Resolving discharge parameters from atomic oxygen emission

Reactive Oxygen Emission From Microwave Discharge Plasmas

Metastable oxygen atoms and molecules have received increased interest because of their function in surface modification, bio-decontamination and many other industrial applications, in addition to the role in the upper atmospheric layer chemistry. We review work on production and detection of metastable oxygen and we describe our experiments, including the development of techniques for measurem...

RF Glow Discharge Atomic Emission Spectroscopy of Non-Conducting Materials

Resolving Lattice Oxygen Atoms

777 Thinking Coherently About the Second Law The efficiency of heat engines has been limited by the Carnot cycle, which states that the efficiency cannot exceed 1 – Tc/Th, where Tc and Th are the absolute temperatures of the cold and hot reservoirs feeding the engine. Scully et al. (p. 862; see the Perspective by Linke) show how this limiting efficiency can be beaten with a coherent heat source...

Spatially-resolved observation of the excitation temperature in a glow discharge plasma for atomic emission spectrometry.

A two-dimensionally imaging spectrometer system was employed to obtain the spatial distribution of the excitation temperature in a glow discharge plasma for emission analysis. A Grimm-style glow discharge excitation source, whose hollow anode had an inner diameter of 8 mm, was observed over the whole emission area. The mapping of the excitation temperature was conducted by using a two-line meth...

Spatially-resolved observation of glow discharge plasma for atomic emission spectrometry.

An imaging spectrograph equipped with a CCD detector was employed to measure two-dimensional emission images from a glow discharge plasma in atomic emission spectrometry. The emission images at Zn I 334.50 nm for a zinc sample and at Cu I 324.75 nm for a copper sample could be obtained. Their emission intensities were not uniform in the radial direction of the plasma region but became weaker at...