Efficient terahertz emission from ballistic transport enhanced n-i-p-n-i-p superlattice photomixers
Preu S, Renner F, Malzer S, Döhler G, Wang L, Hanson M, Gossard A, Wilkinson T, Brown ER (2007)
Publication Type: Journal article, Original article
Publication year: 2007
Journal
Original Authors: Preu S., Renner F.H., Malzer S., Dohler G.H., Wang L.J., Hanson M., Gossard A.C., Wilkinson T.L.J., Brown E.R.
Publisher: American Institute of Physics (AIP)
Book Volume: 90
Article Number: 212115
Journal Issue: 21
DOI: 10.1063/1.2743400
Abstract
The authors report on photomixing terahertz sources that overcome the transit time versus RC -time trade-off and allow for independent optimization of both of them, using a n-i-p-n-i-p superlattice. Furthermore, they take advantage of ballistic transport for reduced transit times. Apart from more favorable material parameters, In(Al)GaAs photomixers benefit from the advanced telecommunication laser technology around 1.55 μm as compared to GaAs. In such devices, a terahertz-power output of 1 μW has been achieved at 0.4 THz at a photocurrent of 3.8 mA. A comparison between corresponding GaAs- and InGaAs-based n-i-p-n-i-p photomixers reveals an improvement of performance by at least an order of magnitude for the latter one. © 2007 American Institute of Physics.
Authors with CRIS profile
Sascha Preu
Chair of Applied Physics (LAP)
Stefan Malzer
Institut für Physik der Kondensierten Materie
Involved external institutions
United States (USA) (US)How to cite
APA:
Preu, S., Renner, F., Malzer, S., Döhler, G., Wang, L., Hanson, M.,... Brown, E.R. (2007). Efficient terahertz emission from ballistic transport enhanced n-i-p-n-i-p superlattice photomixers. Applied Physics Letters, 90(21). https://doi.org/10.1063/1.2743400
MLA:
Preu, Sascha, et al. "Efficient terahertz emission from ballistic transport enhanced n-i-p-n-i-p superlattice photomixers." Applied Physics Letters 90.21 (2007).
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