1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

EM pressure wave

  1. Jan 27, 2008 #1
    Hello, is it possible to create a pressure wave from any form of electromagnetic radiation that travels inward to a central point emanating from a spherical surface.

    Also, the pressure wave must not be produced from explosives that are imploding.
    Last edited: Jan 27, 2008
  2. jcsd
  3. Jan 27, 2008 #2


    User Avatar

    You are describing the attempts at laser induced fusion.
  4. Jan 27, 2008 #3


    User Avatar
    Staff Emeritus
    Science Advisor

    The pressure due to photons depends on the energy of the photons and the intensity (number of photons) or flux (number of photons/unit area).

    In the inertial confinement scheme using lasers (and even electron beams), it is not the pressure from photons, but the ablation of an outer layer as a consequence of rapid heating and energy deposition that provides the pressure (impulse) on the fuel target.
  5. Jan 27, 2008 #4
    Thanks guys!!!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook