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関連する概念動画

Photoelectric Effect02:26

Photoelectric Effect

When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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関連する実験動画

Updated: May 11, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

フォトニックエンジニアリング. アフロディテの虹彩はアフロディテの虹彩である.

A R Parker1, R C McPhedran, D R McKenzie

  • 1Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.

Nature
|May 9, 2001
PubMed
まとめ

海老鼠の脊椎は,そのユニークな構造により, 100%の反射率で全可視スペクトルを反映し,壮大な色を呈しています. この自然の光学工学は,自然界の高度な光学能力を示しています.

科学分野:

  • バイオフォトニクス バイオフォトニクス
  • 構造色付け 構造色付け
  • マリン・バイオロジー マリン・バイオロジー

背景:

  • 濃い自然の色は,多層の反射器や微分格子から生じる.
  • 海老鼠 (アフロディタ種) 驚くべき虹色を現しています.
  • ポリケートアネリドは,複雑な外部の構造を持っています.

研究 の 目的:

  • 海老鼠ノトセタの虹色を調査する.
  • 色の変化する性質の構造的基礎を理解する.
  • 生物が採用する光学工学の原理を分析する.

主な方法:

  • 海老鼠ノトセタの顕微鏡検査.
  • 光の反射と色の性質の光学分析.
  • 脊椎の構造を分析する.

主要な成果:

  • ノトセータは,通常の照明下では深赤色を呈する.
  • 特定の光インシデンス下では,脊椎軸に沿って異なる色のストライプが現れます.
  • 構造は,特定の角度での100%の反射率で,完全な可視スペクトルを反映します.

さらに関連する動画

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

関連する実験動画

Last Updated: May 11, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

結論:

  • 海老鼠ノトセタは,天然の光学結晶である.
  • そのシンプルな構造は,複雑な光学効果を達成し,生物学的光学工学を示しています.
  • この発見は,自然の構造色彩とバイオミメティックデザインの洞察を提供します.