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

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

5.3K
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...
5.3K
Light as Energy01:35

Light as Energy

94.8K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
94.8K
The Wave Nature of Light02:12

The Wave Nature of Light

60.7K
The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
60.7K
Light Acquisition02:16

Light Acquisition

9.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.4K
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

3.5K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
3.5K
Photoluminescence: Applications01:14

Photoluminescence: Applications

1.0K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.0K

You might also read

Related Articles

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

Sort by
Same author

Sunset of you.

Palliative & supportive care·2026
Same author

The pearl earrings.

Palliative & supportive care·2026
Same author

A whisper from dementia.

Palliative & supportive care·2026
Same author

Alone.

Palliative & supportive care·2026
Same author

Death comes.

Palliative & supportive care·2025
Same author

Effect of dignity therapy on meaning in life scores of cancer patients in palliative care.

Palliative & supportive care·2025

Related Experiment Video

Updated: Jan 14, 2026

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials
07:12

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

2.9K

Where the light lingers

Miguel Julião1

  • 1Cuidados Paliativos, Equipa Comunitária de Suporte em Cuidados Paliativos PalCo, Amadora, Portugal.

Palliative & Supportive Care
|October 24, 2025
PubMed
Summary

No abstract available in PubMed .

More Related Videos

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
08:35

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System

Published on: December 16, 2019

9.7K
Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae
07:14

Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae

Published on: April 20, 2013

13.4K

Related Experiment Videos

Last Updated: Jan 14, 2026

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials
07:12

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

2.9K
Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
08:35

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System

Published on: December 16, 2019

9.7K
Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae
07:14

Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae

Published on: April 20, 2013

13.4K