Application of THz probe radiation in low-coherent tomographs based on spatially separated counterpropagating beams

作者：Kuritsyn I I^*; Mandrosov V I; Shkurinov A P; Nazarov M M; Cherkasova O P

来源：Quantum Electronics, 2013, 43(10): 958-967.

DOI：10.1070/QE2013v043n10ABEH014986

• THz radiation coherence
• holography
• tomography

A principle of designing a high-resolution low-coherent THz tomograph, which makes it possible to investigate media with a high spatial resolution (in the range lambda(0)-2 lambda(0), where lambda(0) is the average probe wavelength) is considered. The operation principle of this tomograph implies probing a medium by radiation with a coherence length of 8 lambda(0) and recording a hologram of a focused image of a fixed layer of this medium using spatially separated counterpropagating object and reference beams. Tomograms of the medium studied are calculated using a temporal approach based on application of the time correlation function of probe radiation.

• 出版日期2013