Results 51 to 60 of about 840,200 (258)
Time-resolved mid-infrared dual-comb spectroscopy [PDF]
Sci Rep 9, 17247 (2019), 2019 Dual-comb spectroscopy can provide broad spectral bandwidth and high spectral resolution in a short acquisition time, enabling time-resolved measurements. Specifically, spectroscopy in the mid-infrared wavelength range is of particular interest, since most of the molecules have their strongest rotational-vibrational transitions in this "fingerprint ...
arxiv +1 more source
Follow-Up Near-infrared Spectroscopy of Ultraluminous Infrared Galaxies observed by ISO [PDF]
, 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 spectroscopy of proteins
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2007 This review discusses the application of infrared spectroscopy to the study of proteins. The focus is on the mid-infrared spectral region and the study of protein reactions by reaction-induced infrared difference spectroscopy.
openaire +2 more sources
The Astrophysical Journal LettersThe recent discovery of “ultrahot” ( P < 1 day) Neptunes has come as a surprise: some of these planets have managed to retain gaseous envelopes despite being close enough to their host stars to trigger strong photoevaporation and/or Roche lobe overflow ...
Shreyas Vissapragada +18 more
doaj +1 more source
, 2014 Near-field infrared spectroscopy by elastic scattering of light from a probe tip resolves optical contrasts in materials at dramatically sub-wavelength scales across a broad energy range, with the demonstrated capacity for chemical identification at the ...
Basov, D. N. +8 more
core +1 more source
Mid-infrared feed-forward dual-comb spectroscopy at 3 $μ$m [PDF]
Proceedings of the National Academy of Sciences of the United
States of America 116, 3454-3459 (2019), 2018 Mid-infrared high-resolution spectroscopy has proven an invaluable tool for the study of the structure and dynamics of molecules in the gas phase. The advent of frequency combs advances the frontiers of precise molecular spectroscopy. Here we demonstrate, in the important 3-{\mu}m spectral region of the fundamental CH stretch in molecules, dual-comb ...
arxiv +1 more source
Single-defect spectroscopy in the shortwave infrared
Nature Communications, 2019 Chemical defects endow materials with unique properties but their investigation is challenging due to their small footprint. Here the authors develop a high throughput shortwave infrared spectroscopy method enabling spectral identification and ...
Xiaojian Wu +3 more
doaj +1 more source
AKARI IRC 2.5-5 um Spectroscopy of Infrared Galaxies over a Wide Luminosity Range [PDF]
, 2014 We present the result of a systematic infrared 2.5-5 um spectroscopic study of 22 nearby infrared galaxies over a wide infrared luminosity range (10 < log(L_IR / Lsun) < 13) obtained from AKARI Infrared Camera (IRC). The unique band of the AKARI IRC spectroscopy enables us to access both the 3.3 um polycyclic aromatic hydrocarbon (PAH) emission feature
arxiv +1 more source
Infrared spectroscopy - alternative instrumental tool for control of bioethanol production.
Kvasný průmysl, 2009 We investigated the possibility of application of FT-IR (Fourier transformed infrared spectroscopy) and FT-NIR (Fourier transformed near infrared spectroscopy) for analysis of mash parameters.
Ladislav TENKL +3 more
doaj +1 more source
Near-infrared and Mid-infrared Spectroscopy with the Infrared Camera (IRC) for AKARI
, 2007 The Infrared Camera (IRC) is one of the two instruments on board the AKARI satellite. In addition to deep imaging from 1.8-26.5um for the pointed observation mode of the AKARI, it has a spectroscopic capability in its spectral range.
Cohen, Martin +24 more
core +1 more source