Holograms As Security Features: Origination, Development and Perception.
When it comes to the benefits and limitations of the technologies, results show analog holography and e-beam lithography to be more suitable for security applications due to their higher implementation cost and lower availability.
As anti-counterfeiting features, holograms are present on various products, from banknotes and credit cards to children’s strollers. Most people encounter them every day, yet they are often unaware of their presence. Holograms are subject to continuous research and development and are more recently known in the form of projections. They are even considered futuristic art by some.
The invention of holography tells a long story of research that is based on fundamental laws of physics and optics. Like photography, holography is a way of recording, yet the technologies have substantial differences when it comes to the information captured. As the meaning of the Greek words “holo” (whole) and “gram” (message) connote, a hologram captures the entirety of a scene, with all its visual properties, including the realism of three dimensions1.
About the Authors:
With a background in both art and chemistry, as well as a degree in business administration from HWZ Zürich, Müller is dedicated to promoting the use of holography for anti-counterfeiting purposes.
As the director of technologies and R&D at 3D AG, Dr. Krehel applies his expertise in developing functional and holographic structures on a large scale. He earned his Ph.D. from ETH Zürich, where he conducted research on optical fibers for biomedical sensing, which ultimately led to the award of his doctorate.
