If you wear glasses, and they have been created recently, you are reading this article by looking through a tiny, transparent layer of nanomaterial. Anti-reflective coatings based on nanomaterials that reduce the amount of reflected light are used in most optical devices, including glasses, photo lenses, TV screens, solar cells and LED lights.
They could get better in the future. Some of the most efficient ARCs are made by mother nature and are found in the eyes of insects, like moths. The eyes of moths are covered with a layer of tiny bumps which are smaller than the wavelength of incoming light. This natural coating eliminates glare, hiding the moths from predators and improving their nocturnal vision. Some types of ARCs actually mimic the moth's eye.
These coatings are effective, but currently they are relatively expensive and difficult to customize. A group at the Max Planck Institute for Intelligent Systems in Stuttgart, coordinated by Joachim P. Spatz, has developed a new way to produce moth eye-like coatings and they say the resulting coatings are comparable in cost to classic ARCs and can be easily customized.
The eyes of nocturnal insects give researchers new ideas for anti-glare coatings. Credit: Max Planck Institute
The manufacturing process developed at the Max Planck Institute, which uses gold nanoparticles, produces regular, tiny bumps similar to that found in the moths' eyes. Structural parameters such as period, height and shape of these structures can be easily controlled, say the German group. Researchers have formed a spin-off team to exploit and commercialize their solution.
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- No, Earth's Magnetic Field Is Not About To Flip
- Our Ethical Responsibilities To Baby Terraformed Worlds - Like Parents
- Supersymmetry Is About To Be Discovered, Kane Says
- Anomaly! - A Different Particle Physics Book
- Like Human Civilization? Thank Our Evil Side
- The Harmful Use Of Topical Steroids In India Is Out Of Control, Says Expert
- At The Edge Of Vision: Struggling To Make Sense Of Our Cluttered World
- "Oh not at all, thanks for asking. Ask away, if you have any other questions, delighted to help..."
- "thank u mr walker its nice to talk to someone with some knowledge hope I'm not getting on your..."
- "Yes it's amazing how bright it gets, especially Venus. It is about at its brightest around now..."
- "no ive got no binoculars wish I had now I was amazed wen I seen it this morning it was just so..."
- "Yes if you've been scared for some time, it has an effect on your body. You have to kind of reassure..."
- Study shows white matter damage caused by 'skunk-like' cannabis
- Cognitive behavior therapy can help overcome fear of the dentist
- Don't forget plankton in climate change models, says study
- Graphene microphone outperforms traditional nickel and offers ultrasonic reach
- New metric mapping top 10 European heat waves predicts strong increase in next 2 decades