期刊论文详细信息
Excitation-power-dependent spectral shift in photoluminescence in dye molecules in strongly scattering optical media | |
Article | |
关键词: LASER ACTION; GAIN MEDIA; COHERENT BACKSCATTERING; STIMULATED-EMISSION; WEAK LOCALIZATION; LIGHT; | |
DOI : 10.1103/PhysRevB.59.50 | |
来源: SCIE |
【 摘 要 】
Photoluminescence spectra and the reflectivity of incident light were examined in dye molecules in strongly scattering media. With increasing incident light intensity, the spectra show red- and blueshifts depending on the geometry of experiments, and the reflectivity increases nonlinearly. These excitation-power-dependent spectral shifts and nonlinear reflectivity are well explained when we consider saturation absorption in the excitation process and the reabsorption in the luminescence process in dyes. [S0163-1829(99)14701-5].
【 授权许可】
Free