Holographic structures formation in light sensitive photopolymeric materials using pulsed laser and digital holography method

Wednesday, September 27, 2017 - 13:00
Dissertation Defence Hall (K. Donelaičio St. 73- 403 room)

Author, Institution: Ramūnas Bakanas, Kaunas University of Technology

Science Area, Field of Science: Technological Sciences, Materials Engineering – 08T

Summary of the Doctoral Thesis: Summary

Scientific Supervisor: Prof. Dr. Virginija JANKAUSKAITĖ (Kaunas University of Technology, Technological Sciences, Materials Engineering – 08T).

Dissertation Defence Board of Materials Engineering Science Field:
Prof. Dr. Habil. Arvaidas GALDIKAS (Kaunas University of Technology, Technological Sciences, Materials Engineering – 08T) – chairman;
Assoc. Prof. Dr Mindaugas ANDRULEVIČIUS (Kaunas University of Technology, Technological Sciences, Materials Engineering – 08T);
Dr. Vjačeslavs GERBREDERS (Daugavpils University, Latvia, Physical Sciences, Physics – 02P);
Dr. Viktoras GRIGALIŪNAS (Kaunas University of Technology, Technological Sciences, Materials Engineering – 08T);
Dr. Mangirdas MALINAUSKAS Vilnius University, Physical Sciences, Physics – 02P.

The doctoral dissertation is available on the internet and at the library of Kaunas University of Technology (K. Donelaičio g. 20,Kaunas)

In this work, digital holography method is adapted to create deep rainbow 3D holographic images, which fills the gap between the analogue holography and electronic lithography. The new digital holographic printer, which uses single wavelengths of solid-state pulse nanosecond laser, operating on interference principle, allows to obtain deep 3D holographic transmission holograms (color rainbow, achromatic – black and white, combined – rainbow-achromatic, only in laser light visible holograms) directly on the positive photoresist layer by one step. An image animation is also possible using this method.
Thus, the proposed method using the single wavelength pulse laser is suitable for security, protective packaging and other high-quality master hologram origination. According to the available data, this method is about ten-times faster than other currently existing deep hologram origination methods. Therefore, hologram replication processes via thermal imprinting (hologram recombination) is no longer needed, because the high-quality reproduction of the original can be performed directly by direct optical recombination method.
This method also can be used for diffraction structures thermal imprinting in plastics. It opens up new possibilities for the production of novel type master hologram origination. Combining the deep holographic master origination method with other existing hologram origination methods creates the way of new hybrid security and deep 3D holographic image hologram origination manufacturing.