Generalized beam quality factor of aberrated truncated Gaussian laser beams

Generalized beam quality factor of aberrated truncated Gaussian laser beams.

We outline a theory for the calculation of the beam quality factor of an aberrated laser beam. We provide closed-form equations that show that the beam quality factor of an aberrated Gaussian beam depends on all primary aberrations except tilt, defocus, and x-astigmatism. The model is verified experimentally by implementing aberrations as digital holograms in the laboratory.

Axicon Gaussian Laser Beams

If a laser beam is to have radial transverse polarization, the transverse electric must vanish on the symmetry axis, which is charge free. However, we can expect a nonzero longitudinal electric field on the axis, considering that the rays of the beam that converge on its focus each has polarization transverse to the ray, and hence the projections of their electric fields onto the axis all have ...

A computational investigation of the impact of aberrated Gaussian laser pulses on electron beam properties in laser-wakefield acceleration experiments

Gaussian Laser Beams with Radial Polarization

If a laser beam is to have radial transverse polarization, the transverse electric must vanish on the symmetry axis, which is charge free in vacuum. However, we can expect a nonzero longitudinal electric field on the axis, noting that the projections onto the axis of the electric field vectors of rays all have the same sign, as shown in Fig. 2a. This contrasts with the case of linearly polarize...

Gaussian Laser Beams via Oblate Spheroidal Waves

Gaussian beams provide the simplest mathematical description of the essential features of a focused optical beam, by ignoring higher-order effects induced by apertures elsewhere in the system. Wavefunctions ψ(x, t) = ψ(x)e−iωt for Gaussian laser beams [1, 2, 3, 4, 5, 6, 7, 10, 11, 12] of angular frequency ω are typically deduced in the paraxial approximation, meaning that in the far zone the fu...