【摘要】 利用均匀加宽介质中的光谱烧孔效应在红宝石晶体中观测到了最慢为27·55±0·05m/s的极慢光速.且介质中光传输的群速度与激光的调制频率、激光光功率以及晶体的晶格方向有关.调制频率越低、相互作用越强,介质中的光速越慢.更多还原

【Abstract】 With the spectral hole_burning effect resulting from coherent population oscillation in the homogenously broadened material, the ultraslow light propagation phenomenon with the group velocity as slow as 27.55±0.05m/s at room temperature in a ruby crystal is observed. And the group velocity in ruby crystal depends on the amplitude modulation frequency, the power of laser beam and the orientation of the crystal lattice. Lower frequency or higher power leads to slower group velocity.更多还原