| dc.contributor.advisor | Qing Hu. | en_US |
| dc.contributor.author | Huang, Shengxi, Ph. D. Massachusetts Institute of Technology | en_US |
| dc.contributor.other | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. | en_US |
| dc.date.accessioned | 2013-11-18T19:18:22Z | |
| dc.date.available | 2013-11-18T19:18:22Z | |
| dc.date.copyright | 2013 | en_US |
| dc.date.issued | 2013 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1721.1/82399 | |
| dc.description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013. | en_US |
| dc.description | Cataloged from PDF version of thesis. | en_US |
| dc.description | Includes bibliographical references (p. 139-144). | en_US |
| dc.description.abstract | Terahertz (THz) photodetectors are important in the fully exploration and development of electromagnetic spectrum. However, a fast and sensitive THz photodetector ready for array integration is not available. A THz Quantum-well Photodetector (QWP) has the properties of being fast, sensitive, low-noise, and narrow-band. It is promising for large-array integration for THz imaging. In addition, a THz QWP-LED (Light-Emitting Diode) can upconvert the THz to NIR radiation and useful for THz imaging in Focal-Plane Array (FPA). In this thesis project, the theory of the intersubband transition and carrier transport in a THz QWP is studied. The designe, fabrication, measurement-system buildup, and characterization are performed. In addition, the design and fabrication process of THz QWP-LED are also carried out. Such devices have potential applications in many fields such as biology, medication and security. | en_US |
| dc.description.statementofresponsibility | by Shengxi Huang. | en_US |
| dc.format.extent | 144 p. | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Massachusetts Institute of Technology | en_US |
| dc.rights | M.I.T. theses are protected by
copyright. They may be viewed from this source for any purpose, but
reproduction or distribution in any format is prohibited without written
permission. See provided URL for inquiries about permission. | en_US |
| dc.rights.uri | http://dspace.mit.edu/handle/1721.1/7582 | en_US |
| dc.subject | Electrical Engineering and Computer Science. | en_US |
| dc.title | Design, fabrication and characterization of terahertz quantum-well photodetectors | en_US |
| dc.type | Thesis | en_US |
| dc.description.degree | S.M. | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | |
| dc.identifier.oclc | 862110506 | en_US |
