... Infrared spectroscopy, atomic absorption spectroscopy, emission spectroscopy and chemical analysis were used to characterize their chemical ...
DTIC Science & Technology
... originated problems in support of their in-house programs and research programs in vibrational spectroscopy and atomic absorption spectroscopy. ...
... Accession Number : ADD255392. Title : Characterization of SiC Whiskers Through Infrared-Absorption Spectroscopy. Descriptive ...
The high sensitivity technique of laser photoacoustic spectroscopy and optical absorption spectroscopy were utilized to investigate the hydrolysis of Pu(VI) in perchlorate media. Absorption bands attributed to the hydrolysis of Pu(VI) were characterized i...
National Technical Information Service (NTIS)
... Abstract : The overall project is to assess the applicability of intracavity laser absorption spectroscopy for in situ, non-instrusive monitoring of the ...
... Hall effect, Deep Level Transient Spectroscopy (DLTS), optical absorption, Fourier Transform Infrared (FTIR) spectroscopy, and Thermally ...
An accurate analysis of aluminum alloys is required for quality control and characterization purposes. The two analytical techniques atomic absorption spectroscopy and inductively coupled plasma atomic emission spectroscopy are used for the the determinat...
... Title : Characterization of Polymer Dispersed Liquid Crystal Shutters by UV and IR Absorption Spectroscopy. Descriptive Note : Technical rept. ...
The manganese sites in chloroplasts, long thought to be involved in photosynthetic oxygen evolution have been examined and partially characterized by x-ray Absorption Spectroscopy (XAS) using synchrotron radiation. The local environment about the manganes...
X-ray absorption spectroscopy is a particularly promising tool for characterizing amorphous materials such as glass. The problems that hinder this application are (1) difficulties in obtaining adequate spectral resolution and definition, (2) appropriate i...
The relaxation of poled nonlinear optical (NLO) chromophores in polymer films was characterized by infrared reflection-absorption spectroscopy. Both a guest-host system and a photo-crosslinkable polymer system were investigated. Polymethylmethacrylate dop...
The relaxation of poled nonlinear optical (NLO) chromophores in polymer films was characterized by infrared reflection-absorption spectroscopy. Both a guest-host system and a photocrosslinkable polymer system were investigated. Polymethylmethacrylate (PMM...
As performance levels for sophisticated electronic materials and device processing increase so to does the demand for versatile methods for on-line real time sensing of many process parameters. To that end we have developed a series of tunable semiconductor laser spectrometers for use in detection schemes of gas phase chemical species via infrared absorption ...
NASA Astrophysics Data System (ADS)
An apparatus for calorimetric absorption spectroscopy (CAS) and calorimetric transmission spectroscopy (CTS) at temperatures up to 1.3K, including computer control, data acquisition, and data evaluation, was built. At 1.3K, products of absorption coeffici...
... high resolution IR absorption spectroscopy in ... Descriptors : *HYDROGEN, *ABSORPTION, *SOLID ... PROPERTIES, INFRARED SPECTROSCOPY ...
Transits provide the best opportunity for characterization. Absorption spectroscopy of planetary limbs during transits. (e.g. Na & H. 2. O spectra of HD ...
NASA Website
... due to the increased triplet absorption cross section at ... been characterized by resonance Raman spectroscopy ... is in the low-frequency region where ...
Aug 27, 1985 ... 2406) Extensive characterization of the flight-produced films by IR and UV- visible reflection-absorption spectroscopy, X-ray diffraction, ...
... by underpotential deposition) on silver (III) and gold (III) surfaces, respectively, have been characterized by x-ray absorption spectroscopy and x-ray ...
... spectroscopy techniques used to characterize these materials included four-wave mixing, two photon absorption and fluorescence line narrowing. ...
Absorption losses at a nanorough silver back reflector of a solar cell were measured with high accuracy by photothermal deflection spectroscopy. Roughness was characterized by atomic force microscopy. The observed increase of absorption, compared to the smooth silver, was explained by the surface plasmon ...
Some previous studies of polyaniline, or (phiN)x, using infrared spectroscopy, X ray photoelectron spectroscopy and NMR, are reviewed. New results involving the optical absorption spectra of free standing, electrochemically prepared (phiN)x, in both in th...
The purpose of the first part of this project is to develop a method to diagnose mammary gland hyperplasias in an animal model in vivo using optical spectroscopy, so that the progression of benign lesions could be studied over time. The absorption and sca...
The techniques of deep level derivative absorption spectroscopy (DLDAS), photoinduced-transients-spectroscopy (P.I.T.S.) were employed to study deep levels and interfaces in GaAs. Optical transitions due to impurities and structural imperfections where ob...
Tunable laser absorption spectroscopy is used in conjunction with an optical fiber probe configuration for the remote measurement of minor chemical species in combustion environments. The sodium atom concentration field in a laboratory combustor was studied in order to characterize probe effects and demonstrate the spatial resolutions ...
Energy Citations Database
The high sensitivity technique of laser photoacoustic spectroscopy and visible absorption spectroscopy were utilized to investigate the hydrolysis of Pu(VI) in perchlorate media. Pu(VI) absorption bands in the 600 to 700 nm were characterized as a functio...
... Title : ULTRASONIC ABSORPTION SPECTROSCOPY IN FLUIDS BY OPTICAL DETECTION OF PHOTOACOUSTIC PULSE PROFILES. ...
TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY VERIFICATION ANALYSIS FOR USE IN THE COMBUSTION OPTIMIZATION AND ...
... Accession Number : AD0422032. Title : THE USE OF INFRARED ABSORPTION SPECTROSCOPY IN RESEARCH ON HAFNIA AND ZIRCONIA. ...
... Accession Number : AD0606049. Title : ATOMIC ABSORPTION SPECTROSCOPY. Descriptive Note : Final rept. Corporate ...
... Accession Number : ADD752978. Title : AEROSOL ABSORPTION SPECTROSCOPY. Descriptive Note : CONFERENCE PAPER. ...
... Title : A STUDY OF OPTICAL ABSORPTION SPECTROSCOPY FROM METASTABLE EXCITED STATES OF TRANSITION METALS IONS IN ...
X-ray absorption spectroscopy was used to characterize the metal-support interface in catalysts consisting of very small Ir clusters of nearly uniform nuclearity on the surface of MgO powder. [Ir[sub 4](CO)[sub 12
... 8c. ADDRESS (City, State. ... FIELD GROUP SUBI-GROUP Defect characterization, Magneto-Optical nleasurelnents, 17 05 Two Photon Spectroscopy ...
This report discusses work on the characterization by extended x-ray absorption fine structure spectroscopy, structures formed on the surface of partially dehydroxylated magnesium oxides by adsorption of (HRe(CO){sub 5}).
DOE Information Bridge
The technique of infrared wavelength modulation absorption, photo-induced transient-spectroscopy, Raman scattering, and photo-mixing were developed for non-destructive characterization of layered semiconductors. Infrared wavelength modulation on semi-insu...
This paper presents a first attempt at in situ characterization of very thin passive layers forming at implanted Ru/Ti alloys by photoacoustic and photocurrent spectroscopies. The photoacoustic spectroscopy gives the optical absorption of the layer. Chang...
... ATOMIC EMISSION SPECTROSCOPY; ATOMIC ABSORPTION ... SPECTROSCOPY; MOLECULAR FLUORESCENCE SPECTROSCOPY; X- ...
... STRUCTURE, SPECTROSCOPY, INFRARED SPECTROSCOPY, ABSORPTION SPECTRA, ULTRAVIOLET SPECTROSCOPY, CHEMICAL ...
... MOLECULAR SPECTROSCOPY, LASER INDUCED FLUORESCENCE, MOLECULAR ... ABSORPTION, ATOMIC SPECTROSCOPY, DISSOCIATION ...
analysis method for extended x-ray absorption fine structure spectroscopy suitable for use with compounds generality and precision are demonstrated in analyses made on two model nanoscale samples: 1 a Ir as the broader utility of the new x-ray absorption spectroscopy based protocol used to ...
E-print Network
Sputter deposited non-stoichiometric tantalum nitride films are oxidized in air between 200 and 500{degrees}C to form a passive film. The oxidized films have been studied with x-ray absorption near edge spectroscopy (XANES) and extended x-ray absorption near edge spectroscopy (EXAFS). Films exposed to KOH formed a ...
The theoretical principles and instrumentation requirements of X-ray absorption spectroscopy under conditions of total external reflection are described with particular reference to their application in the characterization of solid-solid interfaces. The ...
X-ray absorption spectroscopy is used to characterize the electronic modifications and the composition of the electrolyte on the structural modifications occurring in thermally oxidized MoS{sub 3} layers after electrocoloration. This paper has correlated the evaluation of the electrochemical and electrochromic properties of the ...
Surface-enhanced Raman scattering (SERS) and reflection-absorption infrared spectroscopy (RAIR) were used to determine the molecular structure of interphases formed by curing the polyamic acid of pyromellitic dianhydride (PMDA) and 2,2-BIS(4-(4-aminopheno...
Reflectivity x-ray absorption spectroscopy is applied to investigate surface oxidized copper thin films. The data reveal air exposed film surfaces to comprise a macroscopic mixture of Cu and Cu2O whereas thermally oxidized films comprise a uniform layer o...
Raman and near-infrared (NIR) spectroscopy systems are being developed for use in sensing and characterizing the Hanford high-level radioactive wastes that are by-products of the chemical processing of nuclear weapons material. This waste has been stored in large underground tanks since the early 1940s. Waste tank materials ...
Optical absorption in the plume produced by excimer laser ablation of Y(sub 1)Ba(sub 2)Cu(sub 3)O(sub 7-x) under film growth conditions has been observed for the first time and used to characterize the transport of ground state Y, Ba, and Cu neutrals as w...
