THz-TDS using a photoconductive free-space linear tapered slot antenna transmitter
نویسندگان
چکیده
منابع مشابه
A Broadband THz-TDS System Based on DSTMS Emitter and LTG InGaAs/InAlAs Photoconductive Antenna Detector
We demonstrate a 4-f terahertz time-domain spectroscopy (THz-TDS) system using an organic crystal DSTMS as the THz emitter and a low temperature grown (LTG) InGaAs/InAlAs photoconductive antenna as the receiver. The system covers a frequency range from 0.2 up to 8 THz. The influences of the pump laser power, the probe laser power and the azimuthal angle of the DSTMS crystal on the time-domain T...
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Since the observation of radiation in the Terahertz (THz) frequency range from photoconductive antennas exited by femtosecond (fs) laser pulses, considerable efforts have been made to understand the mechanism responsible for THz generation, and to develop applications in THz Time-Domain Spectroscopy (THz-TDS). In this paper, the calculation of THz radiation from biased photoconductive antenna i...
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Linear tapered slot antennas (LTSAs) have been widely investigated as typical examples of coplanar antennas because the LTSAs offer the advantages of wide impedance bandwidth, high gain, and easy fabrication [1], [2]. However, they have high back lobes in the E-plane [3]. In general, the LTSAs are very sensitive to the thickness and the width of their supporting substrate. It is shown that radi...
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For polarization measurement of terahertz (THz) electromagnetic radiation we conventionally have been using a set of wire-grid polarizers. In the THz time domain spectroscopy (TDS) measurements, such a method requires twice of the time-delay scans, which is time consuming and can be the origin of the systematic error caused by the intensity fluctuation of laser. In addition, the efficiency of a...
متن کاملSlot Antenna Fed by a Cpw Line with Tapered Transition
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ژورنال
عنوان ژورنال: Optics Express
سال: 2017
ISSN: 1094-4087
DOI: 10.1364/oe.25.010118