Optical Studies of Anisotropic Color Centers in Germanium-Doped Quartz

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Abstract
The optical absorption induced by x rays in germanium‐doped quartz has been investigated using polarized light. The wavelength range was 220–800 mμ, and the behavior of the various bands was examined over the temperature range of 77°—600°K. Absorption bands polarized in parallel to the optical axis were observed at 250, 285, 296, 450, and about 620 mμ, and bands at 260, 272, 290, and 330 mμ were found to be polarized perpendicularly to the optical axis. The experiments also included a study of the optical bleaching of the bands and the effects of exchange of interstitial monovalent ions by electrical diffusion. The results are discussed and correlated with results of electron paramagnetic resonance measurements carried out on the same specimens by J. H. Mackey.

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