About: Rotating vortex imaging implemented by a quantized spiral phase modulation

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We demonstrate both theoretically and experimentally that a spiral mask with a finite number of discrete phase levels allows a defocusing induced rotation of the point spread function in the vortex imaging. Two experimental configurations based on a spiral phase modulation of light and a spiral filtering of the spatial spectrum are studied in a unified theoretical treatment. The rotating point spread functions are analyzed in detail for imaging realized by the vortex lens and the 4-f system used in the spiral phase contrast microscopy. The theoretical results are verified by experiments using a spatial light modulator. The method is applicable to a precise focusing and optical imaging allowing depth estimation from diffracted rotation. Apart from implementation simplicity, the main advantages of the method are high energy efficiency, a possibility to operate with either complex amplitude or spatial spectrum of light and variability allowing a simple control of number of lobes of the point spread function. We demonstrate both theoretically and experimentally that a spiral mask with a finite number of discrete phase levels allows a defocusing induced rotation of the point spread function in the vortex imaging. Two experimental configurations based on a spiral phase modulation of light and a spiral filtering of the spatial spectrum are studied in a unified theoretical treatment. The rotating point spread functions are analyzed in detail for imaging realized by the vortex lens and the 4-f system used in the spiral phase contrast microscopy. The theoretical results are verified by experiments using a spatial light modulator. The method is applicable to a precise focusing and optical imaging allowing depth estimation from diffracted rotation. Apart from implementation simplicity, the main advantages of the method are high energy efficiency, a possibility to operate with either complex amplitude or spatial spectrum of light and variability allowing a simple control of number of lobes of the point spread function. (en)
Title	Rotating vortex imaging implemented by a quantized spiral phase modulation Rotating vortex imaging implemented by a quantized spiral phase modulation (en)
skos:prefLabel	Rotating vortex imaging implemented by a quantized spiral phase modulation Rotating vortex imaging implemented by a quantized spiral phase modulation (en)
skos:notation	RIV/61989592:15310/13:33144450!RIV14-TA0-15310___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(TE01020229), S
http://linked.open...iv/cisloPeriodika	5/2013
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Baránek, Michal Bouchal, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	103501
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/13:33144450
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	beams; tracking; generation; manipulation; localization; point-spread function; liquid-crystal devices; phase modulation; optical vortices; Singular optics (en)
http://linked.open.../riv/klicoveSlovo	tracking Singular optics liquid-crystal devices optical vortices phase modulation point-spread function generation localization beams manipulation
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[BDCE96BB620E]
http://linked.open...i/riv/nazevZdroje	Journal of the European Optical Society-Rapid publications (online)
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Center of digital optics
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	8
http://linked.open...iv/tvurceVysledku	Baránek, Michal Bouchal, Zdeněk
http://linked.open...ain/vavai/riv/wos	000315518600001
issn	1990-2573
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.2971/jeos.2013.13017
http://localhost/t...ganizacniJednotka	15310

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