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

Flame Photometry: Overview01:02

Flame Photometry: Overview

Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
Focusing of Light in the Eye01:16

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 Microscopy01:16

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,...
Flame Photometry: Lab01:16

Flame Photometry: Lab

In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
Imaging Biological Samples with Optical Microscopy01:18

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...
Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which are...

You might also read

Related Articles

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

Sort by
Same author

Integrating machine learning and pathway modelling to explore factors associated with chronic post-surgical pain and quality of life: a secondary observational analysis of the ENIGMA-II trial.

BJA open·2026
Same author

Characterising anthelmintic resistance to benzimidazoles and macrocyclic lactones in gastrointestinal nematodes of dairy cattle.

International journal for parasitology. Drugs and drug resistance·2026
Same author

Perioperative intravenous fluid and chronic kidney disease: long-term follow-up of the Restrictive versus Liberal Fluid Therapy in Major Abdominal Surgery (RELIEF) randomised trial.

British journal of anaesthesia·2026
Same author

Encoding orbital angular momentum of light in space with optical catastrophes.

Nature communications·2026
Same author

Roadmap on singular optics and its applications.

Applied physics. B, Lasers and optics·2026
Same author

Disordered mosaic metasurfaces with scalable functional density.

Nature communications·2026

Related Experiment Video

Updated: May 11, 2026

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers
20:00

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Focusing light with a flame lens.

Max M Michaelis1, Cosmas Mafusire, Jan-Hendrik Grobler

  • 1School of Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.

Nature Communications
|May 23, 2013
PubMed
Summary
This summary is machine-generated.

Researchers developed the first flame lens, a novel optical device for focusing high-power laser beams. This innovative lens offers superior damage resistance and self-repair capabilities compared to conventional solid-state lenses.

More Related Videos

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
06:16

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

Published on: April 25, 2019

Design and Building of a Customizable, Single-Objective, Light-Sheet Fluorescence Microscope for the Visualization of Cytoskeleton Networks
08:32

Design and Building of a Customizable, Single-Objective, Light-Sheet Fluorescence Microscope for the Visualization of Cytoskeleton Networks

Published on: January 26, 2024

Related Experiment Videos

Last Updated: May 11, 2026

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers
20:00

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers

Published on: October 31, 2015

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
06:16

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

Published on: April 25, 2019

Design and Building of a Customizable, Single-Objective, Light-Sheet Fluorescence Microscope for the Visualization of Cytoskeleton Networks
08:32

Design and Building of a Customizable, Single-Objective, Light-Sheet Fluorescence Microscope for the Visualization of Cytoskeleton Networks

Published on: January 26, 2024

Area of Science:

  • Optics and Photonics
  • Laser Technology
  • Materials Science

Background:

  • Conventional solid-state lenses are prone to optical damage when focusing high-power laser beams.
  • Existing non-solid lensing methods, such as heated gases, have limitations like long focal lengths.
  • High-power laser beam delivery necessitates robust and damage-resistant optical components.

Purpose of the Study:

  • To introduce and characterize the first flame lens as a novel optical lensing device.
  • To demonstrate the flame lens's improved focal power and damage threshold compared to existing technologies.
  • To explore the potential of flame lenses for applications involving high-irradiance laser beams.

Main Methods:

  • Development of a flame-based lensing system utilizing a controlled flame.
  • Characterization of the flame lens's focusing properties, including focal length and light scattering.
  • Evaluation of the flame lens's damage threshold and self-repair capabilities under high laser power exposure.

Main Results:

  • The flame lens achieves a sharp focus with minimal stray light.
  • It exhibits a fourfold increase in focal power per unit length compared to previous gas lenses.
  • The flame lens demonstrates a damage threshold several orders of magnitude higher than conventional lenses and self-repairs after damage.

Conclusions:

  • The flame lens represents a significant advancement in optical lensing for high-power laser applications.
  • Its inherent damage resistance and self-repairing nature make it suitable for focusing high-irradiance laser beams.
  • This technology offers a promising alternative to conventional lenses in demanding laser environments.