関連する実験動画
Updated: May 5, 2026

20:00
Single Molecule Fluorescence Microscopy on Planar Supported Bilayers
Published on: October 31, 2015
14.0K
レーザー,赤外線,マイクロ波の多スペクトル適合調節のためのトランススケール階層メタ表面
He Lin1,2,3, Fuyuan Shen1,4, Zuojun Zhang1,3
1National Key Laboratory of Optical Field Manipulation Science and Technology, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China.
Nanophotonics (Berlin, Germany)
|September 2, 2025
まとめ
この研究は,光学伝送と電磁気散乱制御の強化のためのトランススケール階層的なメタ表面 (THM) を導入します. 新しいメタ表面設計は,高度な光学およびマイクロ波アプリケーションのために90%以上の伝導率と重要なレーダー横断面の減少を達成します.
科学分野:
- メタマテリアルとナノフォトニクス
- 電磁波の操作
- 多機能光学装置
背景:
- 光学窓における電磁気散乱の制御は,材料と構造の不一致により,多スペクトルおよび広角アプリケーションでは困難です.
- 既存のソリューションはしばしば光学伝送や電磁互換性を損なう.
研究 の 目的:
- 横断的な階層的なメタ表面 (THM) を開発し,同時に広角光学伝送の強化と電磁散射の調節を行う.
- 赤外線,マイクロ波,ダブルバンドレーザーの範囲で互換性を可能にします.
主な方法:
- 多段階のナノリトグラフィを用いたTHMの製造で,超精細の空洞金属配列 (UHMA) と伝送強化マイクロナノコン配列 (TMCA) を含む.
- マイクロ波レーダー横断 (RCS) のエコー拡散反射制御のためのUHMA.
- 広角光学伝送強化のためのTMCA.
主要な成果:
- 9.5-1.5GHzのマイクロ波帯で10dBの分散減少が実証されている.
- 1.42,1.7および3〜5μmの光学範囲で0°〜60°のインシデンス角度で90%を超える平均光学伝導率を達成した.
- 亜鉛硫化物 (ZnS) ウィンドウと比較して,広い角度での平均伝送は34.3%改善された.
結論:
- THMは,シネージ的光学およびマイクロ波調節のための例外的な多機能互換性と光学性能を提供します.
- 開発されたメタ表面は,マイクロ波装置の光学透明性の実現可能な解決策を提供します.
- ブロードバンドの極化独立性,低クロスストークイメージング,および水害性特性を実証した.
関連する概念動画
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
7.8K
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material, molecules absorb light depending on the energy required for...
7.8K
UV–Vis Spectroscopy: Beer–Lambert Law
7.6K
The Beer-Lambert law describes the relationship between absorbance and concentration, which combines the principles established by scientists Johann Heinrich Lambert and August Beer. Lambert's law states that when light passes through a medium, the loss in intensity is directly proportional to the original intensity and the path length of the light. Beer's law proposed that the transmittance of a solution remains constant if the product of concentration and path length is constant. The modern...
7.6K
UV–Vis Spectrometers
4.1K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
4.1K
IR Spectrometers
3.1K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
3.1K
Total Internal Reflection Fluorescence Microscopy
11.0K
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.
11.0K

