Optical and holographic properties of Fe+Mn co-doped Bi4Ge3O12 crystals

Vera Marinova; Dimitrina Petrova; Shiuan-Huei Lin; Ken-Yuh Hsu

doi:10.1016/j.optcom.2007.09.003

Optical and holographic properties of Fe+Mn co-doped Bi₄Ge₃O₁₂ crystals

Vera Marinova^*, Dimitrina Petrova, Shiuan-Huei Lin, Ken-Yuh Hsu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The effect of iron and manganese co-doping on the light-induced, dark- and photoconductivity and holographic properties of Bi₄Ge₃O₁₂ crystals in comparison with Fe- and Mn-single doping is studied. Fe+Mn co-doped crystals exhibited strong photochromic effect at room temperature, the photochromic effect being fully reversible by thermal annealing. The observed light-induced absorption changes and non-linear dependence of photoconductivity on light intensities indicate deep and shallow photoactive levels contribution to the charge transport mechanism of Fe+Mn co-doped BGO. Holographic gratings are successfully recorded at different wavelengths and a possibility to extend the photorefractive sensitivity into the red spectral range is demonstrated. It is found furthermore that Fe+Mn-doping combination leads to faster response time during holographic recording, especially after a preliminary exposure with ultraviolet light, in comparison with Fe- and Mn-single doping.

Original language	English
Pages (from-to)	37-43
Number of pages	7
Journal	Optics Communications
Volume	281
Issue number	1
DOIs	https://doi.org/10.1016/j.optcom.2007.09.003
State	Published - 1 Jan 2008

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10.1016/j.optcom.2007.09.003

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title = "Optical and holographic properties of Fe+Mn co-doped Bi4Ge3O12 crystals",

abstract = "The effect of iron and manganese co-doping on the light-induced, dark- and photoconductivity and holographic properties of Bi4Ge3O12 crystals in comparison with Fe- and Mn-single doping is studied. Fe+Mn co-doped crystals exhibited strong photochromic effect at room temperature, the photochromic effect being fully reversible by thermal annealing. The observed light-induced absorption changes and non-linear dependence of photoconductivity on light intensities indicate deep and shallow photoactive levels contribution to the charge transport mechanism of Fe+Mn co-doped BGO. Holographic gratings are successfully recorded at different wavelengths and a possibility to extend the photorefractive sensitivity into the red spectral range is demonstrated. It is found furthermore that Fe+Mn-doping combination leads to faster response time during holographic recording, especially after a preliminary exposure with ultraviolet light, in comparison with Fe- and Mn-single doping.",

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T1 - Optical and holographic properties of Fe+Mn co-doped Bi4Ge3O12 crystals

AU - Marinova, Vera

AU - Petrova, Dimitrina

AU - Lin, Shiuan-Huei

AU - Hsu, Ken-Yuh

PY - 2008/1/1

Y1 - 2008/1/1

N2 - The effect of iron and manganese co-doping on the light-induced, dark- and photoconductivity and holographic properties of Bi4Ge3O12 crystals in comparison with Fe- and Mn-single doping is studied. Fe+Mn co-doped crystals exhibited strong photochromic effect at room temperature, the photochromic effect being fully reversible by thermal annealing. The observed light-induced absorption changes and non-linear dependence of photoconductivity on light intensities indicate deep and shallow photoactive levels contribution to the charge transport mechanism of Fe+Mn co-doped BGO. Holographic gratings are successfully recorded at different wavelengths and a possibility to extend the photorefractive sensitivity into the red spectral range is demonstrated. It is found furthermore that Fe+Mn-doping combination leads to faster response time during holographic recording, especially after a preliminary exposure with ultraviolet light, in comparison with Fe- and Mn-single doping.

AB - The effect of iron and manganese co-doping on the light-induced, dark- and photoconductivity and holographic properties of Bi4Ge3O12 crystals in comparison with Fe- and Mn-single doping is studied. Fe+Mn co-doped crystals exhibited strong photochromic effect at room temperature, the photochromic effect being fully reversible by thermal annealing. The observed light-induced absorption changes and non-linear dependence of photoconductivity on light intensities indicate deep and shallow photoactive levels contribution to the charge transport mechanism of Fe+Mn co-doped BGO. Holographic gratings are successfully recorded at different wavelengths and a possibility to extend the photorefractive sensitivity into the red spectral range is demonstrated. It is found furthermore that Fe+Mn-doping combination leads to faster response time during holographic recording, especially after a preliminary exposure with ultraviolet light, in comparison with Fe- and Mn-single doping.

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DO - 10.1016/j.optcom.2007.09.003

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SP - 37

EP - 43

JO - Optics Communications

JF - Optics Communications

IS - 1

ER -

Optical and holographic properties of Fe+Mn co-doped Bi₄Ge₃O₁₂ crystals

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