| dc.contributor.author | Ren, Y. | |
| dc.contributor.author | Hayton, D. J. | |
| dc.contributor.author | Hovenier, J. N. | |
| dc.contributor.author | Cui, M. | |
| dc.contributor.author | Gao, J. R. | |
| dc.contributor.author | Klapwijk, T. M. | |
| dc.contributor.author | Shi, S. C. | |
| dc.contributor.author | Kao, Tsung-Yu | |
| dc.contributor.author | Hu, Q. | |
| dc.contributor.author | Reno, J. L. | |
| dc.date.accessioned | 2014-05-02T18:28:05Z | |
| dc.date.available | 2014-05-02T18:28:05Z | |
| dc.date.issued | 2012-09 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/86384 | |
| dc.description.abstract | We report a new experiment on a high-resolution heterodyne spectrometer using a 3.5 THz quantum cascade laser (QCL) as local oscillator (LO) and a superconducting hot electron bolometer (HEB) as mixer by stabilizing both frequency and amplitude of the QCL. The frequency locking of the QCL is demonstrated by using a methanol molecular absorption line, a proportional-integral-derivative (PID) controller, and a direct power detector. We show that the LO locked linewidth can be as narrow as 35 KHz. The LO power to the HEB is also stabilized by means of swing-arm actuator placed in the beam path in combination of a second PID controller.© (2012) SPIE. | en_US |
| dc.language.iso | en_US | |
| dc.publisher | SPIE | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1117/12.925651 | 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 | SPIE | en_US |
| dc.title | Stabilized HEB-QCL heterodyne spectrometer at super-terahertz | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Ren, Y., D. J. Hayton, J. N. Hovenier, M. Cui, J. R. Gao, T. M. Klapwijk, S. C. Shi, T.-Y. Kao, Q. Hu, and J. L. Reno. “Stabilized HEB-QCL Heterodyne Spectrometer at Super-Terahertz.” Edited by Wayne S. Holland. Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI (September 24, 2012). (Proc. SPIE 8452). | 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.relation.journal | Proceedings of SPIE--the International Society for Optical Engineering | en_US |
| dc.eprint.version | Final published version | en_US |
| dc.type.uri | http://purl.org/eprint/type/ConferencePaper | en_US |
| eprint.status | http://purl.org/eprint/status/NonPeerReviewed | en_US |
| dspace.orderedauthors | Ren, Y.; Hayton, D. J.; Hovenier, J. N.; Cui, M.; Gao, J. R.; Klapwijk, T. M.; Shi, S. C.; Kao, T.-Y.; Hu, Q.; Reno, J. L. | en_US |
| mit.license | PUBLISHER_POLICY | en_US |
| mit.metadata.status | Complete | |
