About the approximation of a field of an extended source by a sphere wave in the far illumination region
On the base of a coherent emitting straight segment, the problem of approximate description of the field of an extended source in the far illumination region is considered. It is shown that in regions close to the directions of intensity maximums the source field can be approximated by mean of spher...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Results in Optics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266695012400049X |
| _version_ | 1827572209420337152 |
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| author | A.Zh. Khachatrian |
| author_facet | A.Zh. Khachatrian |
| author_sort | A.Zh. Khachatrian |
| collection | DOAJ |
| description | On the base of a coherent emitting straight segment, the problem of approximate description of the field of an extended source in the far illumination region is considered. It is shown that in regions close to the directions of intensity maximums the source field can be approximated by mean of sphere waves. The sphericity condition in corresponding region is found. The problem of approximation of an extended source field by means of a plane wave is also discusses. As a result of a next approximation of a spherical wave, the condition for the approximation of a field of extended source by means of a plane wave was found. |
| first_indexed | 2024-04-24T11:19:54Z |
| format | Article |
| id | doaj.art-110fd9d35d914af9b737991206459323 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-04-24T11:19:54Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-110fd9d35d914af9b7379912064593232024-04-11T04:42:07ZengElsevierResults in Optics2666-95012024-05-0115100652About the approximation of a field of an extended source by a sphere wave in the far illumination regionA.Zh. Khachatrian0National Polytechnic University of Armenia, Teryan 105, Yerevan, ArmeniaOn the base of a coherent emitting straight segment, the problem of approximate description of the field of an extended source in the far illumination region is considered. It is shown that in regions close to the directions of intensity maximums the source field can be approximated by mean of sphere waves. The sphericity condition in corresponding region is found. The problem of approximation of an extended source field by means of a plane wave is also discusses. As a result of a next approximation of a spherical wave, the condition for the approximation of a field of extended source by means of a plane wave was found.http://www.sciencedirect.com/science/article/pii/S266695012400049XExtended sourceSphere and plane wave approximations |
| spellingShingle | A.Zh. Khachatrian About the approximation of a field of an extended source by a sphere wave in the far illumination region Results in Optics Extended source Sphere and plane wave approximations |
| title | About the approximation of a field of an extended source by a sphere wave in the far illumination region |
| title_full | About the approximation of a field of an extended source by a sphere wave in the far illumination region |
| title_fullStr | About the approximation of a field of an extended source by a sphere wave in the far illumination region |
| title_full_unstemmed | About the approximation of a field of an extended source by a sphere wave in the far illumination region |
| title_short | About the approximation of a field of an extended source by a sphere wave in the far illumination region |
| title_sort | about the approximation of a field of an extended source by a sphere wave in the far illumination region |
| topic | Extended source Sphere and plane wave approximations |
| url | http://www.sciencedirect.com/science/article/pii/S266695012400049X |
| work_keys_str_mv | AT azhkhachatrian abouttheapproximationofafieldofanextendedsourcebyaspherewaveinthefarilluminationregion |