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Famed Bulgarian physicists. I. St. Petroff's Goettingen research of the photostimulated interconversions of color centers in alkali halides: the discovery of the photostimulated aggregation

2008/01/08 by Mladen Georgiev, Georgiev, Mladen
Physics and Astronomy · #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #History and Philosophy of Physics (physics.hist-ph) #physics.chem-ph #physics.hist-ph

paper · pdf · doi:10.48550/arxiv.0801.1327

8 pages with 3 figures and 1 picture, all pdf format

arxiv created 2008/01/08 · arxiv updated 2009/12/01

Abstract

This essay tells briefly of the life and work of one of the most successful scientists originating from a Balkan settlement whose name and popularity have greatly exceeded its realm. The word is of a discovery during WWII of the photostimulated aggregation of the F centers (else alkali atoms) dissolved from the vapor into an alkali halide crystal. Using optical absorption techniques while a grantee of Humboldt's Foundation in Goettingen, Germany between 1943-1944, he found new absorption bands pertaining to small-size F center aggregates and followed their interconversions. A primary photochemical solid state reaction was evidenced for the first time leading to nanoscale products.

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