Thick, three-dimensional nanoporous density-graded materials formed by optical exposures of photopolymers with controlled levels of absorption

Yun-Suk Nam; Seokwoo Jeon; Daniel Jay-Lee Shir; Alex Hamza; John A. Rogers

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Thick, three-dimensional nanoporous density-graded materials formed by optical exposures of photopolymers with controlled levels of absorption

机译：厚的三维纳米多孔密度分级材料，由具有受控吸收水平的光聚合物经光学曝光形成

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Three-dimensional (3D) intensity distributions generated by light passing through conformal phasemasks can be modulated by the absorption property of photosensitive materials. The intensity distributions have extremely long depth of focus, which is proportional to the size of the phase masks, and this enables one to pattern thick (approx100 (mu)m), nanoporous structures with precise control of grade density. Various density-graded 3D structures that result from computational modeling are demonstrated. Results of x-ray radiograph and the controlled absorption coefficient prove the dominant mechanism of the generated graded density is absorption of the photosensitive materials. The graded-density structures can be applied to a chemical reservoir for controlled release of chemicals and laser target reservoirs useful to shape shockless wave compression.

机译：由光通过保形相位掩模产生的三维（3D）强度分布可以通过光敏材料的吸收特性进行调节。强度分布具有非常长的焦点深度，与景物掩模的大小成正比，这使人们可以对厚度（约100μm）的纳米多孔结构进行图案化，并精确控制梯度密度。演示了由计算建模得到的各种密度渐变3D结构。 X射线照相的结果和受控的吸收系数证明了产生的梯度密度的主要机理是光敏材料的吸收。渐变密度结构可以应用于化学药品的储存库，以控制化学药品的释放;激光目标储存库可用于无冲击波压缩。

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《Applied optics》 |2007年第25期|共5页
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Yun-Suk Nam; Seokwoo Jeon; Daniel Jay-Lee Shir; Alex Hamza; John A. Rogers;
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2. 对甲醇氧化具有增强效应的三维纳米多孔Pd/Co2O3复合材料的简单制备 [J] . 宋衍滟, 段栋, 时文宇, 中国有色金属学报：英文版 . 2018,第004期
3. Thick, three-dimensional nanoporous density-graded materials formed by optical exposures of photopolymers with controlled levels of absorption [J] . Yun-Suk Nam, Sebkwoo Jeon, Daniel Jay-Lee Shir, Applied Optics . 2007,第25期

机译：厚的三维纳米多孔密度分级材料，由具有受控吸收水平的光聚合物经光学曝光形成
4. Three dimensional nanoporous density graded materials formed by optical exposures through conformable phase masks [J] . Seokwoo Jeon, Yun-Suk Nam, Daniel Jay-Lee Shir, Applied Physics Letters . 2006,第25期

机译：三维纳米多孔密度梯度材料，其通过适形相位掩模的光学曝光形成
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机译：了解纳米多孔材料的能量吸收行为

Thick, three-dimensional nanoporous density-graded materials formed by optical exposures of photopolymers with controlled levels of absorption

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