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Nanophysics Oct 7, 2023

Free-space nanoprinting beyond optical limits to create 4D functional structures

Two-photon polymerization is a potential method for nanofabrication to integrate nanomaterials based on femtosecond laser-based methods. Challenges in the field of 3D nanoprinting include slow layer-by-layer printing and ...

Bio & Medicine Oct 2, 2023

Using DNA as glue to hold nanostructures together and build ultra-strong colloidal crystal metamaterials

A team of chemical and biological engineers working with a group of nanotechnologists at Northwestern University in Illinois has developed a type of super-strong colloidal crystal metamaterial by gluing together metal nanostructures ...

Optics & Photonics Sep 18, 2023

Unveiling the invisible: A bioinspired CMOS-integrated polarization imaging sensor

Polarimetric imaging can uncover features invisible to human eyes and conventional imaging sensors, and it is becoming an ever more essential technique in modern society. Conventional polarimetric imaging systems require ...

Optics & Photonics Sep 15, 2023

New metamaterial-based strategy to combine and transmit multiple light modes

The past few years have seen a massive surge in the amount of data transferred and processed per second. Rapidly emerging technologies, such as high-dimensional quantum communications, large-scale neural networks, and high-capacity ...

Mathematics Sep 5, 2023

Team discovers thousands of new transformable knots

Knots are used in all sorts of ways, every day. They ensure safety both indoors and for outdoor activities such as boating or sailing, are used as surgical sutures, as decorations, and they can even be found at nanoscales ...

Optics & Photonics Aug 30, 2023

Micro-optical technology based on metamaterials takes center stage

Metasurfaces are artificial materials adept at manipulating perception. With metasurfaces allowing lenses to be reduced to one 10,000th the size of conventional lenses, they are generating considerable interest as optical ...

Nanophysics Aug 29, 2023

X-photon 3D nanolithography

Multiphoton lithography (MPL) is a technique that uses ultra-short laser pulses to create complex three-dimensional (3D) structures at the micro- and nanoscale. It is based on the principle of multiphoton absorption (MPA), ...

Optics & Photonics Aug 21, 2023

Physicists employ synthetic complex frequency waves to overcome optical loss in superlenses

A collaborative research team led by Interim Head of Physics Professor Shuang Zhang from The University of Hong Kong (HKU), along with National Center for Nanoscience and Technology, Imperial College London and University ...

Quantum Physics Aug 14, 2023

No longer ships passing in the night: These electromagnetic waves had head-on collisions

A research team at the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) has shown that it is possible to manipulate photons so that they can collide, interacting in new ways as they cross paths. The ...

Optics & Photonics Aug 9, 2023

A route to ultra-fast amplitude-only spatial light modulation using phase-change materials

A team of researchers from the Center for Research and Innovation in Metamaterials at the University of Exeter and the Laser Processing Group at the Institute of Optics have presented in the journal Advanced Optical Materials ...

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