A detailed description of a picosecond pump-probe optoelectronic pulsing (generating electromagnetic transients in free space) and sampling system is presented. This system will be used for spectroscopy in a [10-100]-GHz range of materials such as semiconductors. The signal-to-noise ratio obtained in this system is greater than 40 dB and the time resolution can be less than 500 fs, thereby permitting studies of very fast, low-amplitude transient phenomena. For microdevices separated by 5 cm an E peak field amplitude of 80 V/m is detected.
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机译：皮秒泵浦探针光电脉冲（在自由空间中产生电磁瞬变）和采样系统的详细说明。该系统将用于光谱范围为[10-100] -GHz的材料，例如半导体。在该系统中获得的信噪比大于40 dB，时间分辨率可以小于500 fs，从而可以研究非常快速的低振幅瞬态现象。对于相距5 cm的微型设备，检测到的E峰值场振幅为80 V / m。
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