| Автор | Kotlyar, V V |
| Автор | Kovalev, A A |
| Автор | Soifer, V A |
| Дата выпуска | 2011-07-01 |
| dc.description | Using the weak nonparaxial approximation, we derive explicit analytical relationships for three projections of the electric field vector of a hypergeometric (HyG) laser beam. For the HyG beams with topological charge n = 0, 1 we derive explicit formulae for the axial intensity, which suggest that the waist position is related to the parameters of the HyG beam and shifted with respect to the plane z = 0. Such a displacement of the axial intensity peak has been given the name ‘HyG beam lensless focusing’ and formulae for calculating the said shift magnitude (focus distance) are deduced. The propagation of the HyG beam at n = 0 is simulated using the finite-difference time-domain method. The waist shift and the axial intensity magnitudes are shown to agree with those predicted by the approximate relations. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Lensless focusing of hypergeometric laser beams |
| Тип | paper |
| DOI | 10.1088/2040-8978/13/7/075703 |
| Electronic ISSN | 2040-8986 |
| Print ISSN | 2040-8978 |
| Журнал | Journal of Optics |
| Том | 13 |
| Первая страница | 75703 |
| Последняя страница | 75708 |
| Аффилиация | Kotlyar, V V; Laser Measurements Laboratory, Image Processing Systems Institute of the Russian Academy of Sciences, 151 Molodogvardejskaya Street, Samara 443001, Russia |
| Аффилиация | Kovalev, A A; Laser Measurements Laboratory, Image Processing Systems Institute of the Russian Academy of Sciences, 151 Molodogvardejskaya Street, Samara 443001, Russia |
| Аффилиация | Soifer, V A; Technical Cybernetics Sub-department, S P Korolyov Samara State Aerospace University, 34 Moskovskoye Shosse, Samara 443086, Russia |
| Выпуск | 7 |
