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Engineering Biphoton Wave Packets with an Electromagnetically Induced Grating

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 نشر من قبل Jianming Wen
 تاريخ النشر 2010
  مجال البحث فيزياء
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We propose to shape biphoton wave packets with an electromagnetically induced grating in a four-level double-$Lambda$ cold atomic system. We show that the induced hybrid grating plays an essential role in directing the new fields into different angular positions, especially to the zeroth-order diffraction. A number of interesting features appear in the shaped two-photon waveforms. For example, broadening or narrowing the spectrum would be possible in the proposed scheme even without the use of a cavity.



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