Femtosecond chirp-variable apparatus using a chirped mirror pair for quantum coherent control
Femtosecond chirp-variable apparatus using a chirped mirror pair for quantum coherent control
复制标题
使用啁啾镜对进行量子相干控制的飞秒啁啾变量装置
DOI：
10.1016/j.optcom.2004.05.031
复制
发表时间：
2004
影响因子：
2.4
通讯作者：
R. Lang
中科院分区：
文献类型：
--
作者：
I. Matsuda;K. Misawa;R. Lang
我们提出了一种利用啁啾镜对精确控制脉冲啁啾率的飞秒啁啾可变装置。该装置简单、易于使用、紧凑，具有高能量耐久性和低插入损耗。负啁啾可以通过数字方式添加到脉冲中，而不会导致输出光轴发生偏移，这使得啁啾镜每次反射时的群速度色散为−41 fs 2。整个装置尺寸为180 mm×76 mm，啁啾镜的反射率和损伤阈值分别为99.5%和0.6 J/cm 2。利用这种啁啾可变装置，在菁染料分子（IR-140）中观察到啁啾依赖的荧光。该装置开辟了一个新的可能性，操纵光学相位信息。
We demonstrate a femtosecond chirp-variable apparatus with a chirped mirror pair to manipulate the chirp rate of pulses precisely. The apparatus is simple, easy-to-use, and compact with high energy durability and low insertion loss. Negative chirp can be added to the pulse digitally without a deviation of the output optical axis, which gives the group velocity dispersion of −41 fs2at each reflection on the chirped mirror. The whole apparatus dimension is 180 mm×76 mm. The reflectively and damage threshold of the chirped mirror are 99.5% and 0.6 J/cm2, respectively. Using this chirp-variable apparatus, a chirp-dependent fluorescence in cyanine dye molecules (IR-140) is observed. The apparatus opens a new possibility to manipulate optical phase information.