TIGHT FOCUSING PROPERTIES OF PHASE MODULATED AZIMUTHALLY POLARIZED DOUGHNUT GAUSSIAN VORTEX BEAM BY HIGH NA PARABOLIC MIRROR

dc.contributor.author	Umamageswari N
dc.contributor.author	Lavanya M
dc.contributor.author	Udhayakumar M
dc.contributor.author	Rajesh K B
dc.contributor.author	Zaroszewicz Z
dc.date.accessioned	2020-09-28T11:09:08Z
dc.date.available	2020-09-28T11:09:08Z
dc.date.issued	2019-08-10
dc.description.abstract	The intensity distribution in the focal region of a high NA parabolic mirror for the incident azimuthally polarized doughnut Gaussian vortex beam (DGVB) transmitted through a multi belt complex phase filter (MBCF) is studied using vector diffraction theory. By properly designing the phase of the incident beam using MBCF and by tuning the beam parameters of a DGVB, it is possible to switch the focal spot with sub wavelength dimension and long focal depth in to multiple focal spots suitable for particle acceleration, atom optical experiments, and near-field scanning optical microscopy	en_US
dc.identifier.issn	2214-7853
dc.identifier.uri	https://www.sciencedirect.com/science/article/pii/S2214785319323478
dc.identifier.uri	https://dspace.psgrkcw.com/handle/123456789/1825
dc.language.iso	en	en_US
dc.publisher	Materials Today Proceedings, Elsevier	en_US
dc.subject	Azimuthally polarized	en_US
dc.subject	Doughnut Gaussian vortex beam	en_US
dc.subject	Vector diffraction theory	en_US
dc.subject	Multi belt complex phase filter	en_US
dc.subject	High NA parabolic mirror	en_US
dc.title	TIGHT FOCUSING PROPERTIES OF PHASE MODULATED AZIMUTHALLY POLARIZED DOUGHNUT GAUSSIAN VORTEX BEAM BY HIGH NA PARABOLIC MIRROR	en_US
dc.type	Article	en_US

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