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

Quantum Numbers

Quantum Numbers

It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

We describe methods for the design, fabrication, and experimental characterization of plasmonic photoconductive emitters, which offer two orders of magnitude higher terahertz power levels compared to conventional photoconductive...

Intracellular Signaling Cascades

Intracellular Signaling Cascades

Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Synthesis of Non-uniformly Pr-doped SrTiO₃ Ceramics and Their Thermoelectric Properties

A protocol for the synthesis and processing of polycrystalline SrTiO3 ceramics doped non-uniformly with Pr is presented along with the investigation of their thermoelectric...

Rab Cascades

Rab Cascades

Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Silicon photonic chips have the potential to realize complex integrated quantum systems. Presented here is a method for preparing and testing a silicon photonic chip for quantum...

You might also read

Related Articles

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

Sort by

Same author

Mid-Infrared Sensing and Ultrafast Photoresponse in Silicon-Based Plasmonic Detectors.

ACS photonics·2026

Same author

Tunable comb operation in terahertz quantum cascade ring lasers.

Optics express·2025

Same author

Surface-emitting ring quantum cascade lasers.

Nanophotonics (Berlin, Germany)·2025

Same author

Micro-mirror aided mid-infrared plasmonic beam combiner monolithically integrated with quantum cascade lasers and detectors.

Nanophotonics (Berlin, Germany)·2025

Same author

An interband cascade laser based heterodyne detector with integrated optical amplifier and local oscillator.

Nanophotonics (Berlin, Germany)·2024

Same author

Design and performance of GaSb-based quantum cascade detectors.

Nanophotonics (Berlin, Germany)·2024

Search research articles

Related Experiment Video

Updated: Jan 19, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Thermoelectric-cooled terahertz quantum cascade lasers.

Martin A Kainz, Mykhaylo P Semtsiv, Georgios Tsianos

|September 13, 2019

Summary

We achieved the first lasing from a thermo-electrically cooled terahertz quantum cascade laser (THz QCL). This breakthrough enables compact THz QCLs operating at higher temperatures, advancing terahertz technology.

More Related Videos

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Published on: August 15, 2015

Quantum Numbers- Principal, Azimuthal, Magnetic and Spin

Quantum Numbers- Principal, Azimuthal, Magnetic and Spin

Related Experiment Videos

Last Updated: Jan 19, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties

Published on: August 15, 2015

Quantum Numbers- Principal, Azimuthal, Magnetic and Spin

Quantum Numbers- Principal, Azimuthal, Magnetic and Spin

Area of Science:

Terahertz Science and Technology
Semiconductor Lasers
Thermoelectric Cooling

Background:

Terahertz quantum cascade lasers (THz QCLs) are crucial for various applications but typically require cryogenic cooling.
Achieving compact and efficient THz QCLs operating at higher temperatures remains a significant challenge in the field.

Purpose of the Study:

To demonstrate the first successful lasing emission from a THz QCL utilizing thermoelectric cooling.
To investigate the performance characteristics of a THz QCL when operated with a thermoelectric cooler.

Main Methods:

A high-temperature three-well THz QCL operating at 3.8 THz was integrated with a custom five-stage thermoelectric cooler.
The thermoelectric cooler achieved a temperature difference of ΔT = 124 K, cooling the THz QCL.
The laser's performance was analyzed across varying temperatures and time scales.

Main Results:

Successful lasing emission was demonstrated from the thermo-electrically cooled THz QCL.
The device exhibited a peak pulse power of 4.4 mW.
A peak average output power of 100 μW was achieved during steady-state operation.

Conclusions:

Thermoelectric cooling is a viable method for operating THz QCLs at higher temperatures.
This work paves the way for more compact, robust, and potentially field-deployable THz QCL systems.
The demonstrated performance highlights the potential of integrated thermoelectric cooling for terahertz sources.