In the January and February 2025 issues of Holography & Optical Technology News™, we covered banknotes featuring optical innovations from Argentina, Mauritius, Romania, Kazakhstan, the Philippines, Kenya, China, the Falklands, and Belize.

Researchers from EPFL’s Laboratory of Applied Photonic Devices, led by Christophe Moser, in collaboration with Jesper Glückstad’s team at the University of Southern Denmark (SDU), have revealed a breakthrough in 3D printing.

At the recent High Security Printing™ (HSP) EMEA conference in Basel (3-5 February), Georgios Tziovaras, Global Business Development Manager at Covestro Specialty Films, highlighted the crucial role of holography and advanced optical technologies in modern identity documents.

Honeywell has unveiled the development of a new technology, Digital Holographic Microscopy (DHM), which uses artificial intelligence (AI) to count and classify microscopic particles or cells efficiently. This innovation holds significant potential across various industries where rapid analysis and streamlined operations are essential.

A European research team from Germany, the Czech Republic, and Belgium is developing an innovative imaging technology to visualise neuronal processes in living organisms with high precision.

The Chinese Lunar New Year 2025 began on 29 January, marking the start of the Year of the Snake. While people and organisations celebrate this in various ways, Holography & Optical Technology News® focuses on a few innovative industry developments welcoming the year of the snake.

Researchers from the Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas and the University of Crete, both in Greece, have developed a groundbreaking optical encryption method that they claim achieves an outstanding level of security.

Recent advancements in nanofabrication have demonstrated new possibilities for enhancing the design of optical security devices (OSDs) that display different images under various lighting conditions, including those combining colour printing with holography. However, the complexity of designing such devices and the challenge of scaling them up for real-world use remain significant hurdles.

A team of researchers at Sun Yat-sen University in China, has developed a novel luminescent material with dynamic properties.

The Supreme Court of India is considering making hologram-based, colour-coded stickers (HCCS) for vehicles mandatory nationwide. This comes amid growing concerns about pollution, with an increasing trend in the Air Quality Index (AQI) in Delhi, the country’s capital. The court noted that of the approximately 2.7 million vehicles in Delhi, only 1.7-1.8 million had these HCCS, which are crucial for identifying vehicles using sub-par fuel on high-pollution days.