Terahertz signal generation in 1-D photonic crystals
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Guanajuato
2004
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| _version_ | 1876432481934114816 |
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| author | M. Torres- |
| author_facet | M. Torres- |
| contents | Terahertz signal generation in 1-D photonic crystals M. Torres- J. W. Haus L. A. Aguilera Cortés R. Guzmán- R. Castro- A. Andrade J. González- J. Estudillo- O. Ibarra- Angel González Mónica Trejo R. Rojas-Laguna E. Alvarado Méndez Multidisciplinarias (Ciencias Sociales) Sources Terahertz Photonic Crystals Theoretical and numerical results arepresented to assure that a tunable,narrow-band, coherent THzradiation source can be based onparametric down-conversion in aphotonic crystal. Our proposal isbased on down-conversion mixingand a local-field enhancementmechanism that is available bytuning each of the two driving laserfields either to band-edge or to adefect mode in the band gap. Thefrequency of the down-convertedsignal can be tuned by intersectingtwo non co-linear laser sources. Thepolarizations are degenerate at normalincidence and have sub-THzdown-conversion maximum. For aspecific sample geometry we showthat by changing the angle ofincidence of one tunable laser to 30degrees the THz frequency is about11.5 THz for p-polarization and 3.5THz for s-polarization, since theangle-dependent transmissionspectrum is different for p- and spolarizations.The peak conversionefficiency for both polarizations isenhanced by over two orders ofmagnitude. Finally we also introducesome preliminary experimentalresults which agree with thenumerical results we present here. 2004 artículo científico 0188-6266 https://www.redalyc.org/articulo.oa?id=41614305 en http://www.redalyc.org/revista.oa?id=416 Acta Universitaria application/pdf Universidad de Guanajuato Acta Universitaria (México) Num.3 Vol.14 |
| format | Artículo científico |
| id | redalyc_41614305 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Universidad de Guanajuato |
| spellingShingle | Terahertz signal generation in 1-D photonic crystals M. Torres- Multidisciplinarias (Ciencias Sociales) Sources Terahertz Photonic Crystals Terahertz signal generation in 1-D photonic crystals M. Torres- J. W. Haus L. A. Aguilera Cortés R. Guzmán- R. Castro- A. Andrade J. González- J. Estudillo- O. Ibarra- Angel González Mónica Trejo R. Rojas-Laguna E. Alvarado Méndez Multidisciplinarias (Ciencias Sociales) Sources Terahertz Photonic Crystals Theoretical and numerical results arepresented to assure that a tunable,narrow-band, coherent THzradiation source can be based onparametric down-conversion in aphotonic crystal. Our proposal isbased on down-conversion mixingand a local-field enhancementmechanism that is available bytuning each of the two driving laserfields either to band-edge or to adefect mode in the band gap. Thefrequency of the down-convertedsignal can be tuned by intersectingtwo non co-linear laser sources. Thepolarizations are degenerate at normalincidence and have sub-THzdown-conversion maximum. For aspecific sample geometry we showthat by changing the angle ofincidence of one tunable laser to 30degrees the THz frequency is about11.5 THz for p-polarization and 3.5THz for s-polarization, since theangle-dependent transmissionspectrum is different for p- and spolarizations.The peak conversionefficiency for both polarizations isenhanced by over two orders ofmagnitude. Finally we also introducesome preliminary experimentalresults which agree with thenumerical results we present here. 2004 artículo científico 0188-6266 https://www.redalyc.org/articulo.oa?id=41614305 en http://www.redalyc.org/revista.oa?id=416 Acta Universitaria application/pdf Universidad de Guanajuato Acta Universitaria (México) Num.3 Vol.14 |
| title | Terahertz signal generation in 1-D photonic crystals |
| topic | Multidisciplinarias (Ciencias Sociales) Sources Terahertz Photonic Crystals |
| url | https://www.redalyc.org/articulo.oa?id=41614305 |