Fluorescence enhancement of hemicyanines bound to DNA or DNA-complex and their application to dye laser

• DOI: 10.1364/ome.7.002062
• Publication Date: 2017-05-24T18:59:17Z
• Authors: Yuki Suzuki; Yutaka Kawabe
• Keywords: 02 engineering and technology; 0210 nano-technology

Light amplification in DNA systems is a promising technique for efficient and compact photonics devices in the future. Since highly fluorescent properties for hemicyanine dyes are caused by the interaction with DNA or a DNA-complex, their effects on basic optical properties were elaborated in phases of solution and solid films prepared with two methods. Results of absorption and fluorescence characteristics showed that the strongest light emission was achieved by the interaction with DNA-CTMA (cetyltrimethylammonium) rather than direct coupling to bare DNA. Laser performance was compared for films prepared with two means, indicating that this newly developed immersion method provided highly doped samples with better performance in intensity, threshold value and durability.