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The high power THz radiation and high magnetic field is very promising combination from scientific perspective, however the design of an experimental setup inside high-field Bitter magnet is challenging task because of the space limitation. Therefore, the THz beam profile after broadband waveguides plays a key role. We experimentally study the behavior of THz-field profiles after oversized circular...
For the first time, we demonstrate heterodyne EO sampling of terahertz pulses in a DAST crystal. Compared with lithium niobate, which was used in our previous heterodyne EO sampling studies, organic DAST crystal has a 1.5 times larger EO coefficient. Our experimental results demonstrate that DAST is a very promising material for highly sensitive terahertz EO sampling.
We present a feasibility study of THz surface emission from semiconductors as a mapping tool for magnetic field distribution. Using a standard THz time-domain spectroscopy setup, the THz emission of indium antimonide (InSb) was systematically measured at different points of an external magnetic field. The initial results suggest promising directions in developing a THz emission-based magnetic field...
A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser facility. Monochromatic laser radiation with a bandwidth of about 1% can be tuned within the spectral ranges of 90–240 and 30–90 μΜ. The laser emits radiation as a continuous stream of 100-ps pulses with a repetition rate of 5.6 MHz. The average radiation power can reach 100 W. The temperature of samples...
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