Intense longitudinal electric fields generated from transverse electromagnetic waves

Miyaji, Godai; Miyanaga, Noriaki; Tsubakimoto, Koji; Sueda, Keiichi; Ohbayashi, Ken
May 2004
Applied Physics Letters;5/10/2004, Vol. 84 Issue 19, p3855
Academic Journal
We present a simple method for generating an intense longitudinal electric field from transverse electromagnetic waves (laser pulses) with radially symmetric polarization, to which a liquid crystal device converts linear polarization with energy efficiency of ∼99%. The laser-generated longitudinal electric field was observed in two dimensions and distinguished from the transverse component using the optical Kerr shutter method. The measured amplitude was 1.1 GV/m at the focus of a pulsed Nd:YAG laser beam of 0.25-MW peak-power.


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