Search results for photonics and optics

Optics & Photonics Jul 8, 2021

The realization of topologically protected valley-dependent quantum photonic chips

The field of topological photonics, specialized in the development of a class of materials known as photonic topological insulators, has advanced considerably over the past few decades. Photonic topological insulators have ...

Quantum Physics Jul 7, 2021

Quantum particles: Pulled and compressed

Very recently, researchers led by Markus Aspelmeyer at the University of Vienna and Lukas Novotny at ETH Zurich cooled a glass nanoparticle into the quantum regime for the first time. To do this, the particle is deprived ...

Quantum Physics Jul 7, 2021

Researchers shed light on memory effects in multi-step evolution of open quantum system

In a study published in Physical Review Letters, academician Guo Guangcan's team from University of Science and Technology of China of the Chinese Academy of Sciences made progress in the open quantum system research. This ...

Optics & Photonics Jun 28, 2021

Multi-material, multi-photon 3D laser micro- and nanoprinting

Multi-photon approaches provide printing rates of up to about ten million voxels per second. Multi-photon-based 3D approaches structure matter with a resolution approaching sub-micrometer and nanometer feature sizes. Such ...

Quantum Physics Jun 10, 2021

Observing quantum coherence from photons scattered in free-space

Quantum coherence is a key ingredient of many fundamental tests and applications in quantum technology, including quantum communication, imaging, computing, sensing and metrology. However, the transfer of quantum coherence ...

Nanophysics Jun 9, 2021

Researchers tame silicon to interact with light for next-generation microelectronics

Skoltech researchers and their colleagues from RAS Institute for Physics of Microstructures, Lobachevsky State University of Nizhny Novgorod, ITMO University, Lomonosov Moscow State University, and A.M. Prokhorov General ...

General Physics May 20, 2021

We know the cost of free choice and locality—in physics and elsewhere

Do we have free choice or are our decisions predetermined? Is physical reality local, or does what we do here and now have an immediate influence on events elsewhere? The answers to these questions are sought by physicists ...

Optics & Photonics May 18, 2021

Crystalline supermirrors for trace gas detection in environmental science and medicine

In an international cooperation with partners from industry and research, physicists from the University of Vienna, together with Thorlabs, the National Institute of Standards and Technology (NIST), and the University of ...

Optics & Photonics May 13, 2021

Researchers 3D print complex micro-optics with improved imaging performance

In a new study, researchers have shown that 3D printing can be used to make highly precise and complex miniature lenses with sizes of just a few microns. The microlenses can be used to correct color distortion during imaging, ...

Optics & Photonics May 10, 2021

Active cavity solitons: Ultra-stable, high-power optical pulses for measuring light waves

Unlike the oscillations of sound waves, the oscillations of light are so fast that extremely complex equipment is needed to observe them directly. However, it is possible to measure the frequencies of these oscillations indirectly ...

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