Open AccessThe high‐resolution absorption spectroscopy branch on the VUV beamline DESIRS at SOLEIL
Author(s) -
de Oliveira Nelson,
Joyeux Denis,
Roudjane Mourad,
Gil Jean-François,
Pilette Bertrand,
Archer Lucy,
Ito Kenji,
Nahon Laurent
Publication year - 2016
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577516006135
Subject(s) - beamline , spectrometer , spectral resolution , optics , synchrotron , spectroscopy , materials science , absorption (acoustics) , absorption spectroscopy , resolution (logic) , spectral line , physics , computer science , beam (structure) , quantum mechanics , astronomy , artificial intelligence
A VUV absorption spectroscopy facility designed for ultra‐high spectral resolution is in operation as a dedicated branch on the DESIRS beamline at Synchrotron SOLEIL. This branch includes a unique VUV Fourier transform spectrometer (FTS) and a dedicated versatile gas sample chamber. The FTS instrument can cover a large UV–VUV spectral range from 4 to 30 eV, with an ultimate line width of 0.08 cm −1 on a large spectral window, Δ E / E = 7%, over which all spectral features can be acquired in a multiplex way. The performance can be considered to be a middle ground between broadband moderate‐resolution spectrometers based on gratings and ultra‐high‐spectral‐resolution VUV tunable‐laser‐based techniques over very narrow spectral windows. The various available gaseous‐sample‐handling setups, which function over a wide range of pressures and temperatures, and the acquisition methodology are described. A selection of experimental results illustrates the performance and limitations of the FTS‐based facility.