Shutova Mariia, Shutov Anton D, Zhdanova Alexandra A, Thompson Jonathan V, Sokolov Alexei V
Institute for Quantum Science and Engineering, Department of Physics and Astronomy, Texas A&M University, College Station, TX, 77843-4242, USA.
Sci Rep. 2019 Feb 7;9(1):1565. doi: 10.1038/s41598-018-38302-y.
We investigate the possibility of tailoring coherent Raman generated spectra via adaptive wavefront optimization. Our technique combines a spatial light modulator and a spectrometer providing a feedback loop. The algorithm is capable of controlling the Raman generation, producing broader spectra and an improved overall efficiency, and increasing the intensity of high-order sidebands. Moreover, by wavefront optimization we can extend the generated spectra towards the blue spectral region and increase the total power of generated sidebands. Mutual coherence and equal frequency separation of the multiple Raman sidebands are of interest for the synthesis of ultrashort light pulses with the total spectral bandwidth extending over ultraviolet, visible and near-infrared wavelengths.
我们研究了通过自适应波前优化来定制相干拉曼生成光谱的可能性。我们的技术将空间光调制器和光谱仪结合在一起，形成一个反馈回路。该算法能够控制拉曼生成，产生更宽的光谱并提高整体效率，还能增加高阶边带的强度。此外，通过波前优化，我们可以将生成的光谱扩展到蓝光光谱区域，并增加生成边带的总功率。多个拉曼边带的相互相干性和等频率间隔对于合成总光谱带宽覆盖紫外、可见和近红外波长的超短光脉冲具有重要意义。
