Relevant bibliographies by topics / IR/THz simultaneous spectroscopy

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'IR/THz simultaneous spectroscopy'

Author: Grafiati
Published: 25 May 2024
Last updated: 31 July 2025

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Journal articles on the topic "IR/THz simultaneous spectroscopy"

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Chupas, Peter, Karena Chapman, Kevin Beyer, Olaf Borkiewicz, and Haiyan Zhao. "Simultaneous infrared spectroscopy and X-ray PDF measurements." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1179. http://dx.doi.org/10.1107/s2053273314088202.

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Combining insights from diffuse reflection infrared Fourier transform spectroscopy (DRIFTS) and X-ray pair distribution function (PDF) analysis has the potential to provide deeper insight into complex materials systems under reactive conditions, including heterogeneous catalysts and host-guest systems. We have developed instrumentation and non-ambient reaction cells that enable combined PDF-IR studies without compromise to either measurement. Through careful selection of the IR spectrometer and optics, the IR instrument and reaction cell were adapted to allow angular dispersive X-ray measureme
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Śliwińska, Smolinski, and Kucharski. "Simultaneous Analysis of Heavy Metal Concentration in Soil Samples." Applied Sciences 9, no. 21 (2019): 4705. http://dx.doi.org/10.3390/app9214705.

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The application of Fourier transform infrared spectroscopy to the simultaneous analysis of heavy metal concentration in soil samples was demonstrated in this paper. Two spectral techniques, namely, attenuated total reflectance (ATR) and diffuse reflectance (DRIFT), were applied and the whole infrared spectral region, i.e., far IR, mid IR, and near IR were considered in this work. Spectral data with reference to the results of laboratory analysis enabled the development of calibration partial least squares (PLS) models. The PLS models for the ATR near IR were characterized by a good fit and goo
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Pelletier, Isabelle, Christian Pellerin, D. Bruce Chase, and John F. Rabolt. "New Developments in Planar Array Infrared Spectroscopy." Applied Spectroscopy 59, no. 2 (2005): 156–63. http://dx.doi.org/10.1366/0003702053085043.

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A planar array infrared (PA-IR) spectrograph offers several advantages over other infrared approaches, including high acquisition rate and sensitivity. However, it suffers from some important drawbacks, such as a limited spectral range and a significant curvature of the recorded spectral images, which still need to be addressed. In this article, we present new developments in PA-IR spectroscopy that overcome these drawbacks. First, a data processing method for the correction of the curvature observed in the spectral images has been developed and refined. In addition, a dual-beam instrument tha
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Zhu, Qianqian, Rui Zhou, Jun Liu, Jianzhong Sun, and Qianqian Wang. "Recent Progress on the Characterization of Cellulose Nanomaterials by Nanoscale Infrared Spectroscopy." Nanomaterials 11, no. 5 (2021): 1353. http://dx.doi.org/10.3390/nano11051353.

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Researches of cellulose nanomaterials have seen nearly exponential growth over the past several decades for versatile applications. The characterization of nanostructural arrangement and local chemical distribution is critical to understand their role when developing cellulose materials. However, with the development of current characterization methods, the simultaneous morphological and chemical characterization of cellulose materials at nanoscale resolution is still challenging. Two fundamentally different nanoscale infrared spectroscopic techniques, namely atomic force microscope based infr
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Sullivan, David H., W. Curtis Conner, and Michael P. Harold. "Surface Analysis with FT-IR Emission Spectroscopy." Applied Spectroscopy 46, no. 5 (1992): 811–18. http://dx.doi.org/10.1366/0003702924124844.

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The technique of infrared emission spectroscopy (IRES) is reviewed and further examined in this study as a surface analysis tool. A system has been designed which allows simultaneous kinetic and in situ infrared emission analysis of catalyst surfaces. IRES spectra of several gas mixture/solid systems are obtained in order to examine sample preparation and spectra processing issues; these systems include Pt/Al2O3 exposed to CO and CO-NO mixtures, an oxidized copper plate, and a zeolite exposed to inert atmospheres. For the temperature range of importance to catalysis (300–600 K), IRES is limite
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Beyer, Kevin A., Haiyan Zhao, Olaf J. Borkiewicz, Mark A. Newton, Peter J. Chupas, and Karena W. Chapman. "Simultaneous diffuse reflection infrared spectroscopy and X-ray pair distribution function measurements." Journal of Applied Crystallography 47, no. 1 (2013): 95–101. http://dx.doi.org/10.1107/s1600576713028410.

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Combining insights from diffuse reflection infrared Fourier transform spectroscopy and X-ray pair distribution function (PDF) analysis has the potential to deepen our understanding of complex materials systems including heterogeneous catalysts and host–guest systems. This article describes the development of instrumentation and non-ambient reaction cells that enable combined PDF–IR studies without compromise to either measurement. Through careful selection of the IR spectrometer and optics, the IR instrument and reaction cell were adapted to allow angular dispersive X-ray measurements without
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Liu, Kan-Zhi, R. Anthony Shaw, Angela Man, Thomas C. Dembinski, and Henry H. Mantsch. "Reagent-free, Simultaneous Determination of Serum Cholesterol in HDL and LDL by Infrared Spectroscopy." Clinical Chemistry 48, no. 3 (2002): 499–506. http://dx.doi.org/10.1093/clinchem/48.3.499.

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Abstract Background: The purpose of this study was to assess the feasibility of infrared (IR) spectroscopy for the simultaneous quantification of serum LDL-cholesterol (LDL-C) and HDL-cholesterol (HDL-C) concentrations. Methods: Serum samples (n = 90) were obtained. Duplicate aliquots (5 μL) of the serum specimens were dried onto IR-transparent barium fluoride substrates, and transmission IR spectra were measured for the dry films. In parallel, the HDL-C and LDL-C concentrations were determined separately for each specimen by standard methods (the Friedewald formula for LDL-C and an automated
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Hazel, G., F. Bucholtz, I. D. Aggarwal, G. Nau, and K. J. Ewing. "Multivariate Analysis of Mid-IR FT-IR Spectra of Hydrocarbon-Contaminated Wet Soils." Applied Spectroscopy 51, no. 7 (1997): 984–89. http://dx.doi.org/10.1366/0003702971941359.

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This article describes a series of mid-IR FT-IR reflectance spectroscopy measurements of hydrocarbon-contaminated wet soils. The eventual goal of this work is the development of an analysis tool suitable for real-time in situ underground measurements where a suitable reference spectrum is not available. Multivariate analysis of the resulting spectral data indicates that the strongly varying wet soil matrix and the absence of a suitable reference spectrum in the field do not render this measurement technique unfeasible as a means of realizing remote in situ chemical detection in wet soils. It w
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Shaw, R. Anthony, Steven Kotowich, Michael Leroux, and Henry H. Mantsch. "Multianalyte Serum Analysis Using Mid-Infrared Spectroscopy." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 35, no. 5 (1998): 624–32. http://dx.doi.org/10.1177/000456329803500505.

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This study assesses the potential for using mid-infrared (mid-IR) spectroscopy of dried serum films as the basis for the simultaneous quantitation of eight serum analytes: Total protein, albumin, triglycerides, cholesterol, glucose, urea, creatinine and uric acid. Infrared transmission spectra were acquired for 300 serum samples, each analysed independently using accepted reference clinical chemical methods. Quantitation methods were based upon the infrared spectra and reference analyses for 200 specimens, and the models validated using the remaining 100 samples. Standard errors in the IR-pred
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Manning, Christopher J., and Peter R. Griffiths. "Step-Scanning Interferometer with Digital Signal Processing." Applied Spectroscopy 47, no. 9 (1993): 1345–49. http://dx.doi.org/10.1366/0003702934067630.

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A novel step-scan FT-IR spectrometer incorporating a digital signal processor for demodulation of the detector signal is described. The potential advantages of this method of signal processing are discussed and illustrated. The instrument is based on a commercial cube-corner interferometer which has been modified by replacement of the drive motor with a stepper motor-micrometer and piezoelectric transducer combination. The interferometer retardation is feedback controlled by a 486–50 personal computer, which also controls the digital signal processor and collects spectral data. More than one p
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Dissertations / Theses on the topic "IR/THz simultaneous spectroscopy"

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Tchana, betnga Wilfried. "Développement d'instrumentation pour une spectroscopie simultanée THz et IR : application à l'équilibre de HONO." Electronic Thesis or Diss., Université Paris Cité, 2023. http://www.theses.fr/2023UNIP7134.

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La mesure des concentrations d'espèces traces, susceptibles d'avoir un impact notable sur la santé, le climat ou la stabilité de la couche d'ozone constitue un véritable défi. Les prochaines missions spatiales, prévues à haute sensibilité (FORUM et IASI-NG), apporteront un progrès seulement si les paramètres spectraux nécessaires sont disponibles. Pour certaines espèces réactives, telles que l'acide nitreux (HONO) et l'acide hypobromeux (HOBr), les données spectroscopiques sont incomplètes ou quasiment inexistantes. Le défi dans cette thèse consiste à obtenir des paramètres spectroscopiques qu
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Pezzotti, Simone. "DFT-MD simulations and theoretical SFG spectroscopy to characterize H-Bonded networks at aqueous interfaces : from hydrophobic to hydrophilic environments Structural definition of the BIL and DL: a new universal methodology to rationalize non-linear χ(2)(ω) SFG signals at charged interfaces, including χ(3)(ω) contributions What the Diffuse Layer (DL) Reveals in Non-Linear SFG Spectroscopy 2D H-Bond Network as the Topmost Skin to the Air-Water Interface Combining ab-initio and classical molecular dynamics simulations to unravel the structure of the 2D-HB-network at the air-water interface 2D-HB-Network at the air-water interface: A structural and dynamical characterization by means of ab initio and classical molecular dynamics simulations Spectroscopic BIL-SFG Invariance Hides the Chaotropic Effect of Protons at the Air-Water Interface Molecular hydrophobicity at a macroscopically hydrophilic surface Graph theory for automatic structural recognition in molecular dynamics simulations DFT-MD of the (110)-Co3O4 cobalt oxide semiconductor in contact with liquid water, preliminary chemical and physical insights into the electrochemical environment". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLE008.

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Améliorer notre connaissance de la structure de l'eau dans l'environnement spécial offert par une interface est essentiel pour la compréhension de nombreux phénomènes naturels et applications technologiques. Pour révéler cette structure interfaciale de l'eau, des techniques capables de fournir des informations microscopiques, de manière sélective, pour cette couche interfaciale (BIL) sont nécessaires. Dans le présent travail de thèse, nous avons donc étudié les interfaces aqueuses au niveau moléculaire, en couplant la modélisation théorique à partir de simulations DFT-MD avec les spectroscopie
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Garet, Frédéric. "Génération optoélectronique d'impulsions électromagnétiques ultra-courtes : application à la spectroscopie THz." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0175.

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Nous presentons la construction et l'utilisation d'une experience de spectroscopie terahertz pour la caracterisation de materiaux dans le domaine sub-millimetrique, les mesures etant realisees dans le domaine temporel. Dans une premiere partie, nous decrivons tout d'abord l'experience dediee a la generation et a la mesure d'impulsions electromagnetiques (em) ultracourtes. Nous employons des photocommutateurs sur substrat de lt-gaas excites par une impulsion laser de 100 fs de duree, et utilises comme dipole de hertz. Nous obtenons ainsi des impulsions em de durees voisines de la picoseconde et
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Lin, Wei-Chen, and 林威呈. "A new approach for simultaneous characterization of the material's permittivity and permeability by THz time-domain spectroscopy." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/39400506040474816320.

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Book chapters on the topic "IR/THz simultaneous spectroscopy"

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Vittone, A., C. Rossi, E. Covino, and F. Giovannelli. "High S/N simultaneous optical and IR spectrophotometric observations of Herbig Ae/Be stars." In The Impact of Very High S/N Spectroscopy on Stellar Physics. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2937-1_20.

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Raghavendra Babu, N., Malothu Narender, Y. Padmavathi, A. Narmada, and P. Ravi Kumar. "A Novel Fourier Transform Infrared Spectrophotometric Method for Quantitative Analysis of Irbesartan and Hydrochlorthiazide in Fixed Dose Formulations." In Current Trends in Drug Discovery, Development and Delivery (CTD4-2022). Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781837671090-00268.

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The development of reliable Fourier transform infrared (FTIR) instrumentation has made IR spectroscopy a more widely used technique for quantitative analysis. Qualitative organic compound identification has always been its strength. IRB and HTZ were estimated simultaneously in pharmaceutical dosage forms using a new FTIR spectroscopic approach. The approach involves KBr pelletization of IRB and HTZ and direct measurement with a reduced path length cell. In absorbance mode, the instrument gathered infrared spectra with 8cm-1 resolution. IR peaks changed after baseline adjustment. The strong, un
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Brovko, Oleksandr O., Natalia V. Yarova, Tetiana F. Samoilenko, and Larysa M. Yashchenko. "Mutual sensibilization in epoxyacrylate interpenetrating polymer networks." In NEW FUNCTIONAL SUBSTANCES AND MATERIALS FOR CHEMICAL ENGINEERING. PH “Akademperiodyka”, 2021. http://dx.doi.org/10.15407/akademperiodyka.444.149.

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Using the method of IR spectroscopy, the kinetic features of the course of photoinitiated cationic and free radical polymerization in simultaneous epoxyacrylate interpenetrating polymer networks were investigated. The degree and rate of conversion of epoxy groups in the epoxy component (aliphatic diepoxide UP-650D, aliphatic-alicyclic triepoxide UP-650T, and diane epoxides ED-20 and Epicot 828), and the opening of double bonds in acrylate component (triethylene glycol dimethacrylate) were determined. The sensitizing effect of the acrylate component on the degree of conversion of epoxy groups i
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Brandt N.N., Chikishev A.Yu., Mankova A.A., Nazarov M.M., Sakodynskaya I.K., and Shkurinov A.P. "THz and IR spectroscopy of molecular systems that simulate function-related structural changes of proteins." In Advances in Biomedical Spectroscopy. IOS Press, 2013. https://doi.org/10.3233/978-1-61499-184-7-273.

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The activity of enzymes in organic solvents substantially increases in the presence of crown ethers. Tris(hydroxy- methyl)aminomethane (tris) is chosen as a model compound to simulate the interaction of surface amino groups of protein with crown ether. The methods of FTIR and time-domain THz spectroscopy are used to study the interaction of tris with 18-crown-6. The THz spectra of the complexes are measured for the first time.
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Kumar Mitra, Rajib, and Dipak Kumar Palit. "Probing Biological Water Using Terahertz Absorption Spectroscopy." In Terahertz Technology [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97603.

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Hydrogen bonding properties of water molecules, which are confined in microcavities of biological interfaces, are significantly different from those of bulk water and drive most of the complex biological processes. While NMR, X-ray and UV–vis-IR spectroscopic techniques have been found inadequate for describing the dynamics of the thick (20–40 Å) sheath of hydration layer around biomolecules, recently developed THz spectroscopy has emerged as a powerful technique to directly probe the collective dynamics of hydrogen bonds in the hydration layer, which control all important functions of the bio
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Sahu, Aman, Neakanshika Chadha, Akansha Agrwal, Ajay Kumar, and Saurabh Gangola. "Recent Uses of Spectroscopy in Characterization of Novel Molecules." In Advances in Chemical and Materials Engineering. IGI Global, 2025. https://doi.org/10.4018/979-8-3693-7473-3.ch009.

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Spectroscopy is a vital tool for characterizing novel molecules across various scientific fields, including organic chemistry, material science, biochemistry, pharmacology, environmental science, astrochemistry, and nanotechnology. In organic synthesis, techniques like Nuclear Magnetic Resonance (NMR), mass spectrometry, and Infrared (IR) spectroscopy are used to determine the structure of newly synthesized compounds. UV-Visible and Raman spectroscopy help analyze chemical composition and molecular properties in materials. For biomolecules and pharmaceuticals, UV-Vis and rotational spectroscop
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"Peculiarities of luminescent oxyfluoride sol-gel nano-glass- ceramics doped with Ho3+, Tm3+, and Pr3+ ions." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.16.14.

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Lanthanide ions are promising optical dopants whose energy levels enable the generation of luminescence across broad spectral ranges from ultraviolet, through visible light up to infrared irradiation. Thus, such a tremendous spectrum of emitted wavelengths opens vast application possibilities for optical materials doped with Ln3+, which could be successfully utilized, e.g., in optoelectronics for color screens or amplifiers operating in the telecommunication windows, for documents’ anti-counterfeiting, optical thermometry, and bioimaging. Among the various classes of optical materials doped wi
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Conference papers on the topic "IR/THz simultaneous spectroscopy"

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Konnov, Dmitrii, Andrey Muraviev, Sergey Vasilyev, and Konstantin L. Vodopyanov. "Dual-Comb Spectroscopy with 200,000 Resolved Comb Teeth Across Mid-IR to THz at Video (69 Hz) Rate." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf2f.5.

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Using electro-optically sampled dual-comb spectroscopy we performed high-resolution spectroscopic measurements across an unprecedented 1.5–45 THz (6.6–200µm) spectral range with simultaneous acquisition of octave-wide spectra (200,000 comb lines) at 69-Hz rate.
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Konnov, Dmitrii, Andrey V. Muraviev, Sergey Vasilyev, and Konstantin L. Vodopyanov. "Dual-comb spectroscopy with sub-10-MHz resolution simultaneously over mid-IR to THz spectral range." In Nonlinear Frequency Generation and Conversion: Materials and Devices XXIV, edited by Jeffrey Moses. SPIE, 2025. https://doi.org/10.1117/12.3047714.

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Gollner, Claudia, Rokas Jutas, Dominik Kreil, et al. "Strong, Mid-IR Driven THz Generation for Nonlinear Spectroscopy." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf1g.4.

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We report on strong-field THz sources from optical rectification in organic crystals or two-color plasma filaments, driven by intense mid-IR pulses. Non-linear perturbation of semiconductor materials is demonstrated by the applied THz transients.
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Dosan, Vasile-Laurenţiu, Adrià Sansa Perna, Marta Gilaberte Basset, Sebastian Töpfer, and Oliver de Vries. "Simultaneous quantum imaging and spectroscopy with undetected photons." In Quantum 2.0. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/quantum.2024.qtu4c.6.

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We report a scheme for simultaneous quantum imaging and spectroscopy with undetected photons for low-cost IR sensing. Using curved mirrors and SPDC spatial filtering, we improve fiber-coupled visibility and minimize optical aberrations and system dimensions.
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Chazan, Pierre, and Shankar Baliga. "Advanced Pyroelectric Detectors for Spectroscopy." In Optical Sensors. Optica Publishing Group, 2024. https://doi.org/10.1364/sensors.2024.sth5b.4.

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Pyroelectric infrared detectors are used in spectroscopy at relatively high modulation frequencies and long IR wavelengths out to THz. This paper describes continued advances in Lithium Tantalate pyroelectric detectors that provide for higher performance in a scalable, disruptive sensing technology.
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Danilov, Artem, Tobias Gokus, and Andreas J. Huber. "Nanoscale analytics with AFM probe-assisted techniques." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.am4a.7.

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Scattering-type Scanning Near-field Optical Microscopy (s-SNOM), nano-FTIR spectroscopy, as well as photothermal expansion-based techniques are scanning probe approaches to achieve nanoscale spatial resolution in the infrared spectral range, bypassing the ubiquitous diffraction limit of light [1,2]. These techniques employ the strong confinement of light at the apex of a sharp metallic atomic force microscopy (AFM) tip to create a nanoscale optical hot-spot. Analyzing the scattered light from the tip, or the deflection of the cantilever upon local photothermal expansion of the sample due to ab
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Vasilyev, Sergey, Mike Mirov, Sergey Mirov, and Konstantin Vodopyanov. "Video-Rate Broadband Longwave IR Dual-Comb Spectroscopy with Cr:ZnS lasers." In Applied Industrial Spectroscopy. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ais.2023.jth3a.1.

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Cr:ZnS comb sources uniquely combine few-optical-cycle pulses with multi-Watt power and ultra-low intensity noise enabling LWIR and THz spectroscopy systems that simultaneously access all the advantages of the dual comb method.
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Cristescu, S. M., K. E. Jahromi, A. Khodabakhsh, et al. "Volatiles detection using broadband mid-IR spectroscopy: from a research idea to application in fruit storage facilities." In Applied Industrial Spectroscopy. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ais.2023.atu5a.2.

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A broadband mid-infrared gas sensor using a supercontinuum light source is developed for simultaneous multispecies detection. We present the journey from a laboratory setup towards a market-ready prototype for application in fruit storage facilities.
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Lo, Michael K. F., Jay Anderson, Eoghan P. Dillon, Mustafa Kansiz, and Curtis A. Marcott. "Submicron Noncontact Simultaneous Infrared and Raman Spectroscopy for Challenging Failure Analysis." In ISTFA 2021. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.istfa2021p0196.

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Abstract This paper discusses the use of optical photothermal infrared (O-PTIR) spectroscopy combined with Raman analysis. The new technique overcomes many of the limitations of conventional FTIR and Raman spectroscopy when used alone. It is based on an infrared-visible pump-probe system that incorporates a wavelength-tunable IR laser that emits a pulsed beam that is combined colinearly with the output of a 532-nm green laser. As the paper explains, infrared radiation is partially absorbed by the test target when the wavelength of the laser resonates with the vibrational mode of the material.
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Anderson, Jay, Mustafa Kansiz, Michael Lo, and Curtis Marcott. "Submicron Simultaneous IR and Raman Spectroscopy (IR+Raman): Breakthrough Developments in Optical Photothermal IR (O-PTIR) Combined for Enhanced Failure Analysis." In ISTFA 2019. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.istfa2019p0292.

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Abstract Failure analysis of organics at the microscopic scale is an increasingly important requirement, with traditional analytical tools such as FTIR and Raman microscopy, having significant limitations in either spatial resolution or data quality. We introduce here a new method of obtaining Infrared microspectroscopic information, at the submicron level in reflection (far-field) mode, called Optical-Photothermal Infrared (O-PTIR) spectroscopy, that can also generate simultaneous Raman spectra, from the same spot, at the same time and with the same spatial resolution. This novel combination
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Reports on the topic "IR/THz simultaneous spectroscopy"

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Agassi, Menahem, Michael J. Singer, Eyal Ben-Dor, et al. Developing Remote Sensing Based-Techniques for the Evaluation of Soil Infiltration Rate and Surface Roughness. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7586479.bard.

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The objective of this one-year project was to show whether a significant correlation can be established between the decreasing infiltration rate of the soil, during simulated rainstorm, and a following increase in the reflectance of the crusting soil. The project was supposed to be conducted under laboratory conditions, using at least three types of soils from each country. The general goal of this work was to develop a method for measuring the soil infiltration rate in-situ, solely from the reflectance readings, using a spectrometer. Loss of rain and irrigation water from cultivated fields is
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