期刊
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
卷 20, 期 7, 页码 S134-S141出版社
IOP PUBLISHING LTD
DOI: 10.1088/0268-1242/20/7/003
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We give an overview of opto-electronic terahertz systems based on femtosecond amplifier lasers, and present a comparison of the relative performance and design issues of the various suitable downconversion photomixers employed for the generation of intense terahertz radiation pulses in such systems. The survey includes large-area biased semiconductor antennas, large-area nonlinear optical crystals and laser-generated gas plasmas as sources for terahertz radiation. The performance of these emitters is reviewed in terms of the terahertz pulse energies achieved and their associated spectral and signal-to-noise properties.
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