Scattering signals of monochromatic light incident on a rectangular microchannel

  • Authors:

  • Ching-Yen Ho;Bor-Chyuan Chen;Yu-Hsiang Tsai

  • Affiliations:

  • Department of Mechanical Engineering, Hwa Hsia Institute of Technology, Taipei 235, Taiwan;Department of Chinese medicine, Buddhist Dalin Tzu Chi General Hospital, Dalin, Chiayi 622, Taiwan;Department of Mechanical Engineering, Hwa Hsia Institute of Technology, Taipei 235, Taiwan

  • Venue:
  • Computers & Mathematics with Applications
  • Year:
  • 2012

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Abstract

In this paper, the transition process of scattering signals is investigated as an incident monochromatic light irradiates rectangular channels with sizes from micrometers to submicrometers. Monochromatic light scattering from open groove cavities is important in many design analyses for such fields as optical communications, display, storage, sensing, MENS and nano-technology. The distribution of scattering signals for light incident on the groove starts to change due to the diffraction as the opening width of the groove is close to the wavelength of monochromatic light. This study revealed the transition process of scattering signals of monochromatic light irradiating rectangular microchannels with sizes from micrometers to submicrometers. The results showed that the profile for the intensity of scattering signals changes from concave to convex shape in the direction of width and from irregular to regular wave in the direction of depth if the opening width of the rectangular microchannel reduces from micrometer to submicrometer.