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    • 1. 发明申请
    • Method for processing transparent material, apparatus for processing the same and optical function device
    • 透明材料处理方法及其加工装置及光学功能装置
    • US20050271349A1
    • 2005-12-08
    • US11087740
    • 2005-03-24
    • Minoru ObaraMasanao KamataTetsuya Nagata
    • Minoru ObaraMasanao KamataTetsuya Nagata
    • G02B6/13G02B6/00G02B6/12G02B6/122
    • G02B6/13G02B6/12002
    • The invention provides a method for processing a transparent material, which is applicable to universal materials and by which the propagation loss of an optical function device produced by changing the refractive index is slight. Femtosecond laser pulses are condensed by a lens, and a glass material being fused quartz is relatively moved, wherein a waveguide is formed by forming a continuous high refractive index area. Prior art optical pulses depicted in FIG. 1(a) are one-by-one femtosecond laser pulses at a pulse interval which is slightly shorter or longer than a thermal diffusion time (1 μs) of a substance. Optical pulses according to the invention, which are depicted in FIG. 1(b) are irradiated while using, as a set, two femtosecond laser pulses with a pulse interval which is around the electron lattice energy relaxation time (1 through 100 ps) of a substance.
    • 本发明提供了一种可应用于通用材料的透明材料的处理方法,通过改变折射率而产生的光学功能元件的传播损耗很小。 飞秒激光脉冲被透镜冷凝,并且熔融石英的玻璃材料相对移动,其中通过形成连续的高折射率区域形成波导。 图1所示的现有技术的光脉冲 图1(a)是以比物质的热扩散时间(1微米)稍短或更长的脉冲间隔的逐个飞秒激光脉冲。 根据本发明的光脉冲,其在图1中示出。 如图1(b)所示,在以物质的电子晶格能量弛豫时间(1〜100ps)附近的脉冲间隔为2个飞秒激光脉冲的情况下照射。
    • 3. 发明授权
    • Method for processing transparent material, apparatus for processing the same and optical function device
    • 透明材料处理方法及其加工装置及光学功能装置
    • US07257294B2
    • 2007-08-14
    • US11087740
    • 2005-03-24
    • Minoru ObaraMasanao KamataTetsuya Nagata
    • Minoru ObaraMasanao KamataTetsuya Nagata
    • G02B6/34
    • G02B6/13G02B6/12002
    • The invention provides a method for processing a transparent material, which is applicable to universal materials and by which the propagation loss of an optical function device produced by changing the refractive index is slight. Femtosecond laser pulses are condensed by a lens, and a glass material being fused quartz is relatively moved, wherein a waveguide is formed by forming a continuous high refractive index area. Prior art optical pulses depicted in FIG. 1(a) are one-by-one femtosecond laser pulses at a pulse interval which is slightly shorter or longer than a thermal diffusion time (1 μs) of a substance. Optical pulses according to the invention, which are depicted in FIG. 1(b) are irradiated while using, as a set, two femtosecond laser pulses with a pulse interval which is around the electron lattice energy relaxation time (1 through 100 ps) of a substance.
    • 本发明提供了一种可应用于通用材料的透明材料的处理方法,通过改变折射率而产生的光学功能元件的传播损耗很小。 飞秒激光脉冲被透镜冷凝,并且熔融石英的玻璃材料相对移动,其中通过形成连续的高折射率区域形成波导。 图1所示的现有技术的光脉冲 图1(a)是以比物质的热扩散时间(1微米)稍短或更长的脉冲间隔的逐个飞秒激光脉冲。 根据本发明的光脉冲,其在图1中示出。 如图1(b)所示,在以物质的电子晶格能量弛豫时间(1〜100ps)附近的脉冲间隔为2个飞秒激光脉冲的情况下照射。
    • 4. 发明申请
    • PLASMON WAVEGUIDE AND OPTICAL ELEMENT USING THE SAME
    • 使用它的PLASMON波导和光学元件
    • US20110103742A1
    • 2011-05-05
    • US13002567
    • 2009-06-22
    • Minoru ObaraSatoshi Omodani
    • Minoru ObaraSatoshi Omodani
    • G02B6/26G02B6/02
    • G02B6/1226B82Y20/00
    • Disclosed is a plasmon waveguide including cladding (2) consisted of metal, and a dielectric core (3) which is formed of a transparent material, surrounded by or sandwiched by the cladding (2), and has at least one cross-section having a thickness no more than the wavelength of the incident light. The plasmon waveguide is provided with: a incident-side plasmon waveguide (4) into which light (L) is incident; an emission-side plasmon waveguide (5) from which light (L) is emitted; a connection portion (6) connecting the incident-side plasmon waveguide (4) and emission-side plasmon waveguide (5); and a plasmon interference structure (7) which extends from the connection portion (6) in the direction intersecting the incident-side plasmon waveguide (4) or the emission-side plasmon waveguide (5), and has a terminal (7a) at which light (L) is reflected.
    • 公开了包括由金属构成的包层(2)的等离子体波导和由透明材料形成的介电芯(3),由包层(2)包围或夹在其中,并具有至少一个具有 厚度不超过入射光的波长。 等离子体波导设置有:入射侧的等离子体波导(4),光(L)入射到其中; 发射光(L)的发射侧等离子体波导(5); 连接入射侧等离子体波导(4)和发射侧等离子体波导(5)的连接部(6)。 以及等离子体激元干涉结构(7),其从连接部分(6)沿与入射侧等离子体波导(4)或发射侧等离子体激元波导(5)相交的方向延伸,并且具有端子(7a),在该端子 光(L)被反射。