The Experts below are selected from a list of 44646 Experts worldwide ranked by ideXlab platform
S. Rochkind - One of the best experts on this subject based on the ideXlab platform.
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Central nervous system transplantation benefitted by low-Power Laser irradiation
Lasers in Medical Science, 1992Co-Authors: S. RochkindAbstract:The effect of low-Power Laser irradiation on mammalian central nervous system (CNS) transplantation is reported. Fetal brain allografts were transplanted into the brain (fornix region) of 20 adult rats and spinal cord allografts were transplanted into the spinal cord of eight dogs. For 21 days, the closed operated wounds of 10 rats and four dogs were exposed daily to transcutaneous low-Power Laser irradiation cw HeNe Laser (16 mW, 632.8 nm, spot size 2 mm2, energy density of 30 J cm−2 for rats and 70 J cm−2 for dogs). This study shows that the low-Power Laser irradiation prevents extensive glial scar formation (a limiting factor in CNS regeneration) between neural transplants and host brain or spinal cord. Abundant capillaries developed in the Laser-irradiated transplants, this being of crucial importance for their survival. The results of the present study and our previous investigations suggest that low-Power Laser irradiation is a novel tool for treatment of CNS injuries and disorders.
Kazunori Shinoda - One of the best experts on this subject based on the ideXlab platform.
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Beam-shaping technique for improving the beam quality of a high-Power Laser-diode stack
Optics Letters, 2006Co-Authors: Xin Gao, Masaomi Takasaka, Hiroyuki Ohashi, Hiroshi Okamoto, Kazunori ShinodaAbstract:We report a beam-shaping technique that reconfigures the beams to improve the beam quality and enhance the Power density for a ten-array high-Power Laser-diode stack by using two optical rectangular cubes and two stripe-mirror plates. The reshaped beam has threefold improvement in beam quality, and its Power density is effectively enhanced. On the basis of this technique, we focus the beam of the high-Power Laser-diode stack to effectively end pump a high-Power fiber Laser.
Yutian Lu - One of the best experts on this subject based on the ideXlab platform.
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Micro-prism stack beam shaper for high Power Laser diode array
Guangxue Xuebao Acta Optica Sinica, 2000Co-Authors: Peng Shi, Guifen Zhang, Minggxiu Guo, Xiaoli Li, Yutian LuAbstract:Semiconductor Laser has the advantage of high electrooptical conversion efficiency, narrow bandwidth, Laser beam energy concentration and high stability, but its optical field distribution is asymmetrical, diode array is needed. A micro-prism stack was developed for beam shaping of high Power Laser diode array, and the 600 μm diameter fiber coupled Laser diode array output was obtained. The overall efficiency is more than 50%. The approach requires simple machining and alignment. The principle of micro-prism stack was explained.
Xin Gao - One of the best experts on this subject based on the ideXlab platform.
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Beam-shaping technique for improving the beam quality of a high-Power Laser-diode stack
Optics Letters, 2006Co-Authors: Xin Gao, Masaomi Takasaka, Hiroyuki Ohashi, Hiroshi Okamoto, Kazunori ShinodaAbstract:We report a beam-shaping technique that reconfigures the beams to improve the beam quality and enhance the Power density for a ten-array high-Power Laser-diode stack by using two optical rectangular cubes and two stripe-mirror plates. The reshaped beam has threefold improvement in beam quality, and its Power density is effectively enhanced. On the basis of this technique, we focus the beam of the high-Power Laser-diode stack to effectively end pump a high-Power fiber Laser.
Ben Wilson - One of the best experts on this subject based on the ideXlab platform.
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Low Power Laser Induced Microfluidic Mixing Through Localized Surface Plasmon
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007Co-Authors: Xiaoyu Miao, Ben WilsonAbstract:We present a new optical microfluidic mixing approach via surface tension driven force sustained by the localized surface plasmon (LSP) energy. The phonon energy associated with the non-radiative damping of LSP on an Au nanostructure creates thermal gradients capable of actuating a convective fluid flow. Experimental evidence and modeling results both show that LSP from the Au nanostructure is crucial to establish a temperature gradient with sufficient magnitude to induce the convective flow when using a low- Power Laser source.
