Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Realization of optical logic gates using photocycle properties of bacteriorhodopsin

박테리아로돕신의 광순환 특성을 이용한 광학적 논리회로 구현

  • 오세권 (청주대학교 정보기술공학부/레이저광정보공학) ;
  • 유연석 (청주대학교 정보기술공학부/레이저광정보공학)
  • Published : 2002.10.01
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Abstract

We realized optical logic gates using a bacteriorhodopsin (bR) doped polymer film. The bR undergoes a complex photocycle characterized by several spectroscopically distinct intermediate states. We realized optical logic gates using a He-Ne laser (632.8 nm) and a He-Cd laser (413 nm) that consider B-state and absorption change of M-state in the photocycle of bR. Also, we realized high speed AND logic gate using He-Ne laser (632.8 nm) and the second harmonics at 532 nm from a pulsed Nd-YAG laser that considering absorption spectrum between B-state and K-state.

본 연구에서는 bacteriorhodopsin(bR)이 첨가된 고분자 박막을 이용하여 광 논리회로 특성을 구현하였다. bR은 분광학적으로 구분되는 몇 단계의 중간단계로 구성된 복잡한 참순환 과정을 수반하고 있다. 우리는 bR의 광순환 과정중 B상태와 M상태의 흡수도 변화를 고려하여 He-Ne 레이저(632.8 nm)와 He-Cd 레이저(413 nm) 이용하여 광학적 논리회로를 구현하였다. 또한 B상태와 K상태간의 흡수 스펙트럼을 고려하여 He-Ne 레이저(632.8 nm)와 Nd-YAG 레이저의 제2고조파인 532 nm를 이용하여 고속 AND logic gate를 구현하였다.

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References

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