Applications of the DNA-based material for lasing and dynamic holography
Résumé
We present results of possible applications of a modified DNA-dye system for lasing and dynamic optical information recording. The system consisted of bio-polymeric matrix made of deoxyribonucleic acid (DNA) substituted with cationic surfactant molecule cetyltrimethyl-ammonium chloride (CTMA) and doped with a photochromic (Disperse Red 1) or fluorescent (Rhodamine 6G) molecules. Results of optical information recording were obtained in a typical degenerate two wave mixing experiment. For sample excitation we used a linearly polarized light of λ = 514.5 nm delivered by an argon ion (Ar+) laser. For amplified spontaneous emission measurements we used 6 ns pulses of 532 nm wavelength delivered by Nd:YAG laser doubled in frequency.