High Resolution Spectroscopy of the Hydrogen Atom: Determination of the1SLamb Shift

1996 ◽  
Vol 76 (3) ◽  
pp. 384-387 ◽  
Author(s):  
S. Bourzeix ◽  
B. de Beauvoir ◽  
F. Nez ◽  
M. D. Plimmer ◽  
F. de Tomasi ◽  
...  
Keyword(s):  
High Resolution ◽  
Hydrogen Atom ◽  
High Resolution Spectroscopy

High-Resolution Spectroscopy Using an Acousto-Optic Tunable Filter and a Fiber-Optic Fabry-Perot Interferometer

1996 ◽  
Vol 50 (4) ◽  
pp. 498-503 ◽  
Author(s):  
David P. Baldwin ◽  
Daniel S. Zamzow ◽  
Arthur P. D'Silva
Keyword(s):  
High Resolution ◽  
Inductively Coupled Plasma ◽  
Fiber Optic ◽  
Focal Length ◽  
Atomic Emission ◽  
Tunable Filter ◽  
High Resolution Spectroscopy ◽  
Uranium Isotopes ◽  
Fabry Perot

A compact, solid-state, high-resolution spectrometer consisting of an acousto-optic tunable filter (AOTF) and a fiber-optic Fabry-Perot (FFP) interferometer has been developed. The system has been designed for high-resolution inductively coupled plasma atomic emission spectroscopy (ICP-AES) applications. A description of the AOTF-FFP and its performance is presented. The resolution of the AOTF-FFP was determined by measuring the physical widths of ICP emission lines using a 1.5-m-focal-length grating spectrometer and deconvoluting the physical line shapes from the acquired AOTF-FFP spectra. Over the optimum range of the FFP mirror coatings, the resolution is sufficient for the determination of isotopic and hyperfine emission features in ICP-AES experiments, and approaches that of the 1.5-m spectrometer. The application of the AOTF-FFP to the determination of uranium isotopes (U-235 and U-238) introduced into the ICP is presented.

High resolution spectroscopy of the hydrogen atom

2002 ◽  
Author(s):  
S. Bourzeix ◽  
B. deBeauvoir ◽  
F. Nez ◽  
M.D. Plimmer ◽  
F. deTomasi ◽  
...  
Keyword(s):  
High Resolution ◽  
Hydrogen Atom ◽  
High Resolution Spectroscopy

scholarly journals Determination of the structure and geometry of N-heterocyclic carbenes on Au(111) using high-resolution spectroscopy

2019 ◽  
Vol 10 (3) ◽  
pp. 930-935 ◽  
Author(s):  
Giacomo Lovat ◽  
Evan A. Doud ◽  
Deyu Lu ◽  
Gregor Kladnik ◽  
Michael S. Inkpen ◽  
...  
Keyword(s):  
High Resolution ◽  
Metal Surfaces ◽  
Heterocyclic Carbenes ◽  
High Resolution Spectroscopy

The geometry and bonding of N-heterocyclic carbenes to metal surfaces depends on the substituents on the N-atoms.

scholarly journals High resolution spectroscopy of the hydrogen atom. II. Study of line profiles

1990 ◽  
Vol 51 (20) ◽  
pp. 2275-2292 ◽  
Author(s):  
J.C. Garreau ◽  
M. Allegrini ◽  
L. Julien ◽  
F. Biraben
Keyword(s):  
High Resolution ◽  
Hydrogen Atom ◽  
High Resolution Spectroscopy ◽  
Line Profiles

Analysis of Compounds of Biological Interest by Electron Spectroscopy

1970 ◽  
Vol 16 (8) ◽  
pp. 677-680 ◽  
Author(s):  
L D Hulett ◽  
T A Carison
Keyword(s):  
Quantitative Analysis ◽  
High Resolution ◽  
Electron Spectroscopy ◽  
Binding Energies ◽  
High Resolution Spectroscopy ◽  
Biological Research ◽  
X Rays ◽  
Amine Group ◽  
Biological Interest

Abstract Electron spectroscopy involves measuring the energies of electrons ejected when matter is irradiated with photons. One of the more powerful applications of electron spectroscopy is the determination of the binding energies of the inner shells of atoms with soft X-rays. The binding energies of the inner shells are characteristic of the element; thus, a means of qualitative analysis is provided. Quantitative analysis can be done also. In addition, use of high-resolution spectroscopy enables one to determine the oxidation state of each atom, because the binding energies will shift with chemical environment. For example, the K shell binding energy in nitrogen is about 10 V lower for an amine group than for a nitro group. This analysis can be used for all elements with atomic numbers higher than lithium. The advantages of electron spectroscopy for biological research, both for fundamental and in chemical applications, are discussed in general. Recent studies on t-RNA and its bases are given as specific examples of the applicability of the method.

scholarly journals Data Reduction Induced Errors in the Asteroseismology of Early-Type Stars

2009 ◽  
Vol 5 (H15) ◽  
pp. 358-358
Author(s):  
Petr Škoda
Keyword(s):  
High Resolution ◽  
Data Reduction ◽  
Chemical Elements ◽  
Systematic Errors ◽  
High Resolution Spectroscopy ◽  
Line Profiles ◽  
Early Type ◽  
Early Type Stars

In the asteroseismology of early type stars it plays an important role the extremely precise high resolution spectroscopy. Especially the determination of pulsation modes from observations requires the identification of subtle changes in line profiles of a number of chemical elements. As commonly available instruments suitable for this purpose are echelle spectrographs, there is a number of possible imperfections and even systematic errors introduced by the echelle reduction procedures. We will mention several, most critical steps, that should be carefully checked during every reduction.

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