A helium-neon laser emits an unpolarized pulse of light carrying an energy of 0.35 Joules in 225 fs pulses (1 femtosecond = 10^-15 s). Each pulse encounters three polarizers as shown in the picture (polarization angles measured with respect to the vertical axis).
(a) What is the average power emitted by the laser during each pulse?
(b) If the beam is cylindrical with a 2.0mm diameter, find the average intensity Io of the pulse.
(c) Find ? such that the intensity after the third polarizer is 10% of the original intensity [the one in part (b).]
A helium-neon laser emits an unpolarized pulse of light carrying an energy of 0.35 Joules in...
The polarization of a helium-neon laser can change with time. The light from a 1.5 mW laser is initially horizontally polarized; as the laser warms up, the light changes to be vertically polarized. Suppose the laser beam passes through a polarizer whose axis is 35 ∘ from horizontal. By what percent does the light intensity transmitted through the polarizer decrease as the laser warms up?
A helium neon laser emits a light of 632.8 nm and its output is 3.2 mW. How many photons are emitted each minute by this laser
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A small helium-neon laser emits red visible light with a power of 5.50 mW in a beam that has a diameter of 2.70 mm Boas Value Units Submit Request Answer Part B What is the amplitude of the magnetic field of the light? 180 A2¢ * O2? Bm Submit Request Anawer - Part What is the average energy density associated with the electric field? Express your answer with the appropriate units. HÀO? Value Units Submit Request Answer Part D What...