Theoretical analysis of gyrotropy and absorption of terahertz electromagnetic waves in layer of DNA molecules

International Conference of Young Scientists and Specialists "Optics-2015"

Semenova, A.^1 ; Vaks, V.^1,2,3

Institute for Physics of Microstructures, Nizhny Novgorod, Russia^1

Lobachevsky State University, Nizhny Novgorod, Russia^2

ITMO University, Saint-Petersburg, Russia^3

关键词: Dispersion relationship;    DNA duplexes;    DNA molecules;    Experimental check;    Low-frequency;    Molecular oscillations;    Parallel-DNA;    Spectral characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/735/1/012033/pdf
DOI  :  10.1088/1742-6596/735/1/012033

来源: IOP

【 摘 要 】

Certain type of low-frequency DNA molecular oscillations was analysed within the self-consistent phonon approximation. There were calculated dispersion relationship, exiting the oscillations by electromagnetic wave and corresponding contribution to the absorption spectrum of ensemble of parallel DNA molecules. The dependence of the DNA spectral characteristics on the length and period of the DNA duplex structure is revealed. The method of experimental check of obtained results is suggested. If the described model is confirmed by experiment, the obtained results available to reconstruct the length and duplex period of the DNA in a sample by its absorption spectrum.