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    • 1. 发明授权
    • Optical parametric diffuser
    • 光学参数扩散器
    • US5940206A
    • 1999-08-17
    • US813907
    • 1997-03-07
    • Kenji KurodaHideki Takakura
    • Kenji KurodaHideki Takakura
    • G02F1/35H01S5/50G02F1/39
    • H01S5/50G02F1/3536H01S5/5054
    • An optical parametric diffuser is provided with an optical mixer which receives inputs of a probe light of a wavelength .lambda..sub.1 and a pumping light of a wavelength .lambda..sub.2, multiplexes them, and generates an output signal light including a wavelength .lambda..sub.5 which is apart from the pumping light wavelength on the opposite side of the probe light wavelength by n.DELTA..lambda. (.DELTA..lambda.=.vertline..lambda..sub.1 -.lambda..sub.2 .vertline., n.gtoreq.2). The signal of a wavelength .lambda..sub.5 is then extracted by a band-pass filter. The optical mixer is made to have a peak in output signal generation efficiency at the wavelength .lambda..sub.5 so that an output light beam of the wavelength .lambda..sub.5 can be obtained from the probe light and the pumping light.
    • 光学参数漫射器设置有光学混合器,其接收波长λ1的探测光和波长λ2的泵浦光的输入,将其复用,并产生包括波长λ5的输出信号光 在探针光波长相反侧的泵浦光波长为n DELTAλ(DELTAλ= |λ1-λ2 |,n> / = 2)。 然后通过带通滤波器提取波长λ5的信号。 使得光学混合器在波长λ5处具有输出信号产生效率的峰值,使得可以从探测光和泵浦光获得波长λ5的输出光束。
    • 6. 发明授权
    • Method of manufacturing ultra-black film
    • 制造超薄膜的方法
    • US5074957A
    • 1991-12-24
    • US595608
    • 1990-10-11
    • Masao HoriutiShunichi KodamaKenji Kuroda
    • Masao HoriutiShunichi KodamaKenji Kuroda
    • C23C18/36
    • C23C18/36Y10S362/80
    • An ultra-black film is disclosed, which essentially consists of a base, a Ni-P alloy layer formed on said base and a phosphate layer formed on said Ni-P layer, the spectral reflectance of said ultra-black film being 0.04 to 0.4%. The ultra-black film is obtainable by one of four methods, i.e., a first method, which comprises sequential steps of effecting primary etching of a Ni-P alloy film surface with an aqueous nitric acid solution and effecting secondary etching of the surface with an aqueous sulfuric-acid-containing nitrate solution, a second method, which comprises of effecting said secondary etching of a Ni-P alloy film surface a third method, which comprises sequential steps of forming a Ni-P alloy film on a base by using a plating solution basically composed of nickel salt, sodium hypophosphite, D, L-malic acid and malonic acid and effecting said secondary etching to the alloy film surface and a fourth method, which comprises sequential steps of forming a Ni-P alloy film on a base by using a plating solution basically composed of nickel salt, sodium hypophosphite, D, L-malic acid and succinic acid or basically composed of nickel salt, sodium hypophosphite, D, L-malic acid lactic acid and malonic acid and effecting said primary etching to the surface.