Sigitas Tamulevicius

Title: Sigitas Tamulevicius: Innovator in Optical Security Technologies

Introduction

Sigitas Tamulevicius is a prominent inventor based in Kaunas, Lithuania. He has made significant contributions to the field of optical devices, particularly in the area of secure identity technologies. With a total of 2 patents, his work focuses on innovative methods for enhancing security features through advanced optical techniques.

Latest Patents

Tamulevicius's latest patents include an optical device with ordered scatterer arrays for secure identity and a method of producing the same. This invention discloses a method for configurable spatial control and modification of optically active resonantly coupled scatterer arrays to produce identifiable security features. The corresponding photonic secure identity device utilizes a series of steps, including the production of a deposition template, synthesis of a plasmonic particle colloid, and the creation of a customized secure identity device through selective removal or modification of optical properties using ultrashort laser pulses. This device serves as a means for secure identity and anti-counterfeiting, demonstrating a unique optical signature.

Another notable patent is the fabrication method of a holographic security label. This method combines two different hologram origination processes within a single photoresist layer. By using an interlayer to transfer structures exposed by electron beam lithography into overlapping dot-matrix hologram areas, the fabricated holographic structures are replicated in multilayer polymer films. This innovative approach allows for the creation of high-resolution structures alongside large hologram areas, significantly enhancing the level of protection for security devices.

Career Highlights

Tamulevicius is affiliated with the Kaunas University of Technology, where he continues to advance his research and development in optical technologies. His work has garnered attention for its practical applications in security and anti-counterfeiting measures.

Collaborations

Some of his notable coworkers include Tomas Tamulevicius and Mindaugas Juodenas, who contribute to the collaborative efforts in his research projects.

Conclusion

Sigitas Tamulevicius stands out as an innovative inventor in the realm of optical security technologies. His patents reflect a commitment to enhancing security through advanced optical methods, making significant strides in the field.