Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/43298
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Applied Physics | - |
dc.creator | Liang, G | - |
dc.creator | Hu, X | - |
dc.creator | Yu, X | - |
dc.creator | Shen, Y | - |
dc.creator | Li, LH | - |
dc.creator | Davies, AG | - |
dc.creator | Linfield, EH | - |
dc.creator | Liang, HK | - |
dc.creator | Zhang, Y | - |
dc.creator | Yu, SF | - |
dc.creator | Wang, QJ | - |
dc.date.accessioned | 2016-06-07T06:15:46Z | - |
dc.date.available | 2016-06-07T06:15:46Z | - |
dc.identifier.issn | 2330-4022 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/43298 | - |
dc.language.iso | en | en_US |
dc.publisher | American Chemical Society | en_US |
dc.rights | © 2015 American Chemical Society. This is an open access article published under a Creative Commons Attribution 4.0 (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. | en_US |
dc.rights | The following publication Liang, G., Hu, X., Yu, X., Shen, Y., Li, L. H., Davies, A. G., ... & Wang, Q. J. (2015). Integrated terahertz graphene modulator with 100% modulation depth. ACS photonics, 2(11), 1559-1566 is available at https://doi.org/10.1021/acsphotonics.5b00317 | en_US |
dc.subject | 100 percent modulation depth | en_US |
dc.subject | Graphene | en_US |
dc.subject | Integrated photonics | en_US |
dc.subject | Quantum cascade laser | en_US |
dc.subject | Terahertz modulator | en_US |
dc.title | Integrated terahertz graphene modulator with 100% modulation depth | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 1559 | en_US |
dc.identifier.epage | 1566 | en_US |
dc.identifier.volume | 2 | en_US |
dc.identifier.issue | 11 | en_US |
dc.identifier.doi | 10.1021/acsphotonics.5b00317 | en_US |
dcterms.abstract | Terahertz (THz) frequency technology has many potential applications in nondestructive imaging, spectroscopic sensing, and high-bit-rate free-space communications, with an optical modulator being a key component. However, it has proved challenging to achieve high-speed modulation with a high modulation depth across a broad bandwidth of THz frequencies. Here, we demonstrate that a monolithically integrated graphene modulator can efficiently modulate the light intensity of the THz radiation from a THz quantum cascade laser with a 100% modulation depth for certain region of the pumping current, as a result of the strongly enhanced interaction between the laser field and the graphene enabled by this integration scheme. Moreover, the small area of the resulting device in comparison to existing THz modulators enables a faster modulation speed, greater than 100 MHz, which can be further improved through optimized designs of the laser cavity and modulator architectures. Furthermore, as the graphene absorption spectrum is broadband in nature, our integration scheme can be readily scaled to other wavelength regions, such as the mid-infrared, and applied to a broad range of other optoelectronic devices. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | ACS photonics, 2015, v. 2, no. 11, p. 1559-1566 | - |
dcterms.isPartOf | ACS photonics | - |
dcterms.issued | 2015 | - |
dc.identifier.scopus | 2-s2.0-84947741421 | - |
dc.description.validate | 201902_a bcma | en_US |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Liang_Integrated_terahertz_graphene.pdf | 4.26 MB | Adobe PDF | View/Open |
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