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Characteristic of the ultra‐wideband electromagnetic radiation generated by PCSS
Author(s) -
Ruan Chi,
Zhao Wei,
Chen GuoFu,
Zhu ShaoLan
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22393
Subject(s) - picosecond , microwave , laser , optoelectronics , jitter , electromagnetic pulse , ultrashort pulse , femtosecond , wideband , pulse (music) , optics , semiconductor , materials science , physics , electrical engineering , engineering , detector , quantum mechanics
A novel ultra‐wideband electromagnetic pulse generating method based on the photoconductive semiconductor switches (PCSS) is presented. Gallium arsenide is used to develop the PCSS for an ultrashort electromagnetic pulse source. The pulse generated by such PCSS is within picosecond (ps) time scale, and can yield power pulse with an voltage over 10 kV. The experimental results show that the pulses are stable, with the peak–peak amplitude change of 6% and the time jitter within several picoseconds. The radiations of the PCSS triggered by the picosecond laser and femtosecond laser pulse series illustrate that the electromagnetic pulses would have high repetition of more than 80 MHz and frequency bandwidth of DC‐6 GHz. The radiations of “lock‐on” mode of the PCSS are also analyzed here. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1118–1122, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI.10.1002/mop.22393