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29 September 2006 Development and performance of an all-DNA-based electro-optic waveguide modulator
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Marine-based deoxyribonucleic acid (DNA), purified from waste products of the Japanese fishing industry, has recently become a new material of interest in photonics applications. The water soluble DNA is precipitated with a surfactant complex, hexadecyltrimethyl-ammonium chloride (CTMA), to form a water insoluble complex, DNA-CTMA, for application as a nonlinear optical material. In order to fabricate an all-DNA-based waveguide, it was necessary to crosslink the DNA-CTMA films. Crosslinking makes the films resistant to their initial solvent; this permits spin-coating of successive DNA-CTMA layers without solvent damage. A chromophore dye is added to the core layer to allow for an electro-optic coefficient to be induced through contact poling. Through contact poling, an electro-optic (EO) coefficient comparable to that in other polymers was demonstrated in crosslinked DNA-CTMA films with the chromophore dye Disperse Red 1. This EO effect allowed for the creation of the first all-DNA-based EO waveguide modulator. The performance of the modulator is described.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Emily M. Heckman, Perry P. Yaney, James G. Grote, and F. Kenneth Hopkins "Development and performance of an all-DNA-based electro-optic waveguide modulator", Proc. SPIE 6401, Optical Materials in Defence Systems Technology III, 640108 (29 September 2006);

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