Topic
Fourier transform spectroscopy
About: Fourier transform spectroscopy is a research topic. Over the lifetime, 5418 publications have been published within this topic receiving 134133 citations.
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TL;DR: A new method of measurement that essentially combines Fourier-domain optical coherence tomography with spectroscopy is introduced by use of a windowed Fourier transform to obtain spectroscopic information such as the absorption properties of materials.
Abstract: A new method of measurement that essentially combines Fourier-domain optical coherence tomography with spectroscopy is introduced. By use of a windowed Fourier transform it is possible to obtain, in addition to the object structure, spectroscopic information such as the absorption properties of materials. The feasibility of this new method for performing depth-resolved spectroscopy is demonstrated with a glass filter plate. The results are compared with theoretically calculated spectra by use of the well-known spectral characteristics of the light source and the filter plate.
386 citations
369 citations
TL;DR: In this paper, the fundamental principles of Fourier transform mass spectrometry (FTMS) are presented, and the motion of ions in a FTMS analyzer can be understood in terms of the magnetic and electric fields present in the analyzer cell.
Abstract: The fundamental principles of Fourier transform mass spectrometry (FTMS) are presented. The motion of ions in a FTMS analyzer can be understood in terms of the magnetic and electric fields present in the FTMS analyzer cell. Ion motion is illustrated with the results of ion trajectory calculations under both collision-free conditions and at high pressure. Dipolar and quadrupolar excitation are described and compared. Practical considerations in obtaining ultra-high-mass resolution and accuracy are discussed. The FTMS experiment is a series of events (ionization excitation, detection) that occur in sequence. Pulse sequences for mass spectrometric and tandem mass spectrometric experiments are presented.
363 citations
TL;DR: In this article, the Fourier transform Raman (FT-Raman) and Fourier Transform Infrared (FTIR) spectra of polyvinylidene fluoride (PVDF) membranes with different porous structures were obtained by the phase inversion process using different casting solvents.
363 citations
TL;DR: In this paper, the authors demonstrated that frequency-sweep excitation can provide the broad-band irradiation required to excite ion cyclotron resonances throughout any desired mass range.
355 citations