Reflective Spin-Orbit Geometric Phase from Planar Isotropic Interface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU148400" target="_blank" >RIV/00216305:26620/23:PU148400 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/23:73619511

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/lpor.202300018" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/lpor.202300018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/lpor.202300018" target="_blank" >10.1002/lpor.202300018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reflective Spin-Orbit Geometric Phase from Planar Isotropic Interface

Popis výsledku v původním jazyce

Manipulating angular momentum of light relies on the change of geometric phase in anisotropic nanostructures or optical interface phenomena. Spin-orbit interactions demonstrated in normal incidence at a planar isotropic interface are conditioned by Brewster reflection, limited to the light beam with a single radial frequency in the k-space. This study demonstrates a geometric (Pancharatnam-Berry) phase that overcomes Brewster angle limitations providing high variability in the modulation of light reflected from a planar isotropic interface. The examined geometric phase stems from the reflection anisotropy imitating the structural anisotropy of photoaligned liquid crystals and photonic metasurfaces. Using a geometric-phase modulation of tightly focused light reflected from a glass slab, three modes of spin to orbital angular momentum conversion are demonstrated. The discovered reflective spin-orbit interaction allows for design of a double-helix focusing sensor to be used in microscopy imaging for precise depth measurements (accuracy 109 nm and precision 7 nm in the range of 8 & mu;m). Experiments with a focused astigmatic beam prove that a glass plate can perform very complex modulation of the geometric phase using illumination structuring. The results thus provide the foundation for the design of low-cost geometric-phase systems relying on the space-variant reflection anisotropy.

Název v anglickém jazyce

Reflective Spin-Orbit Geometric Phase from Planar Isotropic Interface

Popis výsledku anglicky

Manipulating angular momentum of light relies on the change of geometric phase in anisotropic nanostructures or optical interface phenomena. Spin-orbit interactions demonstrated in normal incidence at a planar isotropic interface are conditioned by Brewster reflection, limited to the light beam with a single radial frequency in the k-space. This study demonstrates a geometric (Pancharatnam-Berry) phase that overcomes Brewster angle limitations providing high variability in the modulation of light reflected from a planar isotropic interface. The examined geometric phase stems from the reflection anisotropy imitating the structural anisotropy of photoaligned liquid crystals and photonic metasurfaces. Using a geometric-phase modulation of tightly focused light reflected from a glass slab, three modes of spin to orbital angular momentum conversion are demonstrated. The discovered reflective spin-orbit interaction allows for design of a double-helix focusing sensor to be used in microscopy imaging for precise depth measurements (accuracy 109 nm and precision 7 nm in the range of 8 & mu;m). Experiments with a focused astigmatic beam prove that a glass plate can perform very complex modulation of the geometric phase using illumination structuring. The results thus provide the foundation for the design of low-cost geometric-phase systems relying on the space-variant reflection anisotropy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA21-01953S" target="_blank" >GA21-01953S: Geometricko-fázové hologramy vytvořené pomocí metapovrchů: kvantifikace optické odezvy a užití pro fázová měření a zobrazení se superrozlišením</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Laser and Photonics Reviews

ISSN

1863-8880

e-ISSN

1863-8899

Svazek periodika

17

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001013446900001

EID výsledku v databázi Scopus

2-s2.0-85162931278