THz Research Benefits from Coherent Femtosecond Amplifier Power Case Study
■Introduction
●In the laboratory of Professor Rupert Huber at the University of Regensburg, a Coherent ultrafast amplifier model Legend Elite Duo is used to produce CEP-stabilized THz pulses. These pulses are used to probe the behavior of electrons in GaSe samples under the influence of transient THz fields approaching 100 MV/cm. By electro-optical “stroboscopic” gating of the resultant signal with a 8 fs pulse in a GaSe detector, the data yields important information about Bloch oscillations as well as coherent and interfering conductive mechanisms only revealed at these high fields and short time intervals [1]. This information can be used in the nascent field of coherent electronics and potential coherent THz-rate electronic computing. As a side benefit, the signal radiated from the sample will be shown to take the form of an extended “ladder” of high order harmonics uniquely covering from <0.1 THz in the far-infrared to 675 THz in the ultraviolet, all locked with complete phase stability, for use in photonic experiments. The high field amplitude and high-harmonic CEP-stable generation are enabled by the pulse energy and stability of the Legend Elite amplifier.
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2021/8/11 |
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543 KB |
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