Wave Equation - web page for staff
... L. A Gaussian beam of diameter 0.5 cm to e-2 relavtive power density for λ = 0.63 μm is incident on the first lens. The value of L is constained such that the e-2 relative power density locus is contained within the aperture of the second lens. ...
... L. A Gaussian beam of diameter 0.5 cm to e-2 relavtive power density for λ = 0.63 μm is incident on the first lens. The value of L is constained such that the e-2 relative power density locus is contained within the aperture of the second lens. ...
Laser beam profiler
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers — ultraviolet, visible, infrared, continuous wave, pulsed, high-power, low-power — there is an assortment of instrumentation for measuring laser beam profiles. No single laser beam profiler can handle every power level, pulse duration, repetition rate, wavelength, and beam size.