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

Light Bursts Produce Firsts

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UPTON, N.Y., July 25, 2007 -- Generating ultrashort bursts of the strongest terahertz light to date has allowed the first observations of an optical phenomenon that could prove useful in a number of new light source technologies. The researchers said the work, which was done at Brookhaven National Laboratory's Source Development Laboratory, an offshoot of the lab's National Synchrotron Light Source (NSLS), could also prove invaluable in probing the ultrafast motion of atoms and electrons to reveal more about the properties of materials. National Synchrotron Light Source researchers Yuzhen Shen (left) and Larry Carr...Read full article

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    Published: July 2007
    Glossary
    electron
    A charged elementary particle of an atom; the term is most commonly used in reference to the negatively charged particle called a negatron. Its mass at rest is me = 9.109558 x 10-31 kg, its charge is 1.6021917 x 10-19 C, and its spin quantum number is 1/2. Its positive counterpart is called a positron, and possesses the same characteristics, except for the reversal of the charge.
    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.
    optical
    Pertaining to optics and the phenomena 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...
    terahertz
    Terahertz (THz) refers to a unit of frequency in the electromagnetic spectrum, denoting waves with frequencies between 0.1 and 10 terahertz. One terahertz is equivalent to one trillion hertz, or cycles per second. The terahertz frequency range falls between the microwave and infrared regions of the electromagnetic spectrum. Key points about terahertz include: Frequency range: The terahertz range spans from approximately 0.1 terahertz (100 gigahertz) to 10 terahertz. This corresponds to...
    atomBiophotonicsBrookhavencross-phase modulationdefenseelectronlightmolecularnanoNews & Featuresnonlinear optical effectsNSLSopticalphotonicsterahertzTHzultrafastYuzhen Shen

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