Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms
In this paper the effect of photonic band gap on the group velocity of reflected pulse from a dielectric slab doped with two-level or three-level atoms has been investigated. It is assumed that the slab is sandwiched between a uniform medium (like vacuum) and a one-dimensional photonic crystal. It i...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2013-09-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-633&slc_lang=en&sid=1 |
| _version_ | 1818273409234108416 |
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| author | S Roshan Entezar M Nikkhou |
| author_facet | S Roshan Entezar M Nikkhou |
| author_sort | S Roshan Entezar |
| collection | DOAJ |
| description | In this paper the effect of photonic band gap on the group velocity of reflected pulse from a dielectric slab doped with two-level or three-level atoms has been investigated. It is assumed that the slab is sandwiched between a uniform medium (like vacuum) and a one-dimensional photonic crystal. It is shown that the reflected pulse from the slab doped with two-level (three-level) atoms will be superluminal (subluminal) if the carrier frequency of the incident Gaussian pulse is in the photonic band gap. In contrast, for the incident pulse with the carrier frequency at the edge of photonic band gap, the reflected pulse from the slab doped with two-level (three-level) atoms is subluminal (superluminal). |
| first_indexed | 2024-12-12T21:57:30Z |
| format | Article |
| id | doaj.art-97174c1b37fe4269b3af1f14c10476ca |
| institution | Directory Open Access Journal |
| issn | 1682-6957 |
| language | English |
| last_indexed | 2024-12-12T21:57:30Z |
| publishDate | 2013-09-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-97174c1b37fe4269b3af1f14c10476ca2022-12-22T00:10:35ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572013-09-01132191195Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atomsS Roshan EntezarM NikkhouIn this paper the effect of photonic band gap on the group velocity of reflected pulse from a dielectric slab doped with two-level or three-level atoms has been investigated. It is assumed that the slab is sandwiched between a uniform medium (like vacuum) and a one-dimensional photonic crystal. It is shown that the reflected pulse from the slab doped with two-level (three-level) atoms will be superluminal (subluminal) if the carrier frequency of the incident Gaussian pulse is in the photonic band gap. In contrast, for the incident pulse with the carrier frequency at the edge of photonic band gap, the reflected pulse from the slab doped with two-level (three-level) atoms is subluminal (superluminal).http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-633&slc_lang=en&sid=1photonic band gapsubluminalsuperluminalreflected pulse |
| spellingShingle | S Roshan Entezar M Nikkhou Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms Iranian Journal of Physics Research photonic band gap subluminal superluminal reflected pulse |
| title | Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms |
| title_full | Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms |
| title_fullStr | Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms |
| title_full_unstemmed | Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms |
| title_short | Effect of photonic band gap on the propagation of reflected pulse from a slab doped with two-level and three-level atoms |
| title_sort | effect of photonic band gap on the propagation of reflected pulse from a slab doped with two level and three level atoms |
| topic | photonic band gap subluminal superluminal reflected pulse |
| url | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-633&slc_lang=en&sid=1 |
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