Tag Archives: Photonics

Quantum Metasurfaces Entangle Photons on Demand

When it’s modulated by laser beams, a surface made of polarizable meta-atoms can entangle a photon’s properties in multiple, controllable ways. Continue reading

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Optical Fiber Modes Resist Deformations

A machine-learning approach quickly characterizes an optical fiber, identifying transmission channels that aren’t affected by deformation. Continue reading

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An Optical System Defies Conventional Band Theory

Squeezed wave functions reshape an open quantum system’s
bulk-boundary properties and generate a new class of parity-time
symmetry. Continue reading

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Light Pulses Change Speed in a Plasma

Interactions between two laser beams in a plasma allow for precise
control over the light’s velocity. Continue reading

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Ultrabright Photons for Single-Chip Quantum Devices

A microcavity-based source of photon pairs achieves one hundred times the efficiency of state-of-the-art devices. Read more in APS Physics…

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Pulses of Light Accelerate in Free Space

A recipe for greatly accelerating a light pulse involves sculpting its
spectrum in space and time. Continue reading

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Toward a Perfect Single-Photon Source

Semiconductor quantum dot emits photons that are squeezed below the fundamental noise limit. Continue reading

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An Electrical Trigger Fires Single, Identical Photons

The precisely controlled photon source, made from an atomically thin semiconducting material, could aid the development of advanced quantum communication. Read more at Berkeley Lab…

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Coldest Electrons Ever from Photocathodes

Researchers have generated the coldest electrons to date from solid-state photocathodes, an achievement that could improve electron sources for particle accelerators and ultrafast electron microscopy applications.  Continue reading

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Ship shape

Welding ship hulls is a relatively new application for laser processing, but one where lasers can add great value.  Read more in Laser Systems Europe…

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