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Terahertz reflection imaging with the laser operating in TEM01 mode and large area detector was investigated. Imaging of high spatial resolution targets with up to diffraction limited resolution was demonstrated. Imaging system was also illustrated to be suitable to identify defects in silicon solar cells.
We report combined wavefront detection and beam profiling of single-cycle terahertz (THz) pulses. In our system, the electric field is recorded highly resolved in two spatial and one temporal dimension before and after propagation through an optical component. Using this approach, we examine the imaging properties of a hyperhemispherical silicon lens as it is commonly used in THz dipole antennas....
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