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Nanostructures of Butterfly Wings Lead to Anti-counterfeiting Technique

New company expects to see clients using the technique on their products this year

2 min read
Nanostructures of Butterfly Wings Lead to Anti-counterfeiting Technique
Didier Descouens/Wikipedia

Nanotechnology is being used in a number of anti-counterfeiting techniques. There are those that are still at a fairly preliminary stage of their development and others that are well-established commercial interests.

Now a new company, Vancouver, Canada-based NanoTech Security Corp., is bringing a nanotech-based, anti-counterfeiting technology to market that operates on the same principle as the iridescent wings of the Blue Morpho butterfly.

Researchers have mimicked the Morpho wing structure as the basis for developing nanostructures before. In at least one case, it involved removing the actual scales from the butterfly wing and doping them with carbon nanotubes for improved thermal imaging.

NanoTech Security’s approach merely mimics the Morpho and forgoes the removal of the wing’s scales. The technique they developed involves using an electron beam to engrave nanoscale inscriptions into a material that are smaller than a wavelength of visible light. At this size, the light is captured in the same way that the Morpho’s iridescent wings operate.

In actual operation, when a product has been marked in this way it will produce a bright flickering image—like a hologram—whenever the light striking it changes, such as when someone walks between a light source and the object.

In addition to being difficult to duplicate, as are some quantum cash proposals, anti-counterfeiting marks have to be mass produced. Unfortunately, using an electron beam to carve out nanostructures in purse clasps doesn’t seem to lend itself to economies of scale.

However, the team at NanoTech Security argues that only creating the initial master is difficult and time consuming. After the master has been created, the pattern can be duplicated in a roll-to-roll process. But the roll-to-roll process cannot be executed without the master, thwarting any other duplication attempts.

The Vancouver-based company has been spent the last several years refining their processes to the point where the company has shipped its first masters and expects to see products using the technique in 2013.

The key for any counterfeiting technology is finding the price point at which their added-value technique does not add so much to the product’s cost that it scares away buyers. Based on that understanding, it should be interesting to see the value of the products that first adopt the technology.

Photo: Didier Descouens/Wikipedia

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Two Startups Are Bringing Fiber to the Processor

Avicena’s blue microLEDs are the dark horse in a race with Ayar Labs’ laser-based system

5 min read
Diffuse blue light shines from a patterned surface through a ring. A blue cable leads away from it.

Avicena’s microLED chiplets could one day link all the CPUs in a computer cluster together.

Avicena

If a CPU in Seoul sends a byte of data to a processor in Prague, the information covers most of the distance as light, zipping along with no resistance. But put both those processors on the same motherboard, and they’ll need to communicate over energy-sapping copper, which slow the communication speeds possible within computers. Two Silicon Valley startups, Avicena and Ayar Labs, are doing something about that longstanding limit. If they succeed in their attempts to finally bring optical fiber all the way to the processor, it might not just accelerate computing—it might also remake it.

Both companies are developing fiber-connected chiplets, small chips meant to share a high-bandwidth connection with CPUs and other data-hungry silicon in a shared package. They are each ramping up production in 2023, though it may be a couple of years before we see a computer on the market with either product.

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