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

Light as Energy01:35

Light as Energy

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 less...
Light Acquisition02:16

Light Acquisition

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.
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...
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

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...
Photoluminescence: Applications01:14

Photoluminescence: Applications

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...
Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.

You might also read

Related Articles

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

Sort by
Same author

TiO<sub>2</sub> Nanohelices Decorated with Homogeneous Au-Core Pd-Shell Nanocatalysts for Selective Toluene Gas Detection.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Investigating contact resistance between WO<sub>x</sub> and metal electrodes in ECRAMs via interface analysis.

Scientific reports·2025
Same author

Stabilized Co Single-Atom Catalyst via Ion Implantation for Efficient Hydrogen Production.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Analog Switching in Hexagonal Boron Nitride Memristors via Multiple Nano-Filaments Confinement.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Wafer-scale AA-stacked hexagonal boron nitride grown on a GaN substrate.

Nature materials·2025
Same author

Development of fin-LEDs for next-generation inorganic displays using face-selective dielectrophoretic assembly.

Nature communications·2024

Related Experiment Video

Updated: Jul 5, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Solid-state light sources getting smart.

E Fred Schubert1, Jong Kyu Kim

  • 1Department of Electrical, Computer, and Systems Engineering and Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.

Science (New York, N.Y.)
|May 28, 2005
PubMed
Summary

Solid-state lighting offers superior efficiency and controllability over older technologies. These advanced "smart" light sources promise significant energy savings and diverse applications across multiple industries.

Area of Science:

  • Optics and Photonics
  • Materials Science
  • Energy Technology

Background:

  • Incandescent and fluorescent lighting technologies have inherent efficiency limitations.
  • Solid-state light sources represent a significant advancement in lighting technology.
  • Current lighting solutions face fundamental constraints in energy efficiency.

Purpose of the Study:

  • To highlight the revolutionary potential of solid-state light sources.
  • To underscore the advantages of solid-state lighting over traditional methods.
  • To explore the broad applicability of advanced lighting technologies.

Main Methods:

  • Comparative analysis of lighting technologies.
  • Discussion of solid-state source efficiency and controllability.

More Related Videos

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
07:16

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Published on: September 27, 2019

Related Experiment Videos

Last Updated: Jul 5, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
07:16

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Published on: September 27, 2019

  • Exploration of potential application benefits.
  • Main Results:

    • Solid-state sources surpass conventional lighting in efficiency.
    • These sources offer unprecedented control over light properties (spectrum, color, modulation).
    • High efficiency leads to energy savings and environmental benefits.

    Conclusions:

    • Solid-state lighting is revolutionizing numerous applications.
    • Controllable "smart" light sources offer vast potential benefits.
    • Future advancements are limited only by innovation in solid-state lighting.