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  1. No Access

    Article

    +c–face incident pentagon mutually pumped phase conjugator

    The mutually pumped phase conjugator with +c-face incident geometry is first demonstrated in a photorefractive pentagon-shaped 0°-cut BaTiO3 crystal. Designed by choosing the appropriate geometry such as the orie...

    C.C. Chang, H.F. Yau, T.C. Chen, C.C. Sun, P.X. Ye in Applied Physics B (2004)

  2. No Access

    Article

    Fabrication of high-aspect-ratio sub-diffraction-limit microstructures by two-photon-absorption photopolymerization

    Micro-cell structures with side-walls as thin as 0.70 μm and aspect ratios as high as 6.7 are fabricated by single-layer writing through two-photon-absorption (TPA) photopolymerization. The use of a moderate-n...

    E.-Y. Pan, N.-W. Pu, Y.-P. Tong, H.-F. Yau in Applied Physics B (2003)

  3. No Access

    Article

    Fast response self-pumped phase conjugator based on a +c-face incident configuration in a pentagon-shaped BaTiO3 crystal

    We propose a novel geometry for a self-pumped phase conjugator that uses a +c-face incident configuration in a photorefractive pentagon-shaped 0°-cut BaTiO3 crystal for obtaining fast response in phase conjugatio...

    L.C. Tang, C.C. Chang, T.C. Chen, H.F. Yau, P.X. Ye in Optical and Quantum Electronics (2002)

  4. No Access

    Article

    Mutually pumped phase conjugator using a BaTiO3 crystal having two inclined faces

    A pentagon-shaped undoped BaTiO3 crystal was used to construct a high-quality mutually pumped phase conjugator. It yields two very stable phase-conjugate outputs (±1.7% fluctuation in intensity) with high reflect...

    C.C. Chang, Y.P. Tong, T.C. Chen, H.F. Yau, P.X. Ye in Applied Physics B (2000)

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    Article

    Incoherent all-optical NAND-, NOR-, and XOR-gate using photorefractive fanning effect

    An all-optical computing device is proposed to perform incoherent digital operations, including the NAND, NOR, and XOR gates. Instead of using interferometer-based methods, making use of self-generating noise ...

    H.-F. Yau, H.-Y. Lee, N.-J. Cheng in Applied Physics B (1999)