Fast THz-TDS Reflection Imaging with ECOPS scheme

Marcin Maciejewski,Marek Piszczek,Przemyslaw Zagrajek,Michal Walczakowski,Elzbieta Czerwinska,Norbert Palka

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)（2022）

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摘要

We demonstrate high-speed terahertz time domain spectroscopy imaging in reflection configuration with use of electronically controlled optical sampling scheme. We employ Toptica TERAFLASH platform with fibre optic fed photoconductive switches (transmitter and receiver) based on InGaAs. The device can measure up to 1600 terahertz pulses per second. The fast movement of the sample was provided by two fast speed motorized linear stages. The acquisition of the 50 x 50 cm sample with resolution of 1.3 mm lasted about 14 minutes.

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关键词

receiver,terahertz pulses,fast THz-TDS reflection imaging,ECOPS scheme,high-speed terahertz time domain spectroscopy imaging,reflection configuration,electronically controlled optical sampling scheme,Toptica TERAFLASH platform,transmitter,fast speed motorized linear stages,fibre optic fed photoconductive switches,size 50.0 cm,InGaAs

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