Beam and phase distributions of a terahertz quantum cascade wire laser
We report on both measurements and simulations of the beam profile and wavefront of a single-mode, 3.5 THz quantum cascade wire laser, incorporating a lateral corrugated metal-metal waveguide, 3rd-order distributed feedback grating. The intrinsic wavefront was measured by using a Hartmann wavefront...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Institute of Physics (AIP)
2014
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| Online Access: | http://hdl.handle.net/1721.1/86380 https://orcid.org/0000-0003-1982-4053 |
| _version_ | 1826206600861319168 |
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| author | Cui, M. Hovenier, J. N. Ren, Y. Vercruyssen, N. Gao, J. R. Reno, J. L. Kao, Tsung-Yu Hu, Qing |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Cui, M. Hovenier, J. N. Ren, Y. Vercruyssen, N. Gao, J. R. Reno, J. L. Kao, Tsung-Yu Hu, Qing |
| author_sort | Cui, M. |
| collection | MIT |
| description | We report on both measurements and simulations of the beam profile and wavefront of a single-mode, 3.5 THz quantum cascade wire laser, incorporating a lateral corrugated metal-metal waveguide, 3rd-order distributed feedback grating. The intrinsic wavefront was measured by using a Hartmann wavefront sensor (HWS) without any optical components between the laser and HWS. Both beam profile and wavefront were simulated using an antenna array model, but taking the non-uniform electric field distribution along the waveguide into account. The results show that the non-uniform distribution along the wire laser plays a crucial role in realizing a nearly single-lobed narrow beam. The measured wavefront is spherical and agrees well with the simulation. |
| first_indexed | 2024-09-23T13:35:10Z |
| format | Article |
| id | mit-1721.1/86380 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:35:10Z |
| publishDate | 2014 |
| publisher | American Institute of Physics (AIP) |
| record_format | dspace |
| spelling | mit-1721.1/863802022-10-01T15:51:34Z Beam and phase distributions of a terahertz quantum cascade wire laser Cui, M. Hovenier, J. N. Ren, Y. Vercruyssen, N. Gao, J. R. Reno, J. L. Kao, Tsung-Yu Hu, Qing Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Kao, Tsung-Yu Hu, Qing We report on both measurements and simulations of the beam profile and wavefront of a single-mode, 3.5 THz quantum cascade wire laser, incorporating a lateral corrugated metal-metal waveguide, 3rd-order distributed feedback grating. The intrinsic wavefront was measured by using a Hartmann wavefront sensor (HWS) without any optical components between the laser and HWS. Both beam profile and wavefront were simulated using an antenna array model, but taking the non-uniform electric field distribution along the waveguide into account. The results show that the non-uniform distribution along the wire laser plays a crucial role in realizing a nearly single-lobed narrow beam. The measured wavefront is spherical and agrees well with the simulation. United States. National Aeronautics and Space Administration National Science Foundation (U.S.) 2014-05-02T17:33:21Z 2014-05-02T17:33:21Z 2013-03 2013-01 Article http://purl.org/eprint/type/JournalArticle 00036951 1077-3118 http://hdl.handle.net/1721.1/86380 Cui, M., J. N. Hovenier, Y. Ren, N. Vercruyssen, J. R. Gao, T. Y. Kao, Q. Hu, and J. L. Reno. “Beam and Phase Distributions of a Terahertz Quantum Cascade Wire Laser.” Appl. Phys. Lett. 102, no. 11 (2013): 111113. © 2013 American Institute of Physics https://orcid.org/0000-0003-1982-4053 en_US http://dx.doi.org/10.1063/1.4798250 Applied Physics Letters 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. application/pdf American Institute of Physics (AIP) MIT web domain |
| spellingShingle | Cui, M. Hovenier, J. N. Ren, Y. Vercruyssen, N. Gao, J. R. Reno, J. L. Kao, Tsung-Yu Hu, Qing Beam and phase distributions of a terahertz quantum cascade wire laser |
| title | Beam and phase distributions of a terahertz quantum cascade wire laser |
| title_full | Beam and phase distributions of a terahertz quantum cascade wire laser |
| title_fullStr | Beam and phase distributions of a terahertz quantum cascade wire laser |
| title_full_unstemmed | Beam and phase distributions of a terahertz quantum cascade wire laser |
| title_short | Beam and phase distributions of a terahertz quantum cascade wire laser |
| title_sort | beam and phase distributions of a terahertz quantum cascade wire laser |
| url | http://hdl.handle.net/1721.1/86380 https://orcid.org/0000-0003-1982-4053 |
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