49 citations · 269 across the 42 of their papers we have counts for
10 papers · 1 filter
Dual-mode rf cavity: design, tuning and performance
Benjamin Sims, David Sims, Sergey V. Baryshev +1
We present the design and characterization of a dual-mode radiofrequency (rf) cavity, a novel electromagnetic structure with potential benefits such as compactness, efficiency, cos…
Thermal and electric field driven breakdown precursor formation on metal surfaces
Ryo Shinohara, Soumendu Bagchi, Evgenya Simakov +2
The phenomenon of electric breakdown poses serious challenge to the design of devices that operate under high gradient environments. Experimental evidence often points towards brea…
Scalable Production and Supply Chain of Diamond using Microwave Plasma: a Mini-review
Sergey V. Baryshev, Matthias Muehle
Discovered and reported exactly 40 years ago, microwave plasma assisted chemical vapor deposition (MPACVD) pointed out an economic technology that could potentially produce lab-gro…
Useful Circuit Analogies to Model THz Field Effect Transistors
Adam Gleichman, Kindred Griffis, Sergey V. Baryshev
The electron fluid model in plasmonic field effect transistor (FET) operation is related to the behavior of a radio-frequency (RF) cavity. This new understanding led to finding the…
Bright Spatially Coherent Beam from Carbon Nanotube Fiber Field Emission Cathode
Taha Y. Posos, Sergey V. Baryshev
Large area carbon nanotube (CNT) cathodes made from yarns, films or fibers have long been promising as next generation electron sources for high power radio frequency (rf) and micr…
Confirmation of Transit-Time Limited Field Emission in Advanced Carbon Materials with Fast Pattern Recognition Algorithm
Taha Y. Posos, Oksana Chubenko, Sergey V. Baryshev
An accurate estimation of the experimental field-emission area remains a great challenge in vacuum electronics. The lack of convenient means, which can be used to measure this para…
Travelling Wakefield Tube: THz Source Powered by Nonrelativistic Electron Beam
Mitchell E. Schneider, Emily Jevarjian, Ben Sims +3
High peak power, tunable, narrowband terahertz emitters are becoming sought after given their portability, efficiency, and ability to be deployed in the field for industrial, medic…
Fast Pattern Recognition for Electron Emission Micrograph Analysis
Taha Y. Posos, Oksana Chubenko, Sergey V. Baryshev
In this work, a pattern recognition algorithm was developed to process and analyze electron emission micrographs. Various examples of dc and rf emission are given that demonstrate…
Computationally Assessing Diamond as an Ultrafast Pulse Shaper for High Power Ultrawide Band Radar
Christopher C. Herrmann, Joseph Croman, Sergey V. Baryshev
Diamond holds promise to reshape ultrafast and high power electronics. One such solid-state device is the diode avalanche shaper (DAS), which functions as an ultrafast closing swit…
Field emission microscopy of carbon nanotube fibers: evaluating and interpreting spatial emission
Taha Y. Posos, Steven B. Fairchild, Jeongho Park +1
In this work, we quantify field emission properties of cathodes made from carbon nanotube (CNT) fibers. The cathodes were arranged in different configurations to determine the effe…