Zobrazeno 1 - 10
of 33
pro vyhledávání: '"C. Mariyal"'
Publikováno v:
The Scientific World Journal, Vol 2014 (2014)
Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to
Externí odkaz:
https://doaj.org/article/e46c1440933a431bbd9c5bc5ca10897a
Publikováno v:
International Journal of Circuits, Systems and Signal Processing. 17:39-43
Orthogonal Frequency Division Multiplexing (OFDM) is employed in the current 4G cellular technologies. Because of its resistance to multipath propagation channels, OFDM is a popular multicarrier modulation technique. Although OFDM is one of the effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e6ed44fe042870ad1af68119ab97cac
https://doi.org/10.46300/9106.2023.17.4
https://doi.org/10.46300/9106.2023.17.4
Publikováno v:
Optik. 126:1691-1694
In this article, based on vector diffraction theory the focusing properties of double ring shaped higher order Laguerre–Gauss beam with radial varying polarization are investigated numerically. The numerical simulations show that the evolution of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b98be551eda6e6fcb4d961e0e9756fec
https://doi.org/10.1016/j.ijleo.2015.05.001
https://doi.org/10.1016/j.ijleo.2015.05.001
Effect of annular obstruction on tight focusing of partially coherent radially polarized Vortex beam
Publikováno v:
Optik. 125:2934-2937
Based on vectorial Debye theory, the effect of annular apodization of tightly focused partially coherent radially polarized vortex beams in the focal field of high NA lens is studied. The intensity distribution in the focal region is illustrated by n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e98bd6184e58d633e1a3af9a6aa42d99
https://doi.org/10.1016/j.ijleo.2013.12.080
https://doi.org/10.1016/j.ijleo.2013.12.080
Publikováno v:
Optik. 125:1113-1116
In recent years the partially coherent beams have attracted very much due to novel properties and its applications. In this paper the tight focusing properties of radially polarized partially coherent dark hollow beam (DHB) through a high numerical a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a7160d22073f065394c535142fb2630
https://doi.org/10.1016/j.ijleo.2013.07.165
https://doi.org/10.1016/j.ijleo.2013.07.165
Publikováno v:
Optik. 124:5099-5102
Based on vector diffraction theory, the intensity distributions of azimuthally polarized double-ring-shaped higher order beams near the focus are calculated numerically. It is shown that a subwavelength focal hole with a quite long depth of focus, mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50bfe26514bc08294369f06a84f97562
https://doi.org/10.1016/j.ijleo.2013.03.139
https://doi.org/10.1016/j.ijleo.2013.03.139
Publikováno v:
Optik. 124:4956-4959
Tight focusing of radially polarized partially coherent vortex beam over a high numerical aperture lens axicon system is introduced and its propagation properties are studied based on vectorial Debye theory. The effect of propagation parameters on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f520aab8daf65d1b468033b83fb5d54d
https://doi.org/10.1016/j.ijleo.2013.03.043
https://doi.org/10.1016/j.ijleo.2013.03.043
Publikováno v:
Optik. 124:1632-1636
A method is presented for generation of cylindrical vector beam and also to obtain the polarization effect on focal depth in high numerical apertures (NA) lens axicon optical systems. The generalized cylindrical vector beam is just a linear combinati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7a32efcd7366511a08e842ccf883166
https://doi.org/10.1016/j.ijleo.2012.05.049
https://doi.org/10.1016/j.ijleo.2012.05.049
Publikováno v:
Optik. 125:6599-6601
Based on vectorial diffraction theory, the effect of annular apodization on tightly focused azimuthally polarized Bessel-modulated Gaussian beam (QBG) are investigated theoretically. The numerical results show that the intensity distribution in focal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b11d01bdc6ad264c1755ad7b58c936a
https://doi.org/10.1016/j.ijleo.2014.07.081
https://doi.org/10.1016/j.ijleo.2014.07.081
Publikováno v:
Optik. 125:4652-4654
Focusing properties of the azimuthally polarized axisymmetric Bessel-modulated Gaussian beam with Quadratic Bessel Gaussian (QBG beam) and annular aperture are investigated theoretically by vector diffraction theory. Simulation results show that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff20f8b2cbffa44de4242950de8382a8
https://doi.org/10.1016/j.ijleo.2014.05.028
https://doi.org/10.1016/j.ijleo.2014.05.028