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PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

Inspired Chaos in a Microlaser

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WÜRZBURG, Germany, June 24, 2011 — Using a mirror to continually send a fraction of the emitted light back into a quantum dot microlaser, researchers were able to throw the light emission process off-kilter, prompting the microlaser to emit photons in a chaotic pulse sequence. This unique property may open doors to a new, secure form of data transmission. “This chaos is extremely interesting from a fundamental physics point of view,” said Stephan Reitzenstein, a physicist at the University of Würzburg who collaborated with Israeli colleague Ido Kanter. “It might be used in the future for optical...Read full article

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    Published: June 2011
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    quantum dots
    A quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium arsenide, that exhibits unique quantum mechanical properties. These properties arise from the confinement of electrons within the dot, leading to discrete energy levels, or "quantization" of energy, similar to the behavior of individual atoms or molecules. Quantum dots have a size on the order of a few nanometers and can emit or absorb photons (light) with precise wavelengths,...
    chaotic pulse sequencedata transmissionenergyEuropeGermanyIdo Kanterinspired chaosLight Sourcesmicrolasernanonanolaseroptical amplifiersoptical switchquantum dotsquantum lightResearch & Technologysemiconductor lasersStephan ReitzensteinUniversity of WürzburgLasers

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