Mohapatra A K, Jackson T R, Adams C S
Department of Physics, Durham University, Rochester Building, South Road, Durham DH1 3LE, United Kingdom.
Phys Rev Lett. 2007 Mar 16;98(11):113003. doi: 10.1103/PhysRevLett.98.113003. Epub 2007 Mar 15.
We demonstrate coherent optical detection of highly excited Rydberg states (up to n=124) using electromagnetically induced transparency (EIT), providing a direct nondestructive probe of Rydberg energy levels. We show that the EIT spectra allow direct optical detection of electric field transients in the gas phase, and we extend measurements of the fine structure splitting of the nd series up to n=96. Coherent coupling of Rydberg states via EIT could also be used for cross-phase modulation and photon entanglement.
我们利用电磁诱导透明（EIT）演示了对高激发里德堡态（高达n = 124）的相干光学探测，提供了一种对里德堡能级的直接无损探测方法。我们表明，EIT光谱允许对气相中的电场瞬变进行直接光学探测，并且我们将nd系列精细结构分裂的测量扩展到了n = 96。通过EIT实现的里德堡态的相干耦合还可用于交叉相位调制和光子纠缠。
