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...

Confocal Fluorescence Microscopy

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

Imaging Biological Samples with Optical Microscopy

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

You might also read

Related Articles

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

Sort by

Same author

O-arm navigation-guided uni-portal non-coaxial spinal endoscopic surgery for the precise treatment of far-out syndrome-a case report and literature review.

Frontiers in surgery·2026

Same author

CDK9 degrader induces BRCAness and sensitizes castration-resistant prostate cancer to PARP inhibitor.

Theranostics·2026

Same author

Bound states in the continuum in plasmonic structures.

Reports on progress in physics. Physical Society (Great Britain)·2026

Same author

Varifocal Alvarez metalens array for adaptive light-field imaging.

Nature communications·2026

Same author

Analysis on the formation mechanism of porous microstructure on aluminum grooves by ultrasonic cavitation treatment.

Ultrasonics sonochemistry·2026

Same author

The NAC Transcription Factor SlNAP2 Enhances Tomato Resistance to Ralstonia solanacearum.

Physiologia plantarum·2026

Same journal

Targeted Delivery of Indole-3-Pyruvic Acid Suppresses Macrophage Ferroptosis to Enhance CD8<sup>+</sup> T Cell-Mediated Immunotherapy Response in Bladder Cancer.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Pathological Copper Overload Reprograms SOD1 Activation via COMMD1 to Promote Senescence and Fibrosis.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Bending-Resistant Intimate 3D Graphene-Metal Heterojunctions for Highly Sensitive and Robust Flexible Sensors.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

A Pathology-Instructed Theranostic Platform with Mechanoadaptive and ROS-Powered Nanobreathing Functions for Precision Myocardial Repair.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Targeting p21-High Senescent Kupffer Cells Nanotherapeutically Potentiates Antitumor Immunity in Advanced Hepatocellular Carcinoma with Portal Vein Tumor Thrombus.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

A Ceramic Network for Hybrid Solid Electrolyte Lithium Metal Batteries.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jan 17, 2026

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

Varifocal Meta-Lens for Multifunctional Focusing and Imaging.

Rong Lin¹, Jin Yao¹, Chen Chen^1,2

¹Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)

|September 22, 2025

Summary

This summary is machine-generated.

This study presents a polarization-independent varifocal meta-lens that switches between non-diffracting autofocusing and standard focusing beams. This compact optical system offers tunable beam control for advanced imaging applications.

Keywords:

multifunctional non‐diffractive tunable varifocal meta‐lens

More Related Videos

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Published on: October 28, 2018

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Related Experiment Videos

Last Updated: Jan 17, 2026

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures

Published on: December 1, 2023

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Conducting Multiple Imaging Modes with One Fluorescence Microscope

Published on: October 28, 2018

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Area of Science:

Optics and Photonics
Metamaterials
Optical Engineering

Background:

Achieving multifunctionality and tunability in compact optical systems is challenging.
Conventional optics are bulky, and tunable metasurfaces have limited operational modes.

Purpose of the Study:

To present a polarization-independent varifocal meta-lens enabling mode switching.
To demonstrate continuous focal length modulation via a Moiré-based tuning mechanism.

Main Methods:

Utilized two cascaded metasurfaces with a superimposed phase profile.
Implemented a Moiré-based tuning mechanism for in-plane rotation.
Analyzed mode transition via dual interpretation in real and spatial frequency domains.

Main Results:

Achieved mode switching between abrupt autofocusing (AAF) and diffraction-limited focusing beams.
Demonstrated focal length tuning ranges of 10.3 mm (AAF) and 29.3 mm (standard focusing).
Enabled relative zoom magnification from 1× to 1.95× in standard focusing mode.

Conclusions:

The proposed varifocal meta-lens offers a compact and tunable solution for beam control.
This platform is suitable for adaptive imaging and optical microscopy.
The device integrates multifunctionality and tunability for advanced optical systems.