PICOSECOND PHASE CONJUGATE REFLECTIVITY OF GOLD COLLOIDS BY DEGENERATE 4-WAVE MIXING Academic Article uri icon

abstract

  • We measure the efficiency and phase of picosecond phase conjugate reflectivity by degenerate four-wave mixing for colloidal gold suspended in water and in glass. Evidence is found for extremely high (3) for the gold particles. However, the efficiency has a power dependence which is not increasing quadratically with pump energy. Small-scale lensing effects become significant at high pump energies. Additionally, both the glass-based and the water-based colloids show a visible "permanent" bleaching effect after absorbing only a few pulses of GW/cm2 intensity. 1990 American Chemical Society.

published proceedings

  • JOURNAL OF PHYSICAL CHEMISTRY

author list (cited authors)

  • DUTTON, T., VANWONTERGHEM, B., SALTIEL, S., CHESTNOY, N. V., RENTZEPIS, P. M., SHEN, T. P., & ROGOVIN, D.

citation count

  • 23

complete list of authors

  • DUTTON, T||VANWONTERGHEM, B||SALTIEL, S||CHESTNOY, NV||RENTZEPIS, PM||SHEN, TP||ROGOVIN, D

publication date

  • February 1990