Abstract
We have proposed and investigated InyGa1-yAs photoconductor grown by molecular-beam epitaxy on low-temperature step-graded metamorphic buffer. It exhibits superior bandwidth up to 6 THz and provides optical-to-terahertz conversion efficiency up to ~ 10−5 for rather low optical fluence ~ 40 μJ/cm2. The intensity of THz generation for the given structure is two orders higher than for lowtemperature grown GaAs due substantial contribution of photo-Dember effect.
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Schedule a callMore From: International Journal of High Speed Electronics and Systems
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