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Optics & Photonics Apr 29, 2019

New 3-D printed microscope promising for medical diagnostics in developing countries

Researchers have used 3-D printing to make an inexpensive and portable high-resolution microscope that is small and robust enough to use in the field or at the bedside. The high-resolution 3-D images provided by the instrument ...

Optics & Photonics Apr 24, 2019

Quality of laser beam shaping can be enhanced at no extra cost

Researchers from Osaka University have developed a technique for improving accuracy of laser beam shaping and wavefront obtained by conventional methods with no additional cost by optimizing virtual phase grating. The results ...

Optics & Photonics Apr 19, 2019

Tiny pinholes in thin film could pave the way for 3-D holographic displays

Researchers in Korea have designed an ultrathin display that can project dynamic, multi-colored, 3-D holographic images, according to a study published in Nature Communications.

Archaeology Mar 27, 2019

Ancient West Bank site draws Christians, and controversy

Deep in the West Bank, Israeli settlers have transformed an archaeological site into a biblical tourist attraction that attracts tens of thousands of evangelical Christians each year.

Optics & Photonics Mar 26, 2019

Physicists create Star Trek-style holograms

Star Trek's famous holodeck is a virtual reality stage that simulates any object in 3-D as if they were real. However, 3-D holographic projection has never been realized. A team of scientists from Bilkent University, Turkey, ...

Engineering Mar 12, 2019

Holographic 3-D coach to help healthy living

A 3-D hologram projection of a coach, to support physical and mental wellbeing: over the last few months, DesignLab has been working on the design and hardware for a prototype HoloProjector for virtual coaches, together with ...

Optics & Photonics Mar 7, 2019

Deep learning merges advantages of holography and bright-field microscopy for 3-D imaging

Digital holographic microscopy is an imaging modality that can digitally reconstruct the images of 3-D samples from a single hologram by digitally refocusing it through the entire 3-D sample volume. In comparison, scanning ...

Internet Feb 28, 2019

Your period tracking app could tell Facebook when you're pregnant. An 'algorithmic guardian' could stop it

Most of us know tech platforms such as Facebook and Google track, store and make money from our data. But there are constantly new revelations about just how much of our privacy has been chipped away.

Optics & Photonics Feb 22, 2019

Engineering wave reflections with power flow-conformal metamirrors

Metasurfaces are two-dimensional (2-D) metamaterials that can control scattering waves of a light beam. Their applications include thin-sheet polarizers, beam splitters, beam steerers and lenses. These structures can control ...

Nanomaterials Feb 20, 2019

Thermally-painted metasurfaces yield perfect light absorbers for high-tech applications

Researchers have discovered that the ancient technique of heating metal to create vibrant colors creates a nanostructured surface that acts as a perfect light absorber. Perfect light absorbers—materials that absorb more ...

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