3 papers
physics.optics2003
Polarization of tightly focused laser beams
John Lekner
The polarization properties of monochromatic light beams are studied. In contrast to the idealization of an electromagnetic plane wave, finite beams which are everywhere linearly p…
physics.optics2003
Phase and transport velocities in particle and electromagnetic beams
John Lekner
In a coherent monoenergetic beam of non-interacting particles, the phase velocity and the particle transport velocity are functions of position, with the strongest variation being…
physics.optics2003
Electromagnetic pulses which have a zero momentum frame
John Lekner
One set of the Ziolkowski family of exact solutions of the wave equation are shown to represent pulses propagating with momentum smaller than energy/c. This is explicitly demonstra…