What distance will the beam waist become 1 cm

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Reference no: EM13665315

1. Consider a Gaussian laser beam of wavelength 514.5 nm with a minimum spot size ?o= 2 mm located at z = 0
(a) At what distance will the beam waist become 1 cm?
(b) What is the radius of curvature of the wavefront at this position?
(c) Given that the power of the laser is 1 Watt, calculate the on axis laser intensity I and the amplitude of the electric field E at z = 0.
2. A Gaussian laser beam of wavelength 488 nm is measured to have a power of 10 Watt, with a minimum beam ?o= 2 mm waist located at z = 0
(a) At what distance will the beam waist become 4mm?
(b) An aperture of diameter 2??z? is centrally placed in front of the laser. What fraction of the 10-Watt power is allowed to transmit through the aperture?

Reference no: EM13665315

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