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The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
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Light Acquisition02:16

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The Wave Nature of Light02:12

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Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
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Setting Up a Simple Light Sheet Microscope for In Toto Imaging of C. elegans Development
08:37

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Published on: May 5, 2014

Luz en pequeños agujeros.

C Genet1, T W Ebbesen

  • 1ISIS, Université Louis Pasteur and CNRS (UMR7006), 8 allée G. Monge, 67000 Strasbourg, France.

Nature
|January 5, 2007
PubMed
Resumen
Este resumen es generado por máquina.

Pequeños agujeros en las películas metálicas, más pequeños que las longitudes de onda de la luz, crean una mejor transmisión y filtración de la luz. Controlar el tamaño y la geometría del agujero desbloquea nuevas aplicaciones en óptica y detección.

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Área de la Ciencia:

  • La óptica es la óptica.
  • Ciencia de los materiales Ciencia de los materiales.
  • Nanotecnología La nanotecnología es la nanotecnología.

Sus antecedentes:

  • Las películas metálicas opacas con agujeros en las longitudes de onda exhiben fenómenos ópticos inusuales.
  • Estos efectos están relacionados con la interacción de la luz con las resonancias electrónicas superficiales.

Objetivo del estudio:

  • Para explorar las propiedades ópticas de los agujeros de longitud de onda en las películas metálicas.
  • Para entender el papel del tamaño del agujero y la geometría en el control de estas propiedades.

Principales métodos:

  • Fabricación de películas metálicas con matrices de agujeros de longitud de onda subcontroladas con precisión.
  • Caracterización óptica de la transmisión de la luz y los efectos de filtrado.

Principales resultados:

  • Se observó una transmisión de luz fuertemente mejorada a través de agujeros de longitud de onda inferior.
  • Capacidades de filtrado de longitud de onda demostradas dependiendo de las dimensiones del agujero.

Conclusiones:

  • La ingeniería de agujeros de longitud de onda en películas metálicas ofrece propiedades ópticas sintonizables.
  • Las aplicaciones potenciales incluyen óptica de longitud de onda inferior, optoelectrónica, detección química y biofísica.