摘要:
An object of the present invention is to provide an improved blank such that an optical member of a high homogeneity can be obtained therefrom, and to provide a vessel and a heat treatment method for heat-treating a highly uniform synthetic quartz blank. In a first aspect of the invention a special designed blank is provided showing a concave shaped outer surface. In a second aspect of the invention a special designed vessel for heat-treating blanks is provided, whereby the degree of heat emission at the center is set higher than that of the surroundings.
摘要:
It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.
摘要:
It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.
摘要:
It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use.The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more.
摘要:
A method for heat treating a synthetic quartz glass for optical use in a heating furnace, that comprises covering the surroundings of a synthetic quartz glass body with a SiO2 powder having a mean dissolved hydrogen molecule concentration of 1×1019 molecules/cm3 or higher, and then heat treating the body.
摘要翻译:一种用于热处理在加热炉中用于光学的合成石英玻璃的方法,其包括用平均溶解氢分子浓度为1×1019分/ cm 3或更高的SiO 2粉末覆盖合成石英玻璃体的周围,然后加热 治疗身体。
摘要:
An object of the present invention is to provide a synthetic quartz glass optical material having a high optical transmittance for a radiation 157 nm in wavelength emitted from F2 excimer laser and a high resistance against irradiation of a F2 excimer laser radiation, yet having a uniformity suitable for such a fine patterning using a F2 excimer laser, and to provide an optical member using the same. The problems above are solved by a synthetic quartz glass optical material for F2 excimer lasers having an OH group concentration of 0.5 ppm or lower, a fluorine concentration of 0.1 to 2 mol %, a hydrogen molecule concentration of 5×1016 molecules/cm3 or lower, a difference between the maximum and minimum fluorine concentrations within 20 mol ppm, and a difference between the maximum and minimum refraction indices of 2×10−5 or lower.
摘要翻译:本发明的目的是提供一种合成石英玻璃光学材料,其对于从F2准分子激光器发射的波长为157nm的辐射具有高的透光率,并且具有高的对F2准分子激光辐射照射的抗性,但具有适合的均匀性 对于使用F2准分子激光器的精细图案化,并提供使用其的光学部件。 上述问题由OH基浓度为0.5ppm以下,氟浓度为0.1〜2mol%,氢分子浓度为5×10 16分子/ cm 2的F2准分子激光的合成石英玻璃光学材料解决, 3>以下,最大和最小氟浓度在20mol ppm内的差异,以及最大和最小折射率之间的差异为2×10 -5或更低。
摘要:
An object of the present invention is to overcome the problems of the prior art technique, and to provide a heat treatment method as well as a heat treatment apparatus capable of heat treating, with higher efficiency, a synthetic quartz glass for optical use having higher homogeneity and higher purity. Another object of the present invention is to provide and a synthetic quartz glass for optical use.The problems above are solved by, in a method for heat treating a flat cylindrical synthetic quartz glass body provided as the object to be heat treated in a heating furnace, a method for heat treating a synthetic quartz glass for optical use comprising preparing a vessel made of quartz glass and having a flat cylindrical space for setting therein the object synthetic quartz glass body, placing two or more object synthetic quartz glass bodies into the vessel in parallel with each other, filling the space with SiO2 powder, setting the vessel inside the heating furnace with its lid closed, and applying the heat treatment to the vessel.
摘要:
The present invention provides an optical synthetic quartz glass material which substantially does not cause changes in transmitted wave surface (TWS) by solarization, compaction (TWS delayed), rarefaction (TWS progressed) and photorefractive effect when ArF excimer laser irradiation is applied at a low energy density, e.g. at energy density per pulse of 0.3 mJ/cm2 or less. The present invention further provides a method for manufacturing the same. In order to solve the above-mentioned problems, the optical synthetic quartz glass material of the present invention is characterized in that, in a synthetic quartz glass prepared by a flame hydrolysis method using a silicon compound as a material, the followings are satisfied that the amount of SiOH is within a range of more than 10 ppm by weight to 400 ppm by weight, content of fluorine is 30 to 1000 ppm by weight, content of hydrogen is 0.1×1017 to 10×1017 molecules/cm3 and, when the amounts of SiOH and fluorine are A and B, respectively, total amount of A and B is 100 ppm by weight or more and B/A is 0.25 to 25.
摘要翻译:本发明提供了一种光学合成石英玻璃材料,其在低温下施加ArF准分子激光照射时,通过太阳化,压实(TWS延迟),稀释(TWS进行)和光折射效应基本上不会引起透射波面(TWS)的变化 能量密度,例如 每个脉冲的能量密度为0.3mJ / cm 2以下。 本发明还提供一种制造该方法的方法。 为了解决上述问题,本发明的光学合成石英玻璃材料的特征在于,在使用硅化合物作为材料的火焰水解法制备的合成石英玻璃中,满足以下条件: SiOH的量在大于10重量ppm至400重量ppm的范围内,氟含量为30至1000重量ppm,氢含量为0.1×10 17至10 10 17分子/ cm 3,当SiOH和氟的量分别为A和B时,A和B的总量为100重量ppm以上,B / A为 0.25至25。
摘要:
In the light of the disadvantages of the prior art technology, an object of the present invention is to provide a method for producing a synthetic quartz glass member for excimer lasers, which comprises, while suppressing the generation of reductive defects which impairs the resistance against laser radiations, incorporating a sufficient amount of hydrogen molecules capable of achieving a high resistance against laser radiation into the quartz glass, yet uniformly incorporating the hydrogen molecules to realize a flat distribution in refractive indices attributed to the distribution in the density of hydrogen molecules. It is also an object of the present invention to provide a synthetic quartz glass member for excimer lasers obtained by the production method above, which yields high resistance against laser radiations and homogeneity. The above problems have been overcome by a method for producing a synthetic quartz glass member for excimer lasers, which, in a method for producing a synthetic quartz glass member for excimer laser optics comprising a step of incorporating hydrogen molecules into a synthetic quartz glass body by heat treating the synthetic quartz glass body at a temperature of 600° C. or lower under an atmosphere in a pressure range of 1 atm or higher but lower than 150 atm and containing hydrogen, said method comprises varying the pressure of the gas containing hydrogen either continuously or stepwise in at least a part of the heat treatment.
摘要:
The present invention relates to a synthetic quartz glass, which is a material for producing an optical member having an excellent excimer laser resistance, and a production method thereof with a good productivity. That is, the synthetic quartz glass produced by vitrifying glass fine particles obtained by flame hydrolysis of an organodisilazane compound directly on a substrate having a birefringence index of 5 nm/cm or less, a refractive index difference (&Dgr;n) of 2×10−6/cm or less, and an ArF saturated absorbance of 0.05/cm or less at a pulse energy density of 100 mJ/cm2/pulse. The production method thereof comprises the steps of introducing an organodisilazane compound represented by a general formula 1: (R1), SiNHSi(R2)3 (1) wherein R1 and R2 represent the same or a different alkyl group having 1 to 3 carbon atoms, into a flame comprising a combustion gas and a combustion-supporting gas to generate silica fine particles, and accumulating the silica fine particles on a rotating heat resistant substrate to be a molten glass.
摘要翻译:本发明涉及一种合成石英玻璃,其是用于制造具有优异的受激准分子激光电阻的光学部件的材料及其生产率高的生产方法。 也就是说,通过玻璃化玻璃微粒制造的合成石英玻璃,其通过有机二硅氮烷化合物直接在双折射率为5nm / cm以下的折射率(DELTAn)为2×10 -6 / cm 或更小,在脉冲能量密度为100mJ / cm 2 /脉冲下的ArF饱和吸光度为0.05 / cm以下。 其制造方法包括将由通式1表示的有机二硅氮烷化合物引入包含燃烧气体和燃烧支持的火焰的步骤中,其中R1和R2表示相同或不同的具有1至3个碳原子的烷基 气体产生二氧化硅微粒,并将二氧化硅微粒聚集在旋转的耐热基材上成为熔融玻璃。