基于分子的光控半加器。
Molecule-based photonically switched half-adder.
作者信息
Andréasson Joakim, Kodis Gerdenis, Terazono Yuichi, Liddell Paul A, Bandyopadhyay Subhajit, Mitchell Reginald H, Moore Thomas A, Moore Ana L, Gust Devens
机构信息
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA.
出版信息
J Am Chem Soc. 2004 Dec 15;126(49):15926-7. doi: 10.1021/ja045577l.
A molecule-based binary half-adder with optical inputs and outputs has been demonstrated. The half-adder consists of two photochromic organic molecules in solution and a third-harmonic-generating crystal. One substance acts as an AND Boolean logic gate and the other as an XOR gate. Inputs are laser pulses at 1064 or 532 nm that initiate photoisomerization reactions. Outputs are the optical absorbance of a fullerene radical anion (AND gate) and fluorescence of a porphyrin (XOR gate). The system carries out binary addition based on the laser input pulses. Half-adders in combination are capable of carrying out all mathematical operations necessary for digital computing.
一种具有光学输入和输出的基于分子的二进制半加器已得到验证。该半加器由溶液中的两个光致变色有机分子和一个产生三次谐波的晶体组成。一种物质充当与门布尔逻辑门，另一种充当异或门。输入是1064或532纳米的激光脉冲，可引发光异构化反应。输出是富勒烯自由基阴离子的光吸收（与门）和卟啉的荧光（异或门）。该系统基于激光输入脉冲进行二进制加法。组合的半加器能够执行数字计算所需的所有数学运算。
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