29 November 2000 Light amplification in dye-doped DNA-surfactant complex films
Author Affiliations +
We observed amplified spontaneous emission (laser action without cavities) from several kinds of dyes doped in films of salmon DNA (deoxyribonucleic acid) derivatives. We employed laser dye Rhodamine-6G, Pyrromethene 556, and nonlinear optical dye DMASDPB for dopants. Most of sample films with several micrometers thickness were prepared as follows: 1) DNA aqueous solution was mixed with hexadecyltrimethylammonium chloride aqueous solution. 2) precipitated DNA-lipid complex and dyes were dissolved in ethanol or chloroform. 3) Films were formed on substrates by casting from the solution. The amplified spontaneous emission was observed when the films were pumped with a nanosecond laser of 532 nm at the intensity above a threshold value. Spectral narrowing occurred at the threshold energy, and it was accompanied with superlinear dependence of the emission intensity on the pumping intensity. Dye molecules in DNA films can be intercalated in the double helix structure. Because molecules are separated form one another, it is possible to increase chromophore concentration without fluorescence quenching due to aggregation. Furthermore, it is known that DNA shows a good conducting property. We will discuss the possibility of optical and electronic devices utilizing these characteristics.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yutaka Kawabe, Yutaka Kawabe, Lili Wang, Lili Wang, T. Koyama, T. Koyama, Suguru Horinouchi, Suguru Horinouchi, Naoya Ogata, Naoya Ogata, } "Light amplification in dye-doped DNA-surfactant complex films", Proc. SPIE 4106, Linear, Nonlinear, and Power-Limiting Organics, (29 November 2000); doi: 10.1117/12.408526; https://doi.org/10.1117/12.408526


Lifetime-based identification of single molecules
Proceedings of SPIE (May 08 1995)
High-Efficiency Laser Dyes For High-Energy Dye Lasers
Proceedings of SPIE (October 26 1989)
Photostability of some pyrromethene laser dyes
Proceedings of SPIE (May 04 1999)
Characteristics of dye-doped ormosil lasers
Proceedings of SPIE (October 13 1994)
Pyrromethene-BF2 laser dyes
Proceedings of SPIE (June 01 1994)

Back to Top