Review Article

A Minireview of the Natures of Radiation-Induced Point Defects in Pure and Doped Silica Glasses and Their Visible/Near-IR Absorption Bands, with Emphasis on Self-Trapped Holes and How They Can Be Controlled

Figure 4

Optical bands of STH2 and STH1 induced in a low-OH, low-Cl bulk fused silica by pulsed electron irradiation at 77 K. These bands were separated from a series of bands peaking at successively higher energies (not shown) by means dichroic red-light bleaching, and it was these dichroic bands (shown here) that correlated with the ESR spectra recorded for the very same samples. This figure is replotted from [47] using the original data and fitted curves kindly provided in digital form by Tanimura.
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