相关实验视频
Updated: Jul 18, 2026
11:23
Lensless Fluorescent Microscopy on a Chip
Published on: August 17, 2011
来自无向介电镜镜面纤维的外部反射
Shandon D Hart1, Garry R Maskaly, Burak Temelkuran
1Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Science (New York, N.Y.)
|April 20, 2002
概括
研究人员使用多层方法创建了新的介电镜面纤维. 这些纤维具有高反射性,为先进的辐射屏障和光学过器铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 光学是什么?光学是什么?光学是什么?
- 光子学 是一个光子学.
背景情况:
- 介电镜是重要的光学元件.
- 开发灵活和坚固的介电镜仍然是一个挑战.
研究的目的:
- 设计和制造多层介电镜面纤维.
- 描述延长纤维长度的光学特性.
- 探索这些新型纤维的潜在应用.
主要方法:
- 制造一个多层宏观纤维预成型,其中有21个交替的玻璃材料层,具有不同的折射率.
- 将预制件绘制成延长的纤维长度,具有亚微米层厚度.
- 光学表征以评估反射效率和光子带间隙.
主要成果:
- 成功制造出具有亚微米厚度的全向介电镜镜纤维.
- 实现了大的定向光子带间隙.
- 证明了与金属反射器相比较的高反射效率.
结论:
- 开发的介电镜纤维为光学应用提供了一个有前途的新材料.
- 潜在的应用包括辐射屏障,光谱认证和电信过器.
相关概念视频
01:05Total Internal Reflection Fluorescence Microscopy
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
01:13Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
The ATR process begins by directing a beam...