Effective electric-field force for a photon in a synthetic frequency lattice created in a waveguide modulator
Effective electric-field force for a photon in a synthetic frequency lattice created in a waveguide modulator
复制标题
波导调制器中创建的合成频率晶格中光子的有效电场力
DOI：
10.1103/physreva.97.063838
复制
发表时间：
2018-06-18
影响因子：
2.9
通讯作者：
Lu, Peixiang
中科院分区：
文献类型：
--
作者：
Qin, Chengzhi;Yuan, Luqi;Lu, Peixiang
在这里，我们为合成频率晶格中的光子创造了一个有效的电场力，以控制光的光谱。频率晶格是基于光波导调制器创建的，其中动态折射率调制可以在相邻晶格位置之间诱导光子跃迁。我们发现，光子跃迁中的波矢失配和调制相位的周期分布可以映射为线性变化的规范势和周期驱动的规范势，从而分别产生一个常数振荡力和一个简谐振荡力。在恒定力和振荡力的不同组合下，我们可以实现频率Bloch振荡、非简谐Bloch振荡、超Bloch振荡和定向频移的效果。通过适当选择振荡力的大小，也实现了频域内的动态局部化。有效力的实现提供了一种控制光谱的机制，它可能在频率完美成像、高效移位和精确转换等方面得到应用。
Here we create an effective electric field force for photon in a synthetic frequency lattice to control the spectrum of light. The frequency lattice is created based on an optical waveguide modulator in which the dynamic index modulation can induce photonic transitions between adjacent lattice sites. We showthat thewave vector mismatch during photonic transitions and periodic distribution of the modulation phase can be mapped into a linear-varying and a periodically driven gauge potential, which gives rise to a constant and a harmonic oscillating force, respectively. Under different combinations of the constant and oscillating forces, we can realize the effects of frequency Bloch oscillations, anharmonic Bloch oscillations, super-Bloch oscillations, and directional frequency shift. With an appropriate choice of the magnitude of the oscillating force, we also achieve dynamic localization in the frequency domain. The realization of effective force provides a mechanism to control the spectrum of light, which may find applications in frequency perfect imaging, efficient shifting, and precise transduction.