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4 February 1997 Radiation resistance of nonlinear LiB3O5 crystals: optical properties
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Proceedings Volume 2967, Optical Inorganic Dielectric Materials and Devices; (1997)
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia
This paper presents the results of study of the radiation stability of LiB3O5 (LBO) crystals with regard to optical properties. LBO crystals of the high optical quality were studied under action of an electron beam with energy of 0.2 - 10 MeV, x-rays, and polarized synchrotron radiation of a high intensity. Both the trapped electron (B2) and hole (O-) centers were revealed and their optical manifestations were studied in detail. In particular, the strong radiation-induced optical absorption band at lambda equals 306 nm, extending up to the spectral region of the second harmonic (at about 532 nm), was attributed to the optical transitions inside the O- center. The accumulation of defects over the dose region between 1010 and 5 multiplied by 1016 electrons per cm2 was measured. The accumulation curve at 77 K exhibits two well-defined flux regions: 1010-1014 and 1014- 1016 electrons per cm2. The paper discusses the origin of radiation degradation of LiB3O5 optical properties.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
I. N. Ogorodnikov, A. V. Kruzhalov, and A. V. Porotnikov "Radiation resistance of nonlinear LiB3O5 crystals: optical properties", Proc. SPIE 2967, Optical Inorganic Dielectric Materials and Devices, (4 February 1997);

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