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Broadband and Enhanced-Output-Power Terahertz-Wave Emitter Based on Slot-Antenna-Integrated Uni-Traveling-Carrier Photodiode

机译:基于缝隙天线集成单行进载波光电二极管的宽带增强输出太赫兹波发射器

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Resonant slot-antennas were integrated with uni-traveling-carrier photodiodes (UTC-PDs) for increasing THz-wave output power with relatively broad bandwidths. The measured output power was two to three times larger at its peak frequency than that of a non-resonant bowtie-antenna-integrated device. Output power enhancement was achieved at frequencies from 900 GHz to 1.6 THz for a narrow-slot UTC-PD and from 350 to 850 GHz for a wide-slot UTC-PD. Typical output power was 3.5 μW at 1.25 THz and 28 μW at 700 GHz for a photocurrent of 10 mA with a bias voltage of -0.4 V.
机译:谐振缝隙天线与单行进载波光电二极管(UTC-PD)集成在一起,可在相对较宽的带宽下提高THz波输出功率。所测得的输出功率在其峰值频率处是非谐振领结天线集成设备的两倍至三倍。对于窄槽UTC-PD,在900 GHz至1.6 THz的频率下,对于宽槽UTC-PD,在350至850 GHz的频率上,实现了输出功率的增强。对于10 mA的光电流和-0.4 V的偏置电压,典型的输出功率在1.25 THz时为3.5μW在700 GHz下为28μW。

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