Search results for photonics and optics

Optics & Photonics May 25, 2022

Highly efficient acousto-optic modulation using non-suspended thin-film lithium niobate-chalcogenide hybrid waveguides

Traditional acousto-optic (AO) devices based on bulk crystal materials have weak energy confinement abilities for both photons and phonons, leading to a low AO interaction strength. Compared with bulk materials, photonic ...

Optics & Photonics May 20, 2022

Mixing laser beams and X-ray beams

Unlike fictional laser swords, real laser beams do not interact with each other when they cross—unless the beams meet within a suitable material allowing for nonlinear light-matter interaction. In such a case, wave mixing ...

Quantum Physics May 13, 2022

More efficient optical quantum gates

Future quantum computers are expected not only to solve particularly tricky computing tasks, but also to be connected to a network for the secure exchange of data. In principle, quantum gates could be used for these purposes. ...

Optics & Photonics May 10, 2022

Researchers use light for thermomagnetic recording on silicon waveguide

Researchers have demonstrated, for the first time, light-induced thermomagnetic recording in a magnetic thin-film on silicon waveguides. The new writing technique is poised to enable miniature high-performance magneto-optical ...

Optics & Photonics May 2, 2022

Photons can enable real-time physical random bit generation for information security app

Cryptographic systems and information security rely on unpredictable, unmanipulable random bits that are physical in nature. Especially in the context of private key systems that enable unconditional security via "one-time-pad" ...

Optics & Photonics May 2, 2022

'Atomic photon source' based on the movement of atoms

Compact, CMOS compatible on-chip photon sources have attracted much attention to the scientific community and the semiconductor industry. As the transistor's feature size is continuously scaling down, the integration density ...

Condensed Matter Apr 29, 2022

Ultrafast optical-magnetic memory device

Magnetic random-access memory (MRAM) technology offers substantial potential towards next-generation universal memory architecture. However, state-of-the-art MRAMs are still fundamentally constrained by a sub-nanosecond speed ...

General Physics Apr 21, 2022

Study introduces loss-free matter-wave polaritons in an optical lattice system

Polaritons are quasiparticles that are formed when photons couple strongly with excitations of matter. These quasi-particles, which are half-light and half-matter, underpin the functioning of a wide range of emergent photonic ...

Polymers Apr 13, 2022

New polymer materials make fabricating optical interconnects easier

Researchers have developed new polymer materials that are ideal for making the optical links necessary to connect chip-based photonic components with board-level circuits or optical fibers. The polymers can be used to easily ...

Optics & Photonics Apr 11, 2022

Study highlights the possibility of building wave-shape-tolerant qubit gates

Quantum computers, machines that leverage quantum states to perform computations and store data, could soon revolutionize the computing industry, achieving significantly greater speeds and performance than existing computers. ...

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