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 Video

Updated: Jun 21, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Distributed feedback ring resonators for vertically emitting terahertz quantum cascade lasers.

Lukas Mahler1, Maria I Amanti, Christoph Walther

  • 1NEST, CNR-INFM and Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126, Pisa, Italy. l.mahler@sns.it

Optics Express
|August 6, 2009
PubMed
Summary
This summary is machine-generated.

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

Quantum Light Emission from GaAs<sub><i>x</i></sub>P<sub>1-<i>x</i></sub> Quantum Dots in Wurtzite GaP Nanowires.

ACS applied materials & interfaces·2026
Same author

Frequency and intensity noise of a grating-tuned external-cavity quantum cascade laser.

Optics express·2026
Same author

Light-Triggered Bending in Photochromic/Graphene Oxide Bilayers via Synergistic Photo-Thermal Actuation and Mechanical Amplification.

ACS applied materials & interfaces·2026
Same author

Continuously tunable coherent pulse generation in a semiconductor laser.

Nature·2026
Same author

Broadband comb spectroscopy through spectral envelope shaping.

Nature communications·2026
Same author

Metasurface-enhanced mid-infrared imaging spectroscopy with broadband quantum cascade lasers.

Nature communications·2026
Same journal

Denoising algorithm of Φ-OTDR systems based on adaptive fractional wavelet transform denoising.

Optics express·2026
Same journal

Millisecond photon-to-photon latency and high-speed volumetric projection system for optogenetics.

Optics express·2026
Same journal

Polarization-encoded coaxial structured light for high-precision 3D surface profilometry.

Optics express·2026
Same journal

Discrete freeform optical design based on collaborative optimization of point cloud and local normals.

Optics express·2026
Same journal

Ultrafast ghost imaging with 25 GHz speckle switching and wavelength-division multiplexing.

Optics express·2026
Same journal

Atomic vapor cells fabricated by femtosecond laser welding of standard-optical-quality glass.

Optics express·2026
See all related articles

We developed new Terahertz quantum cascade lasers in a ring waveguide, achieving high-power, single-mode vertical emission. This design enhances electrical contact and power output for advanced terahertz applications.

Area of Science:

  • Optics and Photonics
  • Semiconductor Devices
  • Quantum Electronics

Background:

  • Terahertz (THz) quantum cascade lasers (QCLs) are crucial for various applications.
  • Efficient power extraction and beam collimation remain challenges in THz QCL design.

Purpose of the Study:

  • To present a novel distributed-feedback (DFB) THz QCL.
  • To demonstrate high-power, single-mode vertical emission using a double-metal ring waveguide.

Main Methods:

  • Fabrication of DFB THz QCLs within a double-metal ring waveguide.
  • Utilizing a double-slit configuration for electrical contacts and power out-coupling.
  • Employing finite element simulations to analyze optical properties.

Main Results:

More Related Videos

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Related Experiment Videos

Last Updated: Jun 21, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

  • Achieved high-power, collimated emission in the vertical direction.
  • Observed single spectral mode operation.
  • Demonstrated efficient power out-coupling through the double-slit design.

Conclusions:

  • The double-metal ring waveguide DFB THz QCL offers a promising platform for high-performance THz sources.
  • The employed design facilitates efficient electrical injection and optical out-coupling.
  • Simulations confirm the optical characteristics and validate the device design.