2 more sources

Spectroscopy on Vertical Microcavities for the Mid-Infrared

physica status solidi (a), 2001
Mid-infrared microcavities from IV-VI semiconductors (lead salts) are investigated by infrared transmission measurements. Epitaxial Pb 1-x Eu x Te/EuTe multilayers with an refractive index contrast of more than 80% are used as Bragg interference mirrors with a very large mirror stop band width.
W. Heiss, T. Schwarzl, G. Springholz
openaire   +1 more source

Characterization of Soils Using Photoacoustic Mid-Infrared Spectroscopy

Applied Spectroscopy, 2007
This study investigates the use of photoacoustic spectroscopy (PAS) for rapid soil analysis. Photoacoustic spectroscopy requires very minimal sample preparation (air-drying), which is a major advantage compared to the more traditional transmittance technique, which requires time-consuming preparation of pellets.
Du, Changwen   +2 more
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Mid-Infrared Laser Applications in Spectroscopy

2007
The vast majority of gaseous chemical substances exhibit fundamental vibrational absorption bands in the mid-infrared spectral region (≈ 2–25 µm), and the absorption of light by these fundamental bands provides a nearly universal means for their detection.
Frank K. Tittel   +2 more
openaire   +1 more source

Mid-infrared spectroscopy for characterization of Baltic amber (succinite)

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018
Natural Baltic amber (succinite) is the most appreciated fossil resin of the rich cultural traditions dating back to prehistoric times. Its unequivocal identification is extremely important in many branches of science and trades including archeology, paleontology, chemistry and finally mineralogical and gemological societies.
openaire   +2 more sources

Sensitivity-Enhanced Fourier Transform Mid-Infrared Spectroscopy Using a Supercontinuum Laser Source

Applied Spectroscopy, 2020
Ivan Zorin, Jakob Kilgus, Bernhard Lendl
exaly  

The Performance of Visible, Near-, and Mid-Infrared Reflectance Spectroscopy for Prediction of Soil Physical, Chemical, and Biological Properties

Applied Spectroscopy Reviews, 2014
José M Soriano-Disla   +2 more
exaly  

Applications of mid-infrared spectroscopy in the clinical laboratory setting

Critical Reviews in Clinical Laboratory Sciences, 2018
Sander De Bruyne   +2 more
exaly  

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