Light-induced backward scattering in LiNbO3:Fe,Zn

Wu, Qiang; Xu, Jingjun; Sun, Quan; Zhang, Xinzheng; Qiao, Hao; Tang, Baiquan; Zhang, Gunangyin; Gu, Miṅ

doi:10.1063/1.1529083

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Photorefractive Materials1

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2005

2008

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Cited by 5 publications

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“…They can be overcome by doping with [19,20]. Compared with F e:LiN bO 3 crystal, concentration decreasing of N bLi +4 in Zn:F e:LiN bO 3 crystal improves the ability of optical damage resistance and shortens the response time [21,22]. Furthermore, the reduction treatment on the Zn:F e:LiN bO 3 changes the concentrations of F e +2 , F e +3 and [NvLi] +4 and improves its photorefractive properties [23,24].…”

Section: Photorefractive Materialsmentioning

confidence: 99%

Multi-Wavelengths Optical Switching and Tunable Filters Using Dynamic Superimposed Photorefractive Bragg Grating

Moghimi¹,

Ghafoorifard²,

Rostami³

2008

PIER C

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We present a new scheme for all optical multi-wavelengths switching and filtering using photorefractive materials to route optical signals without converting to electronic state. For this purpose the photorefractive effect which is a nonlinear optical effect seen in certain crystals and other materials that respond to light by altering their refractive index is used. When a photorefractive material is illuminated by patterned command light of intensity I(x), a dynamic superimposed Bragg grating can be obtained which is used for optical multi-wavelength switching and filtering purposes.

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Section: Photorefractive Materialsmentioning

confidence: 99%