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View Diary: Overnight News Digest 10/18/2013 (42 comments)

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  •  5MHz > 40GHz (6+ / 0-)

    http://wiki.answers.com/...

    What is the frequency range of optical fiber?

    40 GHz

    In: Electronics Engineering

    What is the frequency of a video frequency oscillator?

    5MHz

    In: Satellite Television | Electronics Engineering | Radio | Waves Vibrations and Oscillations

    We’re enablers. We’ve become enablers. We can’t be that anymore. ~ Minority Leader Nancy Pelosi, D-CA

    by anyname on Fri Oct 18, 2013 at 09:49:12 PM PDT

    [ Parent ]

    •  dielectric (6+ / 0-)

      http://en.wikipedia.org/...

      artificial dielectrics

      http://en.wikipedia.org/...

      dielectrics

      http://en.wikipedia.org/..._(electrical)

      insulator

      The term insulator is generally used to indicate electrical obstruction while the term dielectric is used to indicate the energy storing capacity of the material (by means of polarization).

      http://en.wikipedia.org/...
      capacitor

      Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass

      http://dictionary.die.net/...
      Source: WordNet (r) 1.7

      dielectric
           n : a material such as glass or porcelain with negligible
               electrical or thermal conductivity [syn: insulator, nonconductor]
               [ant: conductor]

      Source: Webster's Revised Unabridged Dictionary (1913)

      Dielectric Di`e*lec"tric, n. [Pref. dia- + electric.] (Elec.)
         Any substance or medium that transmits the electric force by
         a process different from conduction, as in the phenomena of
         induction; a nonconductor. separating a body electrified by
         induction, from the electrifying body.

      materials, which interact at radio frequency, microwave and later, optical frequencies

      http://www.nae.edu/...
      Optical Antennas: A New Technology that can Enhance Light-Matter Interactions

      Antennas in the optical range will improve the efficiency of light-emitting devices.

      The purpose of optical antennas is to convert the energy of free propagating radiation to localized energy, and vice versa.

      Although this is similar to what radio wave and microwave antennas do, optical antennas exploit the unique properties of metal nanostructures, which behave as strongly coupled plasmas at optical frequencies.

      It is hoped that optical antennas can increase the efficiency of light-matter interactions in important applications, such as light-emitting devices, photovoltaics, and spectroscopy.

      http://www.answers.com/...

      optic frequency

      (physics) A frequency comparable to that of electromagnetic waves in the optical region, above about 3 × 1011 hertz.
      Read more: http://www.answers.com/...
      What is the frequency in a frequency table?

      Answer:

      The frequency in a frequency table is the number of occurrences within each class width. The total frequency is the sum of all frequency's within all the classes.

      We’re enablers. We’ve become enablers. We can’t be that anymore. ~ Minority Leader Nancy Pelosi, D-CA

      by anyname on Fri Oct 18, 2013 at 09:52:20 PM PDT

      [ Parent ]

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