Patent ID: 6847448
Filing Date: 2005-01-25
Classification: G01J,G01N

Abstract:
1. A polarization analyzing apparatus characterized in having: a light source for generating optical pulses; a light dividing part for dividing optical pulses emitted from said light source; an electromagnetic wave radiation part for inputting one of divided optical pulses and radiating an electromagnetic wave; a collimation part for collimating the radiated electromagnetic wave; a polarizer part for inputting the collimated electromagnetic wave and letting a polarized electromagnetic wave pass therethrough, and also capable of switching over its polarization plane; a light analyzer part for inputting said polarized electromagnetic wave inflected from a sample and letting the reflected polarized electromagnetic wave component pass therethrough; a condenser part for condensing said passing polarized electromagnetic wave component; an optical time-delay part for variably causing a time-delay in the other divided optical pulses; an electromagnetic wave detector part for inputting said condensed polarized electromagnetic wave component and said time-delayed other optical pulses, and converting said condensed polarized electromagnetic wave component into an electrical signal; and a calculation part which Fourier-transforms time-resolved waveforms obtained by time-resolving said electrical signals of s- and p-polarized electromagnetic waves reflected from the sample, and calculates amplitude and phase information of the s- and p-polarized electromagnetic waves.