论文标题
使用准PT对称耦合从活跃拉曼介质中撤离活跃的拉曼介质的热量疏散
Heat Evacuation from Active Raman Media Heat Evacuation from Active Raman Media Using Quasi-PT Symmetry Coupling
论文作者
论文摘要
我们建议使用频率选择性的准平价对称性来减少与相位不匹配的活性拉曼介质中相干反stokes拉曼散射（CAR）反向周期产生的热量。这是使用耦合的波导结构（包括活性的拉曼波导（RW）来完成的，其中Stokes信号通过刺激的Stokes Raman散射（SSR）和耗散的波导（DW）进行放大，并通过对抗stokes wavellength进行调谐，以逃离抗抗Antive antiing Antive the Antive the antive the antiing s-Stokes cun con cons con con con the s-Stokes。 DW引入了光学损失，该光损失部分抵消了RW中抗Stokes信号的生长，因此抑制了反向的汽车循环，否则这些循环将导致RW中的热量产生。结果表明，当RW和DW之间的最佳耦合水平弥补了汽车相位的不匹配时，DW提供的频率选择性平均时间对称性可以减少高达5个。
We propose to use frequency-selective quasi parity-time symmetry to reduce the heat generated by coherent anti-Stokes Raman scattering (CARS) reversed cycles in active Raman media with phase mismatch. This is accomplished using a coupled-waveguide structure, which includes the active Raman waveguide (RW), where the Stokes signal undergoes amplification via stimulated Stokes Raman scattering (SSRS), and a dissipative waveguide (DW), which is tuned to the anti-Stokes wavelength so as to evacuate the corresponding anti-Stokes photons from the RW by coupling. The DW introduces optical loss that partially offsets the growth of the anti-Stokes signal in the RW and hence suppress the reversed CARS cycles that would otherwise result into heat generation in the RW. It is shown that the frequency-selective quasi parity-time symmetry provided by the DW can reduce the heat in active Raman media by a very factor of up to five when the CARS phase mismatch is compensated for by the optimum level of coupling between the RW and the DW.
