NONVANISHING FIELD BETWEEN A DIPOLE OSCILLATOR AND A REFLECTING BOUNDARY DURING SUPPRESSION OF DIPOLE RADIATION

Second-harmonic generation from a subwavelength-thick Langmuir-Blodget t film forms an effective dipole oscillator with an essentially one-di mensional radiation pattern. a reflecting boundary is used to suppress (similar to 80%) and enhance (similar to 70%) the total rate of radia tion from the system compared to its free-space value. The field ampli tude between the dipole and the boundary is directly sampled and found to be constant in value. independent of the total rate of radiation. Hence, a nonvanishing field exists inside the System even during suppr ession of radiation, i.e., when the system loses no energy. [S0031-900 7(97)05227-7].