Temperature enhancement of the photorefractive sensitivity of BSO and BGO

Powell, M. A.; Petts, C.R.

doi:10.1364/ol.11.000036

Cited by 17 publications

(2 citation statements)

References 3 publications

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“…In our experiment, the build-up time of the grating (τ=5.5 ms) and laser power of 40 µW (a diameter of 2.5 mm) lead to an estimated photorefractive sensitivity of 2.2 cm 3 /J. This value is remarkably high compared with some other photorefractive materials, which are usually in the order of 10 −2 to 10 −3 cm 3 /J [27,28]. For comparison, we also fabricate two other kinds of cell configurations.…”

Section: Photorefractive Sensitivitymentioning

confidence: 64%

Highly photorefractive hybrid liquid crystal device for a video-rate holographic display

Xiang

et al. 2016

Opt. Express

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In this paper, we demonstrate a dynamic holographic display in a quantum dot (ZnS/InP) doped liquid crystal device, where one of the interior cell surfaces is covered by a ZnSe layer. Such a hybrid device shows substantially improved photorefractive sensitivity of 2.2 cm³/J, which is almost 300 times larger than that in ZnS/InP doped liquid crystal device without the ZnSe layer. The holographic grating can form at intensities as low as ~0.8 mW/cm², and exhibit a fast optical response of several to tens of milliseconds. Exploiting the superior performances of photosensitivity and fast response of this device, we obtain dynamic holographic videos of red, green, and blue colors, as well as a reconstructed image of high gray-scale fidelity.

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Section: Photorefractive Sensitivitymentioning

confidence: 64%

Highly photorefractive hybrid liquid crystal device for a video-rate holographic display

Xiang

et al. 2016

Opt. Express

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“…The BSO crystal photorefractive effect is shown in Fig.1.It has been reported that typical diffusing length L D is 0.5um and drifting length L P is 10um in 10KV/cm applied electric field [1]. The two length are usually larger than holographic diffraction grating constant, so BSO crystal appears the highest photo-sensitivity in all given crystals up to 300uJ/cm 2 ( wavelength: 514nm; grating constant: 5um) as four times as LiNbO 3 crystal in the same conditions [2,3].…”

Section: Introductionmentioning

confidence: 99%

The growth and photorefractive effect of co‐doped Ce:Cu:BSO crystals

Zheng¹,

Zhang

Zhao

et al. 2003

Cryst. Res. Technol.

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In the paper Ce:Cu:BSO crystal has been grown by Czochralski method for the first time with doping CeO 2 and CuO into BSO(Bi 12 SiO 20 ) crystal. The exponential gain coefficient and respond time of Ce:Cu:BSO crystal are measured by two-wave-coupling technology. The results indicate that exponential gain coefficient of Ce:Cu:BSO is more than two times as that of non-doped BSO and the response time exhibits in microsecond level. Furthermore its exponential gain coefficient improves greatly compared with Ce:BSO's at the same doping level of Ce, while its response time is less than Ce:BSO's. The improvement mechanism of photorefractive effect of Ce:Cu:BSO crystal is investigated systematically.

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79‐3: Video‐rate Holographic Display in ZnSe layer‐assisted Quantum Dot Doped Liquid Crystal with High‐photorefractive Sensitivity

Song

et al. 2017

Symp Digest of Tech Papers

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In this paper, we demonstrate a dynamic holographic display in ZnS/InP doped liquid crystal with assistance of ZnSe layer. The photorefractive effect of the hybrid cell is investigated. The response time of several to tens of milliseconds is measured with very low recording intensity (1 mW/cm2) at 460 nm. The photosensitivity S of the hybrid LC cell is measured up to 2.2 cm3/J. After a characterization of the hybrid LC cell in terms of the recording laser power, we demonstrate holographic videos of red, green, and blue colors at a refresh rate of 25 Hz.

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Temperature enhancement of the photorefractive sensitivity of BSO and BGO

Cited by 17 publications

References 3 publications

Highly photorefractive hybrid liquid crystal device for a video-rate holographic display

Highly photorefractive hybrid liquid crystal device for a video-rate holographic display

The growth and photorefractive effect of co‐doped Ce:Cu:BSO crystals

79‐3: Video‐rate Holographic Display in ZnSe layer‐assisted Quantum Dot Doped Liquid Crystal with High‐photorefractive Sensitivity

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