Patent ID: 8993967
Filing Date: 2015-03-31
Classification: G01N

Abstract:
1. An electromagnetic wave detection device comprising: a light source which outputs probe light pulses; a beam diameter changing optical system which changes a beam diameter of the probe light pulses output from the light source; a pulse front tilting unit which tilts a pulse front of the probe light pulses output from the beam diameter changing optical system; a beam diameter adjusting optical system which adjusts a beam diameter of the probe light pulses output from the pulse front tilting unit; an optical effect unit which is input with the probe light pulses output from the beam diameter adjusting optical system and is input with an electromagnetic wave being an object to be detected, optical characteristics of which change due to propagation of the electromagnetic wave, and which outputs the probe light pulses affected by the change in optical characteristics; and a photodetector which detects the probe light pulses output from the optical effect unit.