相关实验视频
Updated: Jan 30, 2026

09:36
Measurement of Spatial Stability in Precision Grip
Published on: June 4, 2020
3.6K
对于具有绝对横向空间精度的多个高度元表面的纳米图案方法.
Eugene J H Soh1, T Thu Ha Do1, Chee Leng Lay1
1Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore.
ACS applied materials & interfaces
|January 29, 2026
概括
研究人员开发了一种新方法,用于制造具有精确高度控制的3D纳米结构. 这种技术消除了对齐错误,使得高度精确和功能性的全介电纳米结构和元表面成为可能.
科学领域:
- 纳米技术纳米技术
- 光子学是指光子学的使用方法.
- 材料科学 材料科学 材料科学
背景情况:
- 传统的光刻法 (DUV,EBL) 在2D图案中表现出色,但由于多步骤过程中的累积对齐错误,在3D准确性方面存在困难.
- 在纳米结构中实现精确的3D控制对于先进的光学和光子应用至关重要.
- 现有的方法在多层3D纳米结构的横向对齐精度方面存在局限性.
研究的目的:
- 为具有多个离散高度配置文件的全介电纳米结构提出一种新的制造战略.
- 为了实现3D纳米结构中不同层的绝对横向对齐精度.
- 为了能够创建真正的3D元面,具有决定性的空间精度和增强的光学功能.
主要方法:
- 结合了单步 lithography 和反应性离子蚀刻 (RIE).
- 通过原子力显微镜 (AFM) 采用按需,电化学控制的选择性去除金属面罩.
- 消除了多步 lithography 固有的重复对齐程序,确保纳米尺度的注册精度.
主要成果:
- 在20 × 20μm2面积上,证明了制造具有三种不同的高度配置的纳米柱阵列.
- 不同的高度形状之间没有达到可测量的横向错位.
- 观察到可调节的光学反应与受控的高度变化直接相关.
结论:
- 提出的方法为制造具有决定性空间精度的3D元表面提供了一个强大的路线.
- 这种技术通过精确控制纳米结构几何学来增强光学功能.
- 这种方法广泛适用于诸如拉纳米光子学,纳米流体学,数据存储和生物传感等领域.
相关概念视频
Absolute Value Inequalities
333
The absolute value is a mathematical tool that represents the distance of a number from zero on the number line, regardless of its sign. In the context of inequalities, absolute value expressions help define a range of permissible values or boundaries for a variable. These inequalities are commonly used in scientific modeling and data interpretation, where variability within or beyond a certain threshold must be captured precisely.An absolute value inequality of the form ∣x∣ ≤...
333
Mean Absolute Deviation
3.3K
The mean absolute deviation is also a measure of the variability of data in a sample. It is the absolute value of the average difference between the data values and the mean.
Let us consider a dataset containing the number of unsold cupcakes in five shops: 10, 15, 8, 7, and 10. Initially, calculate the sample mean. Then calculate the deviation, or the difference, between each data value and the mean. Next, the absolute values of these deviations are added and divided by the sample size to...
Let us consider a dataset containing the number of unsold cupcakes in five shops: 10, 15, 8, 7, and 10. Initially, calculate the sample mean. Then calculate the deviation, or the difference, between each data value and the mean. Next, the absolute values of these deviations are added and divided by the sample size to...
3.3K
Lateralization
1.0K
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
1.0K
Absolute and Local Extreme Values
68
The highest and lowest values of a function, relative to a reference axis, are known as extreme values. These include absolute maximum and absolute minimum values, which represent the highest and lowest points the function reaches across its entire domain. Within a restricted portion of the function, the highest and lowest values are referred to as local maximum and local minimum values, respectively.Periodic functions, such as sine and cosine, show extreme values at infinitely many points due...
68
Uncertainty in Measurement: Accuracy and Precision
100.9K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.
100.9K
Absolute Motion Analysis- General Plane Motion
560
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
560

