The new approach to identification of film reflecting holographic marks

• Опубліковано в: : Semiconductor Physics Quantum Electronics & Optoelectronics
• Дата: 2011
• Автори: Kostyukevych, S.O., Muravsky, L.I., Fitio, V.M., Voronyak, T.I., Shepeliavyi, P.E., Kostyukevych, K.V., Moskalenko, N.L., Pogoda, V.I.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2011
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/117761
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: The new approach to identification of film reflecting holographic marks / S.O. Kostyukevych , L.I. Muravsky, V.M. Fitio, T.I. Voronyak, P.E. Shepeliavyi, K.V. Kostyukevych, N.L. Moskalenko, V.I. Pogoda // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2011. — Т. 14, № 3. — С. 350-356. — Бібліогр.: 13 назв. — англ.

The new approach for creation of film reflecting holographic marks for optical
 security is proposed. Such marks are replicas of a reflecting master hologram recorded on
 a chalcogenide glass layer. To receive the master hologram, the joint power spectrum of
 a reference phase mask and an input phase mask or a transformed phase mask is
 produced at the plane of the hologram writing and is modulated by an inclined laser
 beam. If an inclined laser beam illuminates the replica recorded on a flexible substrate,
 phase noise including speckle noise is eliminated because the hologram carrier frequency
 exceeds greatly the limiting frequency of the phase noise power spectrum. Experimental
 results have shown the principal possibility to produce the high performance film
 reflecting holographic marks for security applications. The proposed approach can be
 combined with technologies for fabrication of rainbow holograms. In this case, the
 received rainbow holograms are the reflecting holographic marks simultaneously.
 Therefore, they can be verified not only visually, but also by means of automatic
 identification.