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- W3120887688 abstract "High-power and broad-tunable terahertz wave generating source on chip, which has broad application prospects, remains an unachieved goal of researchers after decades of pursuing. Here, we propose a concept of terahertz laser diode, which is a dc-biased self-excited microelectronic laser oscillator using collectively modulated free electrons emitted by field-emitter-arrays as the active medium and using an inherent Fabry-P'erot interferometer formed by port reflections as the frequency selector. It is sub-millimeter to centimeter in size and can generate continuous-wave coherent terahertz radiation with several watts of power per square millimeter. Its frequency can be tuned to cover a wide terahertz band by changing the cathode-to-anode distance and the bias voltage. It has the potential to outperform the conventional free-electron or solid-state terahertz devices in terms of portability, tunability, and output power, signifying a promising class of tunable and high-power terahertz source on chip." @default.
- W3120887688 created "2021-01-18" @default.
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- W3120887688 date "2021-01-07" @default.
- W3120887688 modified "2023-10-13" @default.
- W3120887688 title "Terahertz laser diode using field emitter arrays" @default.
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- W3120887688 doi "https://doi.org/10.1103/physrevb.103.035109" @default.
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