Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

11.3K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
11.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Editorial: Special Issue "Liquid Crystals II".

Molecules (Basel, Switzerland)·2025
Same author

Applications of Natural Polymers in the Grapevine Industry: Plant Protection and Value-Added Utilization of Waste.

Polymers·2025
Same author

Advancements in Stone Object Restoration Using Polymer-Inorganic Phosphate Composites for Cultural Heritage Preservation.

Polymers·2024
Same author

Mixing Rules for Left-Handed Disordered Metamaterials: Effective-Medium and Dispersion Properties.

Nanomaterials (Basel, Switzerland)·2024
Same author

Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices.

Materials (Basel, Switzerland)·2023
Same author

Columnar Liquid Crystals of Copper(I) Complexes with Ionic Conductivity and Solid State Emission.

Molecules (Basel, Switzerland)·2023

Related Experiment Video

Updated: Nov 7, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.4K

Bifunctional Metamaterials Using Spatial Phase Gradient Architectures: Generalized Reflection and Refraction

Octavian Danila1, Doina Manaila-Maximean1

  • 1Physics Department, 'Politehnica' University of Bucharest, 060042 Bucharest, Romania.

Materials (Basel, Switzerland)
|April 30, 2021
PubMed
Summary

Metasurface structures enable normal-incidence transmission at non-normal angles by controlling phase distributions. This breakthrough offers tunable bifunctional optical properties for advanced applications.

Keywords:
generalized reflectiongeneralized refractionmetasurfacesoptical field guidingpolarization controlspatial phase gradient

More Related Videos

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.6K
Fabricating Metamaterials Using the Fiber Drawing Method
11:57

Fabricating Metamaterials Using the Fiber Drawing Method

Published on: October 18, 2012

14.0K

Related Experiment Videos

Last Updated: Nov 7, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.4K
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.6K
Fabricating Metamaterials Using the Fiber Drawing Method
11:57

Fabricating Metamaterials Using the Fiber Drawing Method

Published on: October 18, 2012

14.0K

Area of Science:

  • Optics and Photonics
  • Metamaterials Science

Background:

  • Generalized laws of reflection and refraction govern light-matter interactions at interfaces.
  • Metasurfaces offer unprecedented control over light propagation, enabling exotic optical phenomena.
  • Previous studies on generalized refraction have not fully explored normal-incidence conditions with positive phase distributions.

Purpose of the Study:

  • To demonstrate normal-incidence transmission using metasurfaces with positive spatial phase distributions.
  • To investigate the tunability of normal-incidence conditions via phase gradient manipulation.
  • To explore the bifunctional optical behavior of metasurfaces near normal incidence.

Main Methods:

  • Design and fabrication of thin metasurface structures with tailored positive spatial phase distributions.
  • Theoretical analysis of generalized reflection and refraction principles applied to metasurfaces.
  • Experimental characterization of transmission properties at various incidence angles.

Main Results:

  • Achieved normal-incidence transmission at non-normal incidence angles through engineered metasurfaces.
  • Demonstrated angle-tunability of normal-incidence conditions by adjusting phase distribution gradients.
  • Observed bifunctional (divergent or convergent) behavior of metasurfaces around normal incidence.

Conclusions:

  • Metasurfaces with positive phase distributions can achieve normal-incidence transmission, expanding optical control capabilities.
  • The tunable and bifunctional nature of these metasurfaces is crucial for advanced optical devices.
  • Potential applications include integrated optics, wave front sensing, and polarization manipulation.