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Current and carrier lifetimes as a function of the bias voltage in ion-irradiated photomixer.
Output power of ion-irradiated photomixers measured vs the frequency difference between the two lasers. The bias voltage was and the total optical power incident was . The left legend is the output power estimated using a sensitivity of the bolometer with its amplifier of .
Left: terahertz power at 0.15, 0.3, and vs voltage at a constant optical power of . Right: terahertz power at 0.15, 0.3, and vs optical power at a constant bias voltage of .
Terahertz powers as a function of dc photocurrent at .
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