DRAG ACCOMPANYING 3-PHOTON ABSORPTION OF CIRCULARLY-POLARIZED LIGHT IN P-GE

The effect of the polarization on current-carrier drag accompanying th ree-photon absorption of submillimeter light (lambda=90 mu m) in p-Ge crystals at room temperature is investigated. Comparing the theoretica l and experimental dependences of the current caused by the dragging o f holes by photons on the intensity and polarization of the exciting l ight made it possible to separate and compare the contributions associ ated with one-, two-, and three-photon transitions to the linear absor ption of light. (C) 1996 American Institute of Physics.