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On the problem of relaxation for radiation-induced optical effects in some ternary chalcogenide glasses
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- Відділення фізики і астрономії
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- Semiconductor Physics Quantum Electronics & Optoelectronics
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- Semiconductor Physics Quantum Electronics & Optoelectronics, 2007, том 10
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- Semicond. Physics Quantum Electronics & Optoelectronics, 2007, № 3
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On the problem of relaxation for radiation-induced optical effects in some ternary chalcogenide glasses
Інший ID:
PACS 61.80.-x
Посилання:
On the problem of relaxation for radiation-induced optical effects in some ternary chalcogenide glasses / O.I. Shpotyuk, M.M. Vakiv, B. Butkiewicz, A.P. Kovalskiy, R.Ya. Golovchak // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2007. — Т. 10, № 3. — С. 23-27. — Бібліогр.: 17 назв. — англ.
Підтримка:
The authors would like to express the thanks to the
colleagues from the Institute of Solid State Physics of
Bulgarian Academy of Sciences for the collaboration
and preparation of samples. This work was supported in
part by the Mianowski Foundation (Warsaw, Poland)
and the Polish State Committee for Scientific Research.
Дата:
2007
Переглядів:
714
Завантажень:
427
Анотація:
We have investigated the influence of high-energy γ-irradiation on the optical
transmission spectra of ternary Ge-As-S chalcogenide glasses of the stoichiometric
As₂S₃-GeS₂ and non-stoichiometric As₂S₃-Ge₂S₃ systems. A long-wave shift of the
fundamental absorption edge is observed for all glasses. Two different components of
radiation-induced changes were specified: static (residual) and dynamic (time dependent) ones. The dynamic component is mathematically described by the exponential and power functions in respect to post-irradiation periods. It is shown that quantitative features of the observed self-restoration phenomena in the irradiated glasses are closely related to their chemical compositions and stoichiometry.
