Results 21 to 30 of about 148,659 (287)

Upconversion time-stretch infrared spectroscopy

Light: Science & Applications, 2023
We develop upconversion time-stretch infrared spectroscopy, which enables high-speed and high-resolution broadband mid-infrared spectroscopy with over 1000 spectral elements at a rate of more than 10 MSpectra s−1.
Kazuki Hashimoto, Takuma Nakamura, Takahiro Kageyama, Venkata Ramaiah Badarla, Hiroyuki Shimada, Ryoich Horisaki, Takuro Ideguchi   +6 more
doaj   +1 more source

Research Progress in the Application of Spectroscopic Technology in the Traceability of Food Origin

Shipin gongye ke-ji, 2023
The technology of food geographical origin traceability is essential for the country to effectively promote the implementation of food origin traceability and protect famous and unique products.
Wenyan LIU, Zhongxin YAN, Lizhuang HAO, Haiyue WU, Yang XIANG   +4 more
doaj   +1 more source

Metasurface-enhanced mid-infrared spectroscopy in the liquid phase. [PDF]

Chem Sci, 2022
A novel surface-enhanced infrared absorption (SEIRA) spectroscopy method exploits the resonance of a dielectric metasurface to provide strong field enhancement at a microscale depth, making it suitable for analysis of dilute liquid samples.
Kharratian S, Conteduca D, Procacci B, Shaw DJ, Hunt NT, Krauss TF.   +5 more
europepmc   +3 more sources

Mid-infrared near-field spectroscopy

Optics Express, 2009
We demonstrate continuous infrared spectra from 20 nm sample spots, by combining dispersive Fourier-transform infrared spectroscopy (FTIR) with scattering near-field microscopy (s-SNOM). With the "apertureless" tip of a standard AFM cantilever in one arm of a Michelson interferometer the spectra arise simultaneously in amplitude and phase.
Amarie, S., Ganz, T., Keilmann, F.
openaire   +3 more sources

Monitoring the ripening attributes of Turkish white cheese using miniaturized vibrational spectrometers

Journal of Dairy Science, 2022
: Monitoring the ripening process by prevalent analytic methods is laborious, expensive, and time consuming. Our objective was to develop a rapid and simple method based on vibrational spectroscopic techniques to understand the biochemical changes ...
Hulya Yaman, Didem P. Aykas, Rafael Jiménez-Flores, Luis E. Rodriguez-Saona   +3 more
doaj   +1 more source

Benchmarking the Use of Heavily-Doped Ge Against Noble Metals for Plasmonics and Sensing in the Mid-Infrared [PDF]

, 2016
Despite the recent introduction of heavily-doped semiconductors for mid-infrared plasmonics, it still remains an open point whether such materials can compete with noble metals.
Baldassarre, Leonetta, Biagioni, Paolo, Frigerio, Jacopo, Gallacher, Kevin, Giliberti, Valeria, Isella, Giovanni, Ortolani, Michele, Paul, Douglas J., Pellegrini, Giovanni   +8 more
core   +1 more source

Mid- to Far-Infrared spectroscopy of Sharpless 171 [PDF]

, 2003
We have collected one-dimensional raster-scan observations of the active star-forming region Sharpless 171 (S171), a typical HII region-molecular cloud complex, with the three spectrometers (LWS, SWS, and PHT-S) on board ISO.
Baluteau, Boreiko, Boreiko, Cardelli, Carral, Cartledge, Caux, Chan, Clegg, de Graauw, Draine, Felli, Fitzpatrick, Fitzpatrick, Giannini, H. Shibai, Haas, Habing, Harten, Hollenbach, Hollenbach, Holweger, Jones, Jones, Jones, Kaufman, Keenan, Kessler, Kraemer, Lemke, Liseau, MacConnell, Martín-Hernández, Mathis, Mizutani, Mizutani, Moorwood, Morisset, Morton, Poglitsch, Rossano, Rubin, Savage, Sembach, Sofia, Swinyard, T. Onaka, Tielens, Tielens, Vastel, Watson, Wolfire, Wright, Y. Doi, Y. Okada, Yang   +55 more
core   +1 more source

Searching water megamasers by using mid-infrared spectroscopy (I): Possible mid-infrared indicators [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Water megamasers at 22 GHz with a gas disc configuration in galaxies provide the most precise measurements of supermassive black hole masses, as well as independent constraints on the Hubble constant in the nearby universe. The existence of other maser types, such as jet or outflow masers, represents another tracer for AGN ...
Man I Lam, C Jakob Walcher, Feng Gao, Ming Yang, Huan Li, Lei Hao   +5 more
openaire   +3 more sources

Metodologia analítica para quantificar o teor de biodiesel na mistura biodiesel: diesel utilizando espectroscopia na região do infravermelho Determination of biodiesel percentage in biodiesel: diesel mixtures using mid-infrared spectroscopy

Química Nova, 2008
Considered the best substitute for diesel, biodiesel can be blended with diesel in any ratio, bringing lots of environmental, economic and social advantages.
Lílian Lefol Nani Guarieiro, Angelo C. Pinto, Paula Fernandes de Aguiar, Núbia Moura Ribeiro   +3 more
doaj   +1 more source

Mid-infrared spectroscopy on a fiber tip for molecular monitoring. [PDF]

Opt Eng
Mid-infrared (mid-IR) fiber sensors offer highly specific and sensitive detection and analysis of various chemical species due to many molecular vibrations and fundamental absorption bands in this range. In this paper, we present a compact transflection-based mid-IR fiber probe, designed to be potentially suitable for in vivo sensing, with an optical ...
Lee TA, Xiao Z, Burghoff DP, Hutter T.
europepmc   +4 more sources