Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Confocal Fluorescence Microscopy

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

You might also read

Related Articles

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

Sort by

Same author

Heterogeneous iron oxide nanoparticles anchored on carbon nanotubes for high-performance lithium-ion storage and fenton-like oxidation.

Journal of colloid and interface science·2021

Same author

Cost-effectiveness analysis of the integrated control strategy for schistosomiasis japonica in a lake region of China: a case study.

Infectious diseases of poverty·2021

Same author

Targeting Gα<sub>13</sub>-integrin interaction ameliorates systemic inflammation.

Nature communications·2021

Same author

Screening and mitigating major threats of regional development to water ecosystems using ecosystem services as endpoints.

Journal of environmental management·2021

Same author

Facile synthesis of a rod-like porous carbon framework confined magnetite nanoparticle composite for superior lithium-ion storage.

Journal of colloid and interface science·2021

Same author

Wafer-Scale and Full-Coverage Two-Dimensional Molecular Monolayers Strained by Solvent Surface Tension Balance.

ACS applied materials & interfaces·2021

Search research articles

Related Experiment Video

Updated: Dec 15, 2025

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Low-threshold topological nanolasers based on the second-order corner state.

Weixuan Zhang^1,2, Xin Xie^3,4, Huiming Hao⁵

¹Key Laboratory of advanced optoelectronic quantum architecture and measurements of Ministry of Education, School of Physics, Beijing Institute of Technology, 100081 Beijing, China.

Light, Science & Applications

|July 9, 2020

Summary

Researchers demonstrate a novel topological nanolaser immune to imperfections. This high-performance device, utilizing a 0D corner state, offers a low threshold and high efficiency for future photonic circuits.

Keywords:

Nanocavities Nanophotonics and plasmonics Quantum dots

More Related Videos

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Related Experiment Videos

Last Updated: Dec 15, 2025

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale

Published on: May 25, 2016

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Area of Science:

Photonics
Condensed Matter Physics
Quantum Optics

Background:

Topological lasers offer robustness against disorder and imperfections.
Existing topological lasers are typically microscale, limiting on-chip applications.
Realizing 2D on-chip topological nanolasers with high performance remains a challenge.

Purpose of the Study:

To experimentally demonstrate a high-performance 2D topological nanolaser.
To explore the potential of topological corner states for nanolasers.
To achieve a small footprint, low threshold, and high energy efficiency in topological nanolasers.

Main Methods:

Fabrication of a 2D photonic crystal slab.
Creation of a topological nanocavity using Wannier-type 0D corner states.
Integration of quantum dots as the active lasing material.

Main Results:

Experimental demonstration of lasing from a topological nanocavity.
Achieved a low lasing threshold of approximately 1 µW.
Observed a high spontaneous emission coupling factor of 0.25.
Performance comparable to conventional photonic crystal nanolasers.

Conclusions:

The first experimental realization of a low-threshold topological nanolaser.
Demonstrated the potential of 0D corner states for high-performance nanophotonics.
Paves the way for topological nanophotonic circuitry for classical and quantum applications.