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Article Dans Une Revue IEE Proceedings Optoelectronics Année : 2002

Terahertz electromagnetic generation via optical frequency difference

Gaël Mouret
Robin Bocquet
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Résumé

Electromagnetic generation between 0.1 and 3 terahertz has been demonstrated using ultrafast photodetectors loaded by broadband antennas and pumped by 0.8 µm stable lasers. Ultrashort response times have been achieved by means of low-temperature-grown (LTG) GaAs in a deep submicron interdigited technology. The 3 dB cutoff frequency is around 650 GHz with an expected output power of the order of a few tenths of a microwatt in the lower part of the spectrum, depending on the thermal post-processing conditions. Possible improvements via long wavelength laser pumping and a Fabry–Pérot cavity-like approach are discussed on the basis of a vertical device scheme.
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Dates et versions

hal-02347937 , version 1 (05-11-2019)

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Emilien Peytavit, Gaël Mouret, Jean-Francois Lampin, S. Arscott, Pascal Masselin, et al.. Terahertz electromagnetic generation via optical frequency difference. IEE Proceedings Optoelectronics, 2002, 149 (3), pp.82-87. ⟨10.1049/ip-opt:20020321⟩. ⟨hal-02347937⟩
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