All-optical logic-gates based on bacteriorhodopsin film

Gui Ying Chen, Chun Ping Zhang, Zong Xia Guo, Jian Guo Tian, Guang Yin Zhang, Qi Wang Song

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Based on self-diffraction in bacteriorhodopsin (bR) film, we propose all-optical NOT, XOR, half adder and XNOR logic operations. Using the relation between diffraction light and the polarization states of recording beams, we demonstrate NOT and XNOR logic operations. Studying the relation of polarization states among the diffracting, recording and reading beams, we implement XOR logic and half adder operations with three inputs. The methods are simple and practicable.

Original languageEnglish (US)
Pages (from-to)774-778
Number of pages5
JournalChinese Physics
Issue number4
StatePublished - Apr 2005


  • All-optical logic-gates
  • BR film
  • Half adder
  • Self-diffraction

ASJC Scopus subject areas

  • General Physics and Astronomy


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