Self-diffraction effect observation and recording the holographic one-dimensional and two-dimensional gratings in thin photosensitive films

• Дата: 2007
• Автори: Ageev, L.A., Beloshenko, K.S., Makovetsky, E.D., Miloslavsky, V.K.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2007
• Назва видання: Functional Materials
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/136527
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Self-diffraction effect observation and recording the holographic one-dimensional and two-dimensional gratings in thin photosensitive films / L.A. Ageev, K.S. Beloshenko, E.D. Makovetsky, V.K. Miloslavsky // Functional Materials. — 2007. — Т. 14, № 3. — С. 290-294. — Бібліогр.: 7 назв. — англ.

A setup for observation of the nonlinear self-diffraction effect has been described. A semiconductor laser (P≈50 mW, λ≈660 nm) is used as a radiation source. The laser beam is divided into two beams by a Wollaston prism, the beams pass through a polarizer and positive lens, then they intersect and create an interference. Using a microscope, the interference may be observed in an increased scale on a remote screen. The interference is registered in a thin photosensitive As₂S₃—Ag film prepared by vacuum evaporation. We have shown an opportunity to observe the self-diffraction from recorded diffraction grating with linear grooves and from two-dimensional grating induced as a result of second exposure after turning the convergence plane of the interfering beams by 90°.