Color centers in alkali halides

Abstract

The Fourth International Symposium on Color Centers in Alkali Halides, held at the II Physikalisches Institut of the Technische Hochschule, Stuttgart, on August 21–24, 1962, attracted approximately 130 scientists from fifteen countries, with almost half of the attendance coming from the US.

Study of color centers induced by PIXE irradiation

“…In fact, this kind of light is commonly used by art historians to make some analyses of paintings, and should not cause any damage to the pigment. These results could agree with the theory of color centers: it is indeed well known that heating or applying an UV radiation will destroy color centers [32].…”

Assignments and optical properties of X-ray-induced colour centres in blue and orange radiophotoluminescent silver-activated glasses

“…These new bands are respectively designated as the "A", "B", "C", "D" and "E" bands, as described in Ref. [17]. Parfianovich et al [18] observed induced bands at "B" (peaking at 278 nm), "C" (310 nm), "D" (335 nm) and "E" (400 nm) in X-ray irradiated NaCl:Ag.…”

Growth of KCl<sub>1–x</sub>Br<sub>x </sub>Mixed Crystals with Different Composition Percent and Study of KBr Concentration Effect on Optical Characteristics of Mixed Crystals

“…The conclusions of these studies indicate that structure of defects for mixed crystals is different in contrast with their pure position. The difference of atomic size between mixed crystals cause to local stresses in lattice and this defeat change crystal properties, its lattice parameters [8][9][10]. In addition, mixed alkali halides found their applications in optical, opto-electronic and electronic devices.…”