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

You might also read

Related Articles

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

Sort by
Same author

Reply: Global consensus on the evidence-based functional classification of simultaneous vision IOLs.

Journal of cataract and refractive surgery·2026
Same author

An Evidence-Based Pathway from Functional Classification to Intraocular Lens Specialization: A Case Example Applying the PECO Framework.

Ophthalmology and therapy·2026
Same author

Normative Data of Higher-Order Aberrations in Healthy Caucasian Eyes and Their Correlation with Age, Gender, and Spherical Equivalent.

Clinical ophthalmology (Auckland, N.Z.)·2026
Same author

Reply : Evidence-based functional classification of simultaneous vision intraocular lenses: seeking a global consensus by the ESCRS Functional Vision Working Group.

Journal of cataract and refractive surgery·2026
Same author

Intra-cavity spectral modulation observed in high-Q pulsed dye lasers.

Optics express·2026
Same author

Global consensus on the evidence-based functional classification of simultaneous vision IOLs.

Journal of cataract and refractive surgery·2026

Related Experiment Video

Updated: Feb 25, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

12.0K

Random Laser Action in Nd:YAG Crystal Powder.

Jon Azkargorta1, Iñaki Iparraguirre2, Macarena Barredo-Zuriarrain3

  • 1Departamento de Física Aplicada I, Escuela Superior de Ingeniería, Universidad del País Vasco UPV/EHU, Alameda Urquijo s/n, Bilbao 48013, Spain. jon.azkargorta@ehu.eus.

Materials (Basel, Switzerland)
|August 5, 2017
PubMed
Summary

This study demonstrates room temperature random stimulated emission from Neodymium-doped yttrium aluminum garnet (Nd:YAG) crystal powder. Researchers achieved surprising high efficiency without internal mirrors, advancing laser technology.

Keywords:
crystal powderneodymiumrandom lasers

More Related Videos

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.6K
Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model
06:54

Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model

Published on: August 22, 2015

14.5K

Related Experiment Videos

Last Updated: Feb 25, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

12.0K
Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.6K
Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model
06:54

Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model

Published on: August 22, 2015

14.5K

Area of Science:

  • Solid-state laser physics
  • Photonics and optical materials

Background:

  • Neodymium-doped yttrium aluminum garnet (Nd:YAG) is a widely used laser medium.
  • Achieving efficient stimulated emission in powdered forms presents unique challenges.
  • Previous research often relies on complex resonator structures.

Purpose of the Study:

  • To investigate room temperature random stimulated emission in Nd:YAG crystal powder.
  • To analyze laser performance characteristics in a simplified, mirrorless pump configuration.
  • To quantify the efficiency of stimulated emission and laser slope efficiency.

Main Methods:

  • Utilized a simple pump configuration without internal mirrors.
  • Measured laser threshold energy varying pump beam area and wavelength.
  • Analyzed temporal dynamics of emission pulses.
  • Employed a novel method for measuring absolute stimulated emission energy and slope efficiency.

Main Results:

  • Successfully achieved random stimulated emission at 1.064 μm from Nd:YAG powder.
  • Demonstrated surprisingly high laser efficiency despite low Neodymium ion concentration.
  • Characterized the dependence of threshold energy on pump parameters.

Conclusions:

  • Room temperature random stimulated emission is feasible in Nd:YAG crystal powder.
  • The simplified, mirrorless configuration yields high efficiency, offering potential for new laser designs.
  • The findings are significant given the low dopant concentration.