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https://doi.org/10.1021/nl504116w
| Title: | On-chip picosecond pulse detection and generation using graphene photoconductive switches | Authors: | Hunter, N Mayorov, A.S Wood, C.D Russell, C Li, L Linfield, E.H Davies, A.G Cunningham, J.E |
Keywords: | Gallium arsenide Graphene Photoconductivity Semiconducting gallium Semiconducting gallium arsenide Semiconductor switches Switches Temperature Terahertz waves GaAs Goubau line Low-temperature grown gallium arsenide (LT-GaAs) On chips Picosecond duration Terahertz frequencies THz detection Transport modeling Photoconductive switches |
Issue Date: | 2015 | Publisher: | American Chemical Society | Citation: | Hunter, N, Mayorov, A.S, Wood, C.D, Russell, C, Li, L, Linfield, E.H, Davies, A.G, Cunningham, J.E (2015). On-chip picosecond pulse detection and generation using graphene photoconductive switches. Nano Letters 15 (3) : 1591-1596. ScholarBank@NUS Repository. https://doi.org/10.1021/nl504116w | Rights: | Attribution 4.0 International | Abstract: | We report on the use of graphene for room temperature on-chip detection and generation of pulsed terahertz (THz) frequency radiation, exploiting the fast carrier dynamics of light-generated hot carriers, and compare our results with conventional low-temperature-grown gallium arsenide (LT-GaAs) photoconductive (PC) switches. Coupling of picosecond-duration pulses from a biased graphene PC switch into Goubau line waveguides is also demonstrated. A Drude transport model based on the transient photoconductance of graphene is used to describe the mechanism for both detection and generation of THz radiation. © 2015 American Chemical Society. | Source Title: | Nano Letters | URI: | https://scholarbank.nus.edu.sg/handle/10635/183886 | ISSN: | 1530-6984 | DOI: | 10.1021/nl504116w | Rights: | Attribution 4.0 International |
| Appears in Collections: | Staff Publications Elements |
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