arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1204.4972physics.atom-phphysics.optics
收藏

光与原子相干相互作用下的瑞利散射

Rayleigh scattering under light-atom coherent interaction

Akifumi Takamizawa, Koichi Shimoda

摘要:

对二能级原子中诱导的振荡偶极子的半经典计算表明,在相干相互作用下,瑞利散射具有与由非相干过程产生的自发发射相当的功率水平。自发发射几乎是各向同性的,并且通常具有随机偏振,而瑞利散射是强各向异性的,并且与入射光相关联地偏振。当Rabi频率远大于频率失谐量和自发发射率时,当自发发射功率在Rabi频率处随时间变化时,瑞利散射的功率在Rabi频率的两倍处振荡。此外,当频率失谐较大时,由于瑞利散射作用于原子的辐射压力超过由自发发射引起的辐射压力。

英文摘要:

Semi-classical calculation of an oscillating dipole induced in a two-level atom indicates that spherical radiation from the dipole under coherent interaction, i.e., Rayleigh scattering, has a power level comparable to that of spontaneous emission resulting from an incoherent process. Whereas spontaneous emission is nearly isotropic and has random polarization generally, Rayleigh scattering is strongly anisotropic and polarized in association with incident light. In the case where Rabi frequency is much larger than frequency detuning and spontaneous emission rate, while the power of spontaneous emission varies with time at the Rabi frequency, the power of Rayleigh scattering oscillates at twice the Rabi frequency. Moreover, the radiation pressure force acting on an atom due to Rayleigh scattering exceeds that caused by spontaneous emission when frequency detuning is large.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑