| dc.contributor.author | Kao, Tsung-Yu | |
| dc.contributor.author | Hu, Qing | |
| dc.contributor.author | Reno, John L. | |
| dc.date.accessioned | 2014-05-02T16:49:51Z | |
| dc.date.available | 2014-05-02T16:49:51Z | |
| dc.date.issued | 2012-05 | |
| dc.date.submitted | 2012-03 | |
| dc.identifier.issn | 0146-9592 | |
| dc.identifier.issn | 1539-4794 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/86373 | |
| dc.description.abstract | We report a novel laser cavity design in third-order distributed feedback (DFB) terahertz quantum-cascade lasers based on a perfectly phase-matching technique. This approach substantially increases the usable length of the third-order DFB laser and leads to narrow beam patterns. Single frequency emissions from 151 apertures (5.6 mm long device) are coherently added up to form a narrow beam with (FWHM ≈ 6 × 11°) divergence. A similar device with 40 apertures shows more than 5 mW of optical power with slope efficiency ~ 140 mW/A at 10 K pulsed operation. | en_US |
| dc.description.sponsorship | United States. National Aeronautics and Space Administration | en_US |
| dc.description.sponsorship | National Science Foundation (U.S.) | en_US |
| dc.language.iso | en_US | |
| dc.publisher | Optical Society of America | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1364/OL.37.002070 | 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 | Perfectly phase-matched third-order distributed feedback terahertz quantum-cascade lasers | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Kao, Tsung-Yu, Qing Hu, and John L. Reno. “Perfectly Phase-Matched Third-Order Distributed Feedback Terahertz Quantum-Cascade Lasers.” Optics Letters 37, no. 11 (June 1, 2012): 2070. © 2012 Optical Society of America | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Research Laboratory of Electronics | en_US |
| dc.contributor.mitauthor | Kao, Tsung-Yu | en_US |
| dc.contributor.mitauthor | Hu, Qing | en_US |
| dc.relation.journal | Optics 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 | Kao, Tsung-Yu; 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 | |
