All-optical image switch based on bacteriorhodopsin film

Guiying Y. Chen, Xin Liang, Yizhe Yuan, Guang Yang, Chunping Zhang, Tang Xu, Q. W. Song

Research output: Contribution to journalArticlepeer-review


While two waves are coupled in bacteriorhodopsin (bR) film, a beam of incident light carrying the image is transferred to two diffraction beams whose intensities can increase from zero to a maximum and then decrease to a stable value with the increase of the writing time. Based on the relation among the polarization states of image in a recording beam and diffraction beams, we have proposed and demonstrated the all-optical image transfer switch which depends on the effective time and has the function that within the effective time, a polarization state image is automatically transferred to two images whose polarization states are perpendicular, and the transfer stops automatically beyond the effective time. A time-dependent all-optical image switch with muti-outputs is implemented.

Original languageEnglish (US)
Pages (from-to)377-380
Number of pages4
Issue number8
StatePublished - Aug 7 2007
Externally publishedYes


  • All optical logic gates
  • Time dependent
  • bR film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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