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In optics, the complex beam parameter is a … In optics, the complex beam parameter is a complex number that specifies the properties of a Gaussian beam at a particular point z along the axis of the beam. It is usually denoted by q. It can be calculated from the beam's vacuum wavelength λ0, the radius of curvature R of the , the index of refraction n (n=1 for air), and the beam radius w (defined at 1/e2 intensity), according to: . Alternatively, q can be calculated according to where z is the location at which q is calculated, relative to the location of the beam waist, zR is the Rayleigh range, and i is the imaginary unit.yleigh range, and i is the imaginary unit.
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rdfs:comment |
In optics, the complex beam parameter is a … In optics, the complex beam parameter is a complex number that specifies the properties of a Gaussian beam at a particular point z along the axis of the beam. It is usually denoted by q. It can be calculated from the beam's vacuum wavelength λ0, the radius of curvature R of the , the index of refraction n (n=1 for air), and the beam radius w (defined at 1/e2 intensity), according to: . Alternatively, q can be calculated according to where z is the location at which q is calculated, relative to the location of the beam waist, zR is the Rayleigh range, and i is the imaginary unit.yleigh range, and i is the imaginary unit.
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rdfs:label |
Complex beam parameter
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