… , 1/f, of its constituent waves, we can consider it as a continuous wave in its duration A. The
… modulated sound wave. Therefore, Iz of the ultrasonic beam of tonebursts can be written as …

… A focused beam could be described by a superposition of plane waves in the momentum …
, because (i) even for the strongly focused beams considered below, the major part of the …

… Two conventional cylindrical lenses are used to focus the excitation light. The best focused
beam stripe width on sample is estimated to be 5025 μm. The edge emitted light from the …

… 4-fold as compared to a regularly focused beam, which reduces the intensity gradient. In
most cases, the doughnut-shape of the STED beam is unfavorable for optical trapping. Besides, …

… a single continuous-wave (cw) focused green laser beam. … remain in the crystals after the
focused light is switched off and … taken into account when focused light beams are utilized, eg, …

… , the maximum gain obtained is 29 dB with a sheet beam of 30.9 kV, 0.82 A, and the … beam
is verified successfully, which benefits from adopting periodic cusp magnet (PCM) focusing, …

… In order to simplify the discussion, we focus on a Gaussian beam application, which can
easily be calculated. The TEM00 focal beam radius o0 and the beam radius oz at a distance Dz …

… decreased level of the beam losses (<5%). A mechanism for continuous wave H − beam
focusing due to space charge overcompensation and beam compression by electrostatic forces …

… laser beam. As has been indicated by Ashkin, an object can be trapped by a focused laser
beam… In general, the force generated with a focused beam is represented as the summation of …

… studied when they are focused by a lens or using electronic focusing. In this … beam axis)
was produced using a focused plane wave in transmit and a focused zerothorder Bessel beam …