Essential pump laser replacement for an ultrafast laser amplifier system

材料中的许多基本过程，如载流子光生、输运、弛豫和复合，都发生在皮秒时间尺度上。此外，与给定过程相关的特征能量标度在不同的材料系统之间可以有很大的不同。因此，为了更好地理解材料中的这种超快过程并研究它们在器件结构中的作用，有必要使用超快激光技术，以亚皮秒的时间分辨率在广泛的波长范围内激发和探测样品。在超快光谱实验室，我们使用高功率超快激光光源研究材料和器件中的超快现象，为了解新材料的性质以及器件的最终开关速度和响应时间提供有价值的见解。

Many fundamental processes in materials, such as charge carrier photogeneration, transport, relaxation, and recombination occur over picosecond time scales. In addition, the characteristic energy scales associated with a given process can vary greatly between different material systems. In order to better understand such ultrafast processes in materials and to study their effect in device structures, it is therefore essential to use ultrafast laser techniques that can excite and probe samples over a wide range of wavelengths with sub-picosecond time resolution. In the Ultrafast Spectroscopy Lab, we use high power ultrafast laser sources to study ultrafast phenomena in materials and devices, providing valuable insight into the nature of new materials and the ultimate switching speeds and response times of devices.