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

Search research articles

Related Experiment Video

Updated: Dec 31, 2025

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

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

Published on: July 12, 2017

Subterahertz Photonic Crystal Klystron Amplifier.

J C Stephens¹, G Rosenzweig¹, M A Shapiro¹

¹Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Physical Review Letters

|January 11, 2020

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

Total neoadjuvant therapy in early-onset versus average-onset locally advanced rectal cancer: patient characteristics and tolerance of therapy.

ESMO gastrointestinal oncology·2026

Same author

Correction to: Study of the Effect of Reflections on High-Power, 110-GHz Pulsed Gyrotron Operation.

Journal of infrared, millimeter and terahertz waves·2022

Same author

Study of the Effect of Reflections on High-Power, 110 GHz Pulsed Gyrotron Operation.

Journal of infrared, millimeter and terahertz waves·2021

Same author

Apparatus for skidding sensitivity testing of energetic materials.

The Review of scientific instruments·2021

Same author

Design, synthesis, and biological evaluation of aryl piperazines with potential as antidiabetic agents via the stimulation of glucose uptake and inhibition of NADH:ubiquinone oxidoreductase.

European journal of medicinal chemistry·2020

Same author

Measurement of Dielectric Multipactor Thresholds at 110 GHz.

Physical review letters·2019

Researchers demonstrated subterahertz radiation amplification using a novel photonic crystal klystron. This breakthrough in klystron amplifier technology paves the way for future terahertz frequency applications.

Area of Science:

Physics
Electrical Engineering
Materials Science

Background:

Klystrons are vacuum electronic devices crucial for generating high-frequency electromagnetic waves.
Extending klystron operation into the subterahertz and terahertz (THz) regions presents significant technological challenges.
Photonic crystals offer unique electromagnetic wave manipulation properties that can be leveraged in device design.

Purpose of the Study:

To experimentally demonstrate the amplification of subterahertz radiation in a klystron utilizing photonic crystal cavities.
To investigate the performance characteristics of a novel klystron design incorporating oversized photonic crystal cells.
To validate simulation predictions with experimental results for a photonic crystal klystron amplifier.

Main Methods:

More Related Videos

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

Related Experiment Videos

Last Updated: Dec 31, 2025

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

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

Published on: July 12, 2017

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

Fabrication of a six-cavity klystron with oversized photonic crystal cells featuring a central beam tunnel.
Operation of a pulsed electron beam (23.5 kV, 330 mA) within a 0.5 T solenoidal magnetic field.
Measurement of small-signal gain and saturated output power at 93.7 GHz.

Main Results:

Achieved a small-signal gain of 26 dB at 93.7 GHz.
Obtained a saturated output power of 30 W.
Experimental results showed excellent agreement with particle-in-cell code simulations.

Conclusions:

Successfully demonstrated high gain amplification of subterahertz radiation using a photonic crystal klystron.
The novel design with oversized photonic crystal cavities enables efficient power coupling and high-frequency operation.
This work represents a significant step towards realizing klystron amplifiers in the terahertz frequency range.