Angular Selectivity of Amplitude-Phase Holographic Gratings in Polymer Material with Phenanthrenequinone


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The values of the amplitudes of the refractive index and absorption coefficient modulations in volume hologram gratings, which were recorded in a polymer material with phenanthrenequinone (PQ), have been determined by the results of the approximation of the angular selectivity contours, which were measured at wavelengths of 450, 473, 532, and 633 nm before and after the development of holograms, resulting from the diffusion of PQ molecules in a glassy polymer. Immediately after recording, before the diffusion development, the holograms are mixed amplitude-phase in the PQ absorption spectral region and phase for the red light, which is not absorbed by it (633 nm), and become purely phase during the development regardless of the wavelength. The shape of the selectivity contour of the undeveloped hologram indicates the counterphase between the modulations of the absorption coefficient and refractive index, illustrating the concept of complementary gratings, on which the principle of hologram formation in the material under consideration is based.

作者简介

V. Borisov

ITMO University

编辑信件的主要联系方式.
Email: borisov.itmo@gmail.com
俄罗斯联邦, St. Petersburg, 197101

A. Veniaminov

ITMO University

Email: borisov.itmo@gmail.com
俄罗斯联邦, St. Petersburg, 197101

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