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 Experiment Videos

Unidirectional high intensity narrow-linewidth lasing from a planar random microcavity laser.

Qinghai Song1, Liying Liu, Shumin Xiao

  • 1State Key Lab for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, China.

Physical Review Letters
|February 21, 2006
PubMed
Summary

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

Topological phase transition induced by spin-orbit coupling in bilayer graphene.

Journal of physics. Condensed matter : an Institute of Physics journal·2013
Same author

[Survey on the occupational musculoskeletal disorder and its risk factors among male steelworkers].

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2013
Same author

Characterisation and identification of dihydroindole-type alkaloids from processed semen strychni by high-performance liquid chromatography coupled with electrospray ionisation ion trap time-of-flight mass spectrometry.

Phytochemical analysis : PCA·2013
Same author

Identification and effect decomposition of risk factors for Brucella contamination of raw whole milk in china.

PloS one·2013
Same author

Different toxicity of the novel Bacillus thuringiensis (Bacillales: Bacillaceae) strain LLP29 against Aedes albopictus and Culex quinquefasciatus (Diptera: Culicidae).

Journal of economic entomology·2013
Same author

Study on the growth and the photosynthetic characteristics of low energy C(+) ion implantation on peanut.

PloS one·2013

Researchers developed a new planar random microcavity laser. This innovative random laser exhibits highly directional output, narrow linewidth, and ultralow threshold, paving the way for future applications.

Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Materials Science

Background:

  • Random lasers offer unique properties but often lack directionality and efficiency.
  • Planar microcavities provide optical confinement but integrating them with random gain media presents challenges.

Purpose of the Study:

  • To introduce and characterize a novel planar random microcavity laser.
  • To investigate the optical confinement and lasing properties of this new laser architecture.
  • To demonstrate the potential of this design for advanced laser applications.

Main Methods:

  • Fabrication of a planar microcavity structure incorporating a random gain layer.
  • Optical characterization of the laser output, including directionality, linewidth, and threshold.

Related Experiment Videos

  • Theoretical analysis of mode coupling within the random cavity and planar microcavity.

    • Main Results:

    • Successful lasing achieved in the planar random microcavity laser.
    • Highly directional output with a divergence angle of 1.68 degrees demonstrated.
    • Extremely narrow-linewidth and ultralow threshold lasing observed.
    • Coupling between random cavity modes and planar microcavity modes identified as the key mechanism.

    Conclusions:

    • The planar random microcavity laser represents a significant advancement in random laser technology.
    • The unique optical confinement leads to superior laser performance.
    • This development is a crucial step towards practical applications of random lasers.