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Optics & Photonics Jun 2, 2020

Perfect optics through light scattering

Innovative technologies are the key to tackling some of society's key challenges—and many of these technologies have an optical system at their core. Examples include semiconductor lithography systems designed to create ...

Materials Science Jun 2, 2020

Light for lithography could pass printed fibers

University of Utah researchers have developed a printed fiber-based light modulating system that combines polymer printing and quantum wave optics, providing a new lithography platform.

Earth Sciences Jun 1, 2020

The hidden underwater map of the past

Major climate changes leading to great fluctuations in sea levels took place during the Quaternary period 2.58 million years ago. The sea receded during the glaciations, because the water ended up stored in huge ice masses; ...

Materials Science May 28, 2020

A simple method to print planar microstructures of polysiloxane

Polysiloxane is an elastic polymer which is widely used in fluidics, optics, and biomedical engineering. It offers desirable properties for microfabrication due to its castable and curable properties.

Optics & Photonics May 27, 2020

High-speed femtosecond laser plasmonic lithography of graphene oxide film

Graphene analogues such as graphene oxide (GO) and its reduced forms (rGO) are fascinating carbon materials due to the complementary properties endowed by the sp3-sp2 interconversion, revealing the substitutability and potential ...

Materials Science May 27, 2020

Hotel Ruthenium: how hydrogen checks in but never leaves

How does hydrogen form blisters in ruthenium mirrors for extreme UV (EUV) lithography machines? An M2i research project by Chidozie Onwudinanti and colleagues at DIFFER, Eindhoven University of Technology and University of ...

Optics & Photonics May 26, 2020

Chirality-assisted lateral momentum transfer for bidirectional enantioselective separation

Light carrying photon momentum can push and pull microparticles through momentum exchange. This momentum exchange process generates optical forces, which either attracts (conventional optical tweezers), pushes (radiation ...

Optics & Photonics May 26, 2020

Saturable plasmonic metasurfaces for laser mode locking

Plasmonic metasurfaces are artificial 2-D sheets of plasmonic unit cells repeated in a subwavelength array, which give rise to unexpected wave properties that do not exist in nature. In the linear regime, their applications ...

Nanomaterials May 21, 2020

A replaceable, more efficient filter for N95 masks

Since the outbreak of COVID-19, there's been a worldwide shortage of face masks—particularly, the N95 ones worn by health care workers. Although these coverings provide the highest level of protection currently available, ...

Bio & Medicine May 20, 2020

New integrated device for nanometer-scale sensing

Researchers at Eindhoven University of Technology have developed a new, integrated optical sensor that provides increased resolution in measurements and paves the way for fully integrated and compact optical sensors including ...

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