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

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...
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.
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...

You might also read

Related Articles

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

Sort by
Same author

Electrospun Ti-Zr Oxide Heterostructures Enable Strongly Anchored Ultralow-Ir Anodes for Durable Acidic Oxygen Evolution.

Journal of the American Chemical Society·2026
Same author

A hybrid biofabrication platform for patient-specific aortic phantoms: from surgical rehearsal to device testing.

Computer assisted surgery (Abingdon, England)·2026
Same author

MonoGID: geometry and illumination aware enhancement with distillation for self-supervised monocular endoscopic depth estimation.

BMC medical imaging·2026
Same author

Sustainable Interfacial Evaporator Fabricated from Delignified Wood for Wastewater Treatment.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Bronchoscopy-guided non-capping decannulation pathway versus conventional capping trial in patients with prolonged tracheostomy: a retrospective comparative cohort study.

Frontiers in medicine·2026
Same author

Progress in mechanistic and clinical translational research of endothelin A receptor antagonists in the treatment of diabetic kidney disease: a narrative review.

Frontiers in endocrinology·2026

Related Experiment Video

Updated: Jul 3, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Intense ultraviolet upconversion luminescence from hexagonal NaYF4:Yb3+/Tm3+ microcrystals.

Guofeng Wang1, Weiping Qin, Lili Wang

  • 1State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun 130012, P. R. China.

Optics Express
|August 6, 2008
PubMed
Summary

Unusual upconversion emissions from thulium (Tm3+) ions in NaYF4 microcrystals were observed. Efficient cross-relaxation and phonon-assisted energy transfers complicated emission intensity dependence on excitation power.

More Related Videos

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
11:20

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation

Published on: August 30, 2017

Related Experiment Videos

Last Updated: Jul 3, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
11:20

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation

Published on: August 30, 2017

Area of Science:

  • Materials Science
  • Solid-State Physics
  • Luminescence

Background:

  • Hexagonal NaYF4 microcrystals doped with Ytterbium (Yb3+) and Thulium (Tm3+) ions are investigated.
  • Upconversion luminescence in rare-earth-doped materials is a key area of research.

Purpose of the Study:

  • To investigate unusual upconversion emissions from Tm3+ ions in hexagonal NaYF4:Yb3+/Tm3+ microcrystals.
  • To analyze the complex power-dependent behavior of these emissions.

Main Methods:

  • Optical spectroscopy under 980 nm excitation.
  • Analysis of emission spectra and excitation power dependence.
  • Theoretical modeling of energy transfer processes.

Main Results:

  • Observed unusual 3P2-->3H6 (264 nm) and 3P2-->3F4 (309 nm) emissions from Tm3+ ions.
  • Noted near-vanishing emissions from 1G4 and 3H4 states due to efficient cross-relaxation.
  • Identified non-linear, non-saturating power dependence of upconversion emissions.

Conclusions:

  • Efficient cross-relaxation significantly impacts Tm3+ emission pathways.
  • Phonon-assisted energy transfer and nonradiative relaxation contribute to complex power-dependent luminescence.