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Filtered by Technical Features — 124 articles

Francis Tuffy

23 Oct. 2025

3 min read

Full-Parallax Authentication

The demand for high-security document features has driven research into optical technologies capable of producing effects that are both visually striking and extremely difficult to counterfeit.

Technical Features

Francis Tuffy

23 Sept. 2025

3 min read

Photonic Crystals in Anticounterfeiting

Photonic crystals (PCs) are optical nanostructures that affect the propagation of light by the periodic variation in their refractive index. As counterfeiting techniques become ever more sophisticated, PCs offer physically unclonable functions (PUFs) due to their defect-sensitive optical behaviour and structural colours that cannot be reproduced accurately by traditional printing or scanning techniques.

Technical Features

Guri Dhillon

23 Sept. 2025

2 min read

Why Use UV Resin for Hologram Casting?

UV resin is the preferred material for hologram casting because of its high precision, fast curing, and excellent optical properties. Here’s why UV resin is widely used in security holograms, diffractive optical elements (DOEs), and high-resolution embossing applications.

Technical Features

Chander S Jeena

23 Sept. 2025

2 min read

Optoelectronics Brings Smartphone Holograms a Step Closer

A new advance in optoelectronics from the University of St Andrews could accelerate the arrival of holographic technology in consumer devices, including smartphones, wearables, and entertainment platforms.

Technical Features

Chander S Jeena

23 Sept. 2025

2 min read

EPFL Finds Way to Capture Every Twist of Polarised Light

According to researchers at École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, polarisation is key for future technologies, ranging from quantum computers to secure communication and holographic displays.

Technical Features

Dr Stephen Furst

13 July 2025

2 min read

Seamless Drum Moulds with Nano and Microscale Structures

New technology from US-based startup SMS, called ‘Nanocoining’, is helping to bring nano- and microscale patterns to the industrial scale. The technology creates seamless cylindrical drum moulds for roll-to-roll nanoimprint processes with a patterning rate of up to 2 square inches (2,500mm2) per second – more than 500 times faster than typical electron-beam tools.

Technical Features

Chander S Jeena

27 March 2025

3 min read

Optical Security Features Continue on Banknotes

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.

Currency Optical Security Technical Features

27 March 2025

2 min read

Holograms Enhance Efficiency and Precision in 3D Printing

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.

3D Printing AR & VR Technical Features

Chander S Jeena

27 March 2025

2 min read

A New Lens on Health: Honeywell Unveils Digital Holographic Microscopy

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.

Companies Medical Imaging Technical Features

Francis Tuffy

27 March 2025

2 min read

Securing ID Documents Through Holography and Materials Innovations

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.

Free ID & Secure Documents Optical Security Free

Chander S Jeena

17 Feb. 2025

2 min read

Security Applications of Metasurface Holograms with Colour Print Features

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.

Technical Features

Chander S Jeena

17 Feb. 2025

2 min read

Welcome the Year of the Snake

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.

Free Technical Features Free

Chander S Jeena

17 Feb. 2025

3 min read

Holographic Endoscope Illuminating the Brain

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.

Technical Features

17 Feb. 2025

2 min read

Holograms and AI Create Uncrackable Optical Encryption System

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.

Technical Features

Chander S Jeena

22 Jan. 2025

2 min read

Dynamic Multicolour Luminescent Materials for Optical Anticounterfeiting

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

Technical Features

Chander S Jeena

22 Jan. 2025

2 min read

Holographic Stickers to Fight Air Pollution

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.

Technical Features

$Low-Cost, High-Volume Diffractive Lens Array for Optical Document Security$

Chander S Jeena

22 Jan. 2025

2 min read

Low-Cost, High-Volume Diffractive Lens Array for Optical Document Security

Advances in optical security technologies are crucial in combating counterfeiting, particularly for government issued documents and banknotes. A recent development in this field is the creation of a high-numerical-aperture (NA) multilevel diffractive microlens array (MLA) that operates across multiple wavelengths.

Technical Features

Chander S Jeena

22 Jan. 2025

5 min read

Holography Features at CES 2025

CES® (short for the Consumer Electronics Show) is justifiably referred to as the most influential technology event in the world. It is the proving ground for breakthrough technologies and global innovators. CES 2025 was held at the Las Vegas Convention Center from 7-10 January 2025.

Technical Features

Francis Tuffy

20 Nov. 2024

5 min read

Bio-Inspired Optical Security Design

In last month’s edition of Holography News®, we explored how bio-inspired security threads, showcased at the Global Currency Forum in Oman, are translating the visual complexity of butterflies, chameleons, oceans, and meadows into security print features. From Louisenthal’s micro-mirror innovations to Kurz’s meadow-inspired threads, industry leaders demonstrated how themes from nature are creating new opportunities in optical security.

Free Technical Features Free

Chander S Jeena

20 Nov. 2024

2 min read

When Holograms, AI, and God Take on Trash

Taiwan, once known as ‘Garbage Island’, is now leading the example for many countries as a recycling leader. In 1993, from a collection rate for trash of just 70%, it now has an impressive recycling rate of 55% and recycles 73% of its plastic, thanks to its various policy measures. This article highlights a few from an industry perspective.

Technical Features

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