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

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for electronic transitions. As a result...
Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
Infrared (IR) Spectroscopy: Overview01:09

Infrared (IR) Spectroscopy: Overview

When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...
Photoelectric Effect02:26

Photoelectric Effect

When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
Radiation: Applications01:17

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...

You might also read

Related Articles

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

Sort by
Same author

Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis-Hillman Reaction.

ACS omega·2026
Same author

A functionalization-free plasmonic hole-sphere nanogap SERS platform for reliable on-site analysis and oxide-state classification.

Nanoscale·2026
Same author

In vacuum metasurface for optical microtrap array.

Optics express·2025
Same author

Independent Wavefront Multiplexing with Metasurfaces via Non-Injective Transformation.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials.

Nano letters·2025
Same author

Self-assembly of isolated plasmonic dimers with sub-5 nm gaps on a metallic mirror.

Nanoscale horizons·2024
Same journal

Correction to "Ultrasonication-Triggered Ubiquitous Assembly of Magnetic Janus Amphiphilic Nanoparticles in Cancer Theranostic Applications".

Nano letters·2026
Same journal

Tunable Proximity Valley Splitting Via Interfacial Exchange Pinning in WSe<sub>2</sub>-CrBr<sub>3</sub>-CrPS<sub>4</sub> Heterostructures.

Nano letters·2026
Same journal

Nanoscale Organization of Membrane Tension during Neutrophil Extracellular Trap Formation Revealed by Fluorescence Lifetime Imaging.

Nano letters·2026
Same journal

Pressure-Tuned Plasmonic Propagation on a Silver Nanowire.

Nano letters·2026
Same journal

Intrinsic Superconducting Gap in Bilayer KCa<sub>2</sub>Fe<sub>4</sub>As<sub>4</sub>F<sub>2</sub> and Decoupled Monolayer FeAs.

Nano letters·2026
Same journal

Programmable Hydrogen-Assisted Chemical Vapor Deposition Growth and Bipolar Transport in Two-Dimensional MoO<sub>2</sub> Nanoflakes.

Nano letters·2026
See all related articles

Related Experiment Video

Updated: Jun 1, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
08:48

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

A carpet cloak for visible light.

Majid Gharghi1, Christopher Gladden, Thomas Zentgraf

  • 1NSF Nanoscale Science and Engineering Center, University of California, Berkeley 3112 Etcheverry Hall, UC Berkeley, California 94720, United States.

Nano Letters
|May 31, 2011
PubMed
Summary
This summary is machine-generated.

Researchers developed an invisibility cloak using silicon nitride that makes objects undetectable by visible light. This breakthrough enables wideband invisibility across the visible spectrum with minimal loss.

More Related Videos

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

Measurement of Carotenoids in Perifovea using the Macular Pigment Reflectometer
09:35

Measurement of Carotenoids in Perifovea using the Macular Pigment Reflectometer

Published on: January 29, 2020

Related Experiment Videos

Last Updated: Jun 1, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
08:48

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

Measurement of Carotenoids in Perifovea using the Macular Pigment Reflectometer
09:35

Measurement of Carotenoids in Perifovea using the Macular Pigment Reflectometer

Published on: January 29, 2020

Area of Science:

  • Optics and Photonics
  • Materials Science
  • Nanotechnology

Background:

  • Achieving invisibility has long been a goal in optics.
  • Transformation optics provides a theoretical framework for manipulating light.
  • Previous invisibility cloaks often suffered from narrow bandwidth or high loss.

Purpose of the Study:

  • To design and fabricate an invisibility carpet cloak device.
  • To render objects undetectable by visible light.
  • To demonstrate wideband invisibility with low loss.

Main Methods:

  • Utilized quasi conformal mapping for cloak design.
  • Fabricated the cloak using silicon nitride on a nanoporous silicon oxide substrate.
  • Achieved spatial refractive index variation by etching deep subwavelength holes.

Main Results:

  • Demonstrated a functional invisibility carpet cloak.
  • Achieved wideband invisibility across the entire visible spectrum.
  • Observed low optical loss in the fabricated device.

Conclusions:

  • The developed silicon nitride cloak successfully hides objects from visible light.
  • The fabrication method provides a general scheme for transformation optical devices at visible frequencies.
  • This work advances the practical realization of invisibility and related optical technologies.