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Bacteriorhodopsin modules for data processing with incoherent light.

T Juchem, M Sanio, N Hampp

    Optics Letters
    |November 21, 2007
    PubMed
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    Biological photochrome bacteriorhodopsin (BR) films enable incoherent optical processing by utilizing photoinducible anisotropy. This allows for non-destructive readout of refractive index changes for optical computing applications.

    Area of Science:

    • Biophysics
    • Optical Engineering
    • Materials Science

    Background:

    • Biological photochromes like bacteriorhodopsin (BR) exhibit unique optical properties.
    • Photoinducible anisotropy in polymeric BR films is key for optical processing.
    • BR possesses two distinct states (B and M) with high optical anisotropy.

    Purpose of the Study:

    • To demonstrate incoherent optical processing using bacteriorhodopsin films.
    • To leverage the photoinducible anisotropy of BR for data manipulation.
    • To develop a BR-based computing module for optical data processing.

    Main Methods:

    • Utilizing polymeric BR films with photoinducible anisotropy.
    • Switching BR states between B and M using green and blue light.

    Related Experiment Videos

  • Non-destructive readout of refractive index changes using red light (676nm).
  • Employing sensitive CCD arrays for low-power light detection.

    • Main Results:

    • Achieved incoherent optical processing with BR films.
    • Demonstrated the ability to switch BR states and read out refractive index changes.
    • Developed a BR-based XOR computing module.

    Conclusions:

    • Polymeric BR films are suitable for incoherent optical processing.
    • The photoinducible anisotropy and distinct states of BR are advantageous for optical computing.
    • BR-based modules offer a viable approach for optical data processing.