Journal ArticleDOI
Radiation resistance diagnostics of wide-gap optical materials
Eduard Feldbach,Eliko Tõldsepp,Marco Kirm,Aleksandr Lushchik,Kenichiro Mizohata,Jyrki Räisänen +5 more
Reads0
Chats0
TLDR
In this paper, a novel approach in the detection of radiation damage created by ion beams in optical materials was demonstrated, using the spectra of cathodoluminescence excited in the irradiated layer by an electron beam with adjustable energy.About:
This article is published in Optical Materials.The article was published on 2016-05-01. It has received 35 citations till now. The article focuses on the topics: Radiation resistance & Cathodoluminescence.read more
Citations
More filters
Journal ArticleDOI
Creation and thermal annealing of structural defects in neutron-irradiated MgAl 2 O 4 single crystals
Aleksandr Lushchik,S. Dolgov,Eduard Feldbach,R. Pareja,Anatoli I. Popov,E. Shablonin,V. Seeman +6 more
TL;DR: In this paper, the thermal annealing process of hole-type and complementary electron F-type defects in fast neutron irradiated MgAl2O4 crystals using the EPR method was compared to that of radiation induced optical absorption in the same crystals.
Journal ArticleDOI
Fast-neutron-induced and as-grown structural defects in magnesium aluminate spinel crystals with different stoichiometry
V. Seeman,Eduard Feldbach,Tiit Kärner,Aarne Maaroos,Nina Mironova-Ulmane,Anatoli I. Popov,E. Shablonin,Evgeni Vasil'chenko,Aleksandr Lushchik +8 more
TL;DR: In this paper, hole-type paramagnetic defects (a hole localized at a regular oxygen ion near charged structural defect/defects) have been revealed in fast-neutron-irradiated MgO⋅2.5Al2O3 single crystals using the EPR method.
Journal ArticleDOI
Theoretical analysis of the kinetics of low-temperature defect recombination in alkali halide crystals
V. N. Kuzovkov,Anatoli I. Popov,Eugene A. Kotomin,A. Moskina,Evgeni Vasil'chenko,Aleksandr Lushchik +5 more
TL;DR: In this article, the experimental kinetics of the low-temperature diffusion-controlled F, H center recombination in a series of irradiated alkali halides and extracted the migration energies and pre-exponential parameters for the hole H centers.
Journal ArticleDOI
Tendencies in ABO3 Perovskite and SrF2, BaF2 and CaF2 Bulk and Surface F-Center Ab Initio Computations at High Symmetry Cubic Structure
TL;DR: The shift sizes of atoms adjoining the bulk and surface F-centers in SrF2, CaF2 and BaF2 matrixes are microscopic as compared to the case of ABO3 perovskites.
Journal ArticleDOI
Optical characteristics of virgin and proton-irradiated ceramics of magnesium aluminate spinel
Eduard Feldbach,I. Kudryavtseva,Kenichiro Mizohata,Gatis Prieditis,Jyrki Räisänen,E. Shablonin,Aleksandr Lushchik +6 more
TL;DR: In this paper, the authors investigated the properties of optical ceramics of MgAl2O4 by means of low-temperature cathodo-, photo-and thermo-luminescence methods.
References
More filters
Journal ArticleDOI
CASINO V2.42: a fast and easy-to-use modeling tool for scanning electron microscopy and microanalysis users.
Dominique Drouin,Alexandre Réal Couture,Dany Joly,Xavier Tastet,Vincent Aimez,Raynald Gauvin +5 more
TL;DR: The intent of this software is to assist scanning electron microscope users in interpretation of imaging and microanalysis and also with more advanced procedures including electron-beam lithography.
Journal ArticleDOI
Optical properties of the F + center in crystalline Al 2 O 3
B. D. Evans,M. Stapelbroek +1 more
TL;DR: In this paper, a 14-MeV neutron-irradiated high-purity crystalline (14-meV NIR) high-Purity (HPI) crystalline NIR was presented for ultraviolet optical absorption, emission, and excitation spectra for the 3.8 and 5.4 eV bands.
Journal ArticleDOI
Electron centers in single-crystal Al 2 O 3
K. H. Lee,J. H. Crawford +1 more
TL;DR: In this paper, the two prominent absorption bands centered at 6.1 and 4.8 eV in neutron-bombarded single crystals have been investigated and the oscillator strength was found to be in the range 0.5-1 as compared to a value nearly twice that for the 6. 1 eV band.
Journal ArticleDOI
F + and F ′ Centers in Magnesium Oxide
TL;DR: In this article, single crystals of MgO have been additively colored by heating them in Mg vapor at temperatures from 1600 to 1800\ifmmode^\circ\else\text degree\fi{}C and pressures up to 4000 Torr.
Journal ArticleDOI
Self-trapping and multiplication of electronic excitations in Al 2 O 3 and Al 2 O 3 : S c crystals
TL;DR: In this article, the processes of intrinsic and extrinsic luminescence excitation by synchrotron radiation of 4\char21{}40 eV or electron pulses have been studied in single crystals at 8 K.
Related Papers (5)
Visible photoluminescence from MgAl2O4 spinel with cation disorder and oxygen vacancy
Shigeto Sawai,Takashi Uchino +1 more