排序方式: 共有4条查询结果,搜索用时 0 毫秒
1
1.
本文从理论角度论证了飞秒激光作为光镊光源的可行性,给出了飞秒激光作用时微粒所受力理论计算公式,并在此基础上给出了对应于不同参数的光镊稳定性图形。我们还进一步分桥了飞秒激光作为光镊光属相对于其他激光的特有性质。 相似文献
2.
In this letter, we describe a coherent subpicosecond terahertz (THz) spectroscopy system based on nonresonant optical rectification for the generation of THz radiation. We studied the two-photon absorption (TPA) of ZnTe induced by femtosecond laser pulses via THz generation, and its influence on the generation of THz radiation. Experimental results demonstrated that the intensity of pump beam against TPA must be traded off to get an optimum generation of THz radiation. As an example, we measured absorption spectrum of water vapor by time-domain spectroscopy (TDS) in the frequency range from 0.5 to 2.5 THzwith a high overall accuracy. 相似文献
3.
Experimental study on terahertz radiation 总被引:5,自引:0,他引:5
In this letter, we describe a coherent subpicosecond terahertz (THz) spectroscopy system based on non-resonant optical rectification for the generation of THz radiation. We studied the two-photon absorption (TPA) of ZnTe induced by femtosecond laser pulses via THz generation, and its influence on the generation of THz radiation. Experimental results demonstrated that the intensity of pump beam against TPA must be traded off to get an optimum generation of THz radiation. As an example, we measured absorption spectrum of water vapor by time-domain spectroscopy (TDS) in the frequency range from 0.5 to 2.5 THz with a high overall accuracy. 相似文献
4.
1