Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Focusing of Light in the Eye

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...

You might also read

Related Articles

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

Sort by

Same author

Multimodal diagnostic network integrating infrared and mass spectra for lung cancer.

Biomedical optics express·2026

Same author

Unsupervised and supervised methodologies for identification of sample pixels in Fourier transform infrared microspectroscopic images.

Analytical methods : advancing methods and applications·2026

Same author

Label-free diagnosis of lung cancer by Fourier transform infrared microspectroscopy coupled with domain adversarial learning.

The Analyst·2025

Same author

GLASSR-Net: Glass Substrate Spectral Restoration Neural Network for Fourier Transform Infrared Microspectroscopy in the Fingerprint Region.

Analytical chemistry·2025

Same author

End-to-end design of metasurface-based complex-amplitude holograms by physics-driven deep neural networks.

Nanophotonics (Berlin, Germany)·2024

Same author

Environment and reproductive health in China: challenges and opportunities.

Environmental health perspectives·2012

Search research articles

Related Experiment Video

Updated: Jul 1, 2025

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Published on: August 16, 2012

A Multi-foci Sparse-Aperture Metalens.

Borui Xu¹, Wei Wei¹, Ping Tang¹

¹Center for Biophotonics, Institute of Medical Robotics, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)

|March 14, 2024

Summary

This summary is machine-generated.

This study presents a novel multi-foci metalens that overcomes the imaging quality limitations of previous designs. This compact, polarization-independent metalens achieves high-quality imaging at multiple focal points for advanced optical applications.

Keywords:

multi‐foci metalenses optical sparse aperture polarization‐independent metalenses two‐photon polymerization

More Related Videos

Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging

Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging

Published on: September 8, 2017

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Related Experiment Videos

Last Updated: Jul 1, 2025

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Published on: August 16, 2012

Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging

Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging

Published on: September 8, 2017

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Area of Science:

Optics and Photonics
Materials Science

Background:

Conventional multi-foci lenses are bulky, limiting applications in optical communications, virtual reality, and microscopy.
Metasurfaces offer compact multi-foci functionality but often compromise imaging quality at each focal point.

Purpose of the Study:

To develop a polarization-independent, all-dielectric multi-foci metalens with high imaging performance at each focal point.
To address the trade-off between multi-foci capability and imaging quality in metalens design.

Main Methods:

Spatially integrating single-foci optical sparse-aperture sub-metalenses.
Fabricating the metalens using square-nanohole units via two-photon polymerization.
Demonstrating focusing and imaging capabilities with unpolarized light.

Main Results:

The proposed metalens successfully generates multiple focal points.
It maintains imaging capability comparable to single-foci metalenses at each focal point.
The design is polarization-independent and all-dielectric.

Conclusions:

A novel route for designing high-performance multi-foci metalenses is established.
This work offers a potential solution to the challenge of achieving high-quality imaging across multiple foci.
The developed metalens technology could advance optical communications, VR displays, and microscopy.