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Recent content by jjangdori

  1. J

    Gaussian profile of lase beam...???

    my lase has intensity of 5*10^12 W/m^2 How can I obtain the gaussian profle ?? beam diameter is 5*10^-5 m many thanks..
  2. J

    Intensity of Q-switched 20W laser ???

    You are so kind!!!!! Ok. my laser gives the intensity of about 0.5 GW/cm^2.. so, anywhere in laser spot, is it equl? I know that TEM00 laser has gaussian distribution... absolutely... The intensity at center of beam spot is higher than 0.5GW/cm^2 ?????
  3. J

    Intensity of Q-switched 20W laser ???

    Thank you so much for your great answer..... I know that the spot size is 50 micrometers. but I coun't find the pulse length... is it duration? if it is... How can I obtain the value of duration... the frequency of laser is 1064 nm....
  4. J

    Intensity of Q-switched 20W laser ???

    I use 20W laser q-switched at 200KHz. question 1) If something is exposured to the laser during 10 sec, how much energy does it absorb ? ignore the absorptance and emissivity. question 2) What does it-20W- mean ? Does it mean summation of energy of unit area in laser beam ?
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