A3 Kirjan tai muun kokoomateoksen osa
High Resolution Gas Phase IR Spectroscopy Instrumentation




Julkaisun tekijät: Jyrki K. Kauppinen, Jari O. Partanen
Painoksen nimi tai numero: 3.
Julkaisuvuosi: 2017
Kirjan nimi *: Encyclopedia of Spectroscopy and Spectrometry
Tietokannassa oleva lehden nimi: ENCYCLOPEDIA OF SPECTROSCOPY AND SPECTROMETRY, 3RD EDITION, VOL 2: G-M
Sivujen määrä: 10
ISBN: 978-0-12-803224-4

Tiivistelmä

The definition of high resolution in IR spectroscopy has been changing with time. In this article, the limit of high resolution is defined as 0.1 cm-1. This is the full width at half height (FWHH) of the line; in other terms the higher the resolution, the smaller the FWHH. In history, grating and even prism spectrometers, which have a lower resolution than 0.1 cm-1, have also been regarded as high-resolution instruments, but the development of spectroscopic instrumentation has pushed the limit of high resolution towards smaller FWHH. Nowadays, high-resolution IR spectra are generally recorded by Fourier-transform IR (FT-IR) spectrometers, or by laser spectrometers. This article focuses on the last two types of spectrometers.



Last updated on 2019-21-08 at 22:42