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Light Drives Nanomachines

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NEW HAVEN, Conn., Nov. 26, 2008 -- By combining two emerging fields -- nanophotonics and nanomechanics -- researchers have shown that the force of light can be harnessed to drive machines at the nanoscale. Nanophotonics and nanomechanics make possible the extreme miniaturization of optics and mechanics on a silicon chip. This new research, led by scientists at the Yale School of Engineering & Applied Science, opens the door to a new class of semiconductor devices that are operated by the force of light. They envision a future where this process powers quantum information processing and sensing devices, as well as...Read full article

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    Published: November 2008
    Glossary
    chip
    1. A localized fracture at the end of a cleaved optical fiber or on a glass surface. 2. An integrated circuit.
    light
    Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm. In photonic applications light can be considered to cover the nonvisible portion of the spectrum which includes the ultraviolet and the infrared.
    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.
    photon
    A quantum of electromagnetic energy of a single mode; i.e., a single wavelength, direction and polarization. As a unit of energy, each photon equals hn, h being Planck's constant and n, the frequency of the propagating electromagnetic wave. The momentum of the photon in the direction of propagation is hn/c, c being the speed of light.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    power
    With respect to a lens, the reciprocal of its focal length. The term power, as applied to a telescope or microscope, often is used as an abbreviation for magnifying power.
    quantum
    The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the atomic and subatomic scales. It originates from quantum theory, a branch of physics that emerged in the early 20th century to explain phenomena observed on very small scales, where classical physics fails to provide accurate explanations. In the context of quantum theory, several key concepts are associated with the term quantum: Quantum mechanics: This is the branch of...
    chipCommunicationsenergyHong Tangintegrated circuitslightmachineryMo LinanonanomechanicsnanoscaleNews & Featuresoptical forceparticlesphotonphotonicphotonicspowerquantumSAILsemiconductorssensingsiliconspacetelecommunicationstransistorsYale

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