| dc.contributor.author | Hu, Qing | |
| dc.contributor.author | Reno, John L. | |
| dc.contributor.author | Chan, Chun Wang Ivan | |
| dc.date.accessioned | 2014-05-22T18:09:19Z | |
| dc.date.available | 2014-05-22T18:09:19Z | |
| dc.date.issued | 2013-10 | |
| dc.date.submitted | 2013-07 | |
| dc.identifier.issn | 00036951 | |
| dc.identifier.issn | 1077-3118 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/87103 | |
| dc.description.abstract | A terahertz quantum cascade laser is presented in which selectively placed pure AlAs barriers are used to reduce parasitic leakage currents to the conduction band continuum. The design is demonstrated to have improved temperature performance over a regrowth of the current T [subscript max] ∼ 200 K record holder (181 K vs. 175 K). Strangely, it fails to lase below ∼70 K, which we attribute to negative differential resistance (NDR) prior to threshold. A subsequent design using only AlAs barriers failed to lase, the reason for which we posit to be either early NDR or excessive interface roughness scattering. | en_US |
| dc.description.sponsorship | National Science Foundation (U.S.) | en_US |
| dc.description.sponsorship | United States. National Aeronautics and Space Administration | en_US |
| dc.language.iso | en_US | |
| dc.publisher | American Institute of Physics (AIP) | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1063/1.4824878 | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.source | MIT web domain | en_US |
| dc.title | Tall-barrier terahertz quantum cascade lasers | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Chan, Chun Wang I., Qing Hu, and John L. Reno. “Tall-Barrier Terahertz Quantum Cascade Lasers.” Appl. Phys. Lett. 103, no. 15 (2013): 151117. © 2013 AIP Publishing LLC | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
| dc.contributor.mitauthor | Chan, Chun Wang Ivan | en_US |
| dc.contributor.mitauthor | Hu, Qing | en_US |
| dc.relation.journal | Applied Physics Letters | en_US |
| dc.eprint.version | Final published version | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dspace.orderedauthors | Chan, Chun Wang I.; Hu, Qing; Reno, John L. | en_US |
| dc.identifier.orcid | https://orcid.org/0000-0003-1982-4053 | |
| mit.license | PUBLISHER_POLICY | en_US |
| mit.metadata.status | Complete | |
