Optical properties of zinc borate glasses

Ivankov, A. F.; Seekamp, J.; Bauhofer, W.

doi:10.1016/s0167-577x(00)00370-0

Cited by 25 publications

(15 citation statements)

References 12 publications

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“…We have recently discussed the nature of the emission from undoped [10] and europium-doped [11] zinc borate glasses. We assume that [Zn(II))] x -[O(-II)] y centers are responsible for the emission process in these glasses, while the stochiometric composition is not known.…”

Section: Excitation Spectramentioning

confidence: 99%

“…Shape and energy position of these excitation bands are very similar to the excitation band of Eu 3+ in Eu 2 O 3 . This could indicate that the increase of Eu 3+ concentration in glass leads to a decreasing glass host excitation probability due to a predominance of charge transfer absorption [11].…”

Section: Excitation Spectramentioning

confidence: 99%

“…A waveguide structure of Eu 3+ : ZBG can convert the incoming UV light into visible light and concentrates and guides it to a silicon photodiode [9]. The optical properties of the undoped [10] and europium-doped [11] ZBG were recently discussed by us.…”

Section: Introductionmentioning

confidence: 99%

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Selective UV Detector as a Combination of Waveguide Structures of Eu3+-Doped Zinc Borate Glasses with Si Photodiode

Ivankov

Bauhofer

2001

phys. stat. sol. (a)

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Subject classification: 78.20.Ci; 78.55.Hx; S10.15 Selective, low cost ultraviolet detectors with a sensitivity of up to 3 mA/W in the UVC energy range were fabricated by means of Eu 3+ -doped zinc borate glass (ZBG) fibers and Si-photodiodes. Europium-doped ZBG shows highly efficient emission (613 nm) from Eu 3+ by irradiation with high-energy UV light. The Eu 3+ -doped ZBG fiber converts the incoming UV light into visible light of 613 nm and guides it to a silicon photodiode. Eu 3+ -doped ZBG fibers Zn x B 1--x O 1.5--0.5x of varying composition (x = 0.33-0.52) were produced by the melt spinning method from glass melt in air atmosphere. The fibers were then connected to the silicon photodiode surface. The wavelength of maximum sensitivity of our detector is in the far ultraviolet and can be varied between 240 and 270 nm by changing the Zn content in the glass matrix.

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Section: Excitation Spectramentioning

confidence: 99%

Section: Excitation Spectramentioning

confidence: 99%

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Selective UV Detector as a Combination of Waveguide Structures of Eu3+-Doped Zinc Borate Glasses with Si Photodiode

Ivankov

Bauhofer

2001

phys. stat. sol. (a)

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“…The spectra indicated three absorptions in the 200-400 nm range: the main one at 224.5 nm and the other two at 284.5 and 378.5 nm on the shoulder. Comparison of the spectra with those of zinc-borate glasses, these absorptions mainly contribute to the network ions which are coordinated by zinc atom [17]. In the wide range of 300-3000 nm, the sample with 5 Â 5 Â 6 mm 3 possesses over 80% transmission, which shows one of its good optical characters.…”

mentioning

confidence: 92%

Studies on new NLO crystals in CdO–ZnO–B2O3 system

Yuan

Shen

Wang

et al. 2006

Journal of Crystal Growth

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“…Manganese borate glasses are versatile because of its chemical properties like large variety of oxidation states [7,8,9,10,11]. Manganese exists in different valence states with different coordination in glass matrices and the study of which with the existence of different valence states in the glass matrix depend upon the qualitative properties of modifiers, glass formers, size of the ions in the glass structure, their field strength and mobility of the modifier cation etc.…”

Section: Introductionmentioning

confidence: 99%