26 citations · 57 across the 16 of their papers we have counts for
17 papers
Application of Coherent Microwave Scattering and Multiphoton Ionization for Diagnostics of Electric Propulsion Systems
Adam R. Patel, Sashin L. B. Karunarathne, Nicholas Babusis +1
Nonintrusive measurements of plasma properties are essential to evaluate, and numerically simulate, the in-flight performance of electric propulsion systems. As a logical first ste…
Experimental Study of a Low-Voltage Pulsed Plasma Thruster for Nanosatellites
Patrick Gresham, Brian Jeffers, Alexey Shashurin
In this paper, a coaxial pulsed plasma thruster was designed, built, and tested. This design confirmed PPT operation at substantially reduced discharge voltages of 100 to 200 V acr…
Ionization rate and plasma dynamics at 3.9 micron femtosecond photoionization of air
Adam Patel, Claudia Gollner, Rokas Jutas +5
The introduction of mid-IR optical parametric chirped pulse amplifiers (OPCPAs) has catalyzed interest in multi-millijoule, infrared femtosecond pulse-based filamentation. As tunne…
Initial transient stage of pin-to-pin nanosecond repetitively pulsed discharges in air
Xingxing Wang, Adam Patel, Alexey Shashurin
In this work, evolution of parameters of nanosecond repetitively pulsed (NRP) discharges in pin-to-pin configuration in air was studied during transient stage of initial twenty dis…
Experimental study of atmospheric pressure single-pulse nanosecond discharge in pin-to-pin configuration
Xingxing Wang, Adam Patel, Sally Bane +1
In this work, we present an experimental study of nanosecond high-voltage discharges in a pin-to-pin electrode configuration at atmospheric conditions operating in single-pulse mod…
Thomson and Collisional Regimes of In-Phase Coherent Microwave Scattering Off Gaseous Microplasmas
Adam R. Patel, Apoorv Ranjan, Xingxing Wang +3
The total number of electrons in a classical microplasma can be non-intrusively measured through elastic in-phase coherent microwave scattering (CMS). Here, we establish a theoreti…
Combined Microwave and Laser Rayleigh Scattering Diagnostics for Pin-to-Pin Nanosecond Discharges
Xingxing Wang, Adam Patel, Alexey Shashurin
In this work, the temporal decay of electrons produced by an atmospheric pin-to-pin nanosecond discharge operating in the spark regime was measured via a combination of microwave R…
Enhancement of DC-driven flashing corona by dielectric enclosure
Xingxing Wang, Andrei Khomenko, Alexey Shashurin
In this work, the effect of flashing corona enhancement by introducing Teflon dielectric enclosure in vicinity to the electrode assembly was studied. The discharge operating in air…
Liquid-Fed Pulsed Plasma Thruster for Propelling Nanosatellites
Adam R. Patel, Yunping Zhang, Alexey Shashurin
This paper presents a novel micropropulsion system for nanosatellite applications - a liquid fed pulsed-plasma thruster (LF-PPT) comprised of a Lorentz-force pulsed plasma accelera…
Thomson microwave scattering for electron number density diagnostics of miniature plasmas at low pressure
Xingxing Wang, Apoorv Ranjan, Animesh Sharma +2
This work proposes a novel method of Thomson microwave scattering for electron number density measurements of miniature plasmas at pressures < 10 Torr. This method is applied to de…
Direct measurement of electron numbers created at infrared laser-induced ionization of various gases
A. Sharma, M. Slipchenko, K. A. Rahman +2
In this work, we present temporally resolved measurements of electron numbers created at photoionization of various gases by femtosecond laser pulse at 800 nm wavelength. The exper…
Low Energy Surface Flashover for Initiation of Electric Propulsion Devices
Yunping Zhang, Omar Dary, Alexey Shashurin
An approach to utilize Low Energy Surface Flashover (LESF) for triggering the discharge in electric propulsion systems has been demonstrated. LESF uses conventional surface flashov…
Time-Resolved Measurements of Electron Density in Nanosecond Pulsed Plasmas Using Microwave Scattering
Xingxing Wang, Paul Stockett, Ravichandra Jagannath +2
In this work, Rayleigh microwave scattering was utilized to measure the electron number density produced by nanosecond high voltage breakdown in air between two electrodes in a pin…
Counting the electrons in a multiphoton ionization by elastic scattering of microwaves
A. Sharma, M. N. Slipchenko, M. N. Shneider +3
Laser induced plasmas have found numerous applications including plasma-assisted combustion, combustion diagnostics, laser induced breakdown spectroscopy, light detection and rangi…
DC high voltage to drive helium plasma jet comprised of repetitive streamer breakdowns
Xingxing Wang, Alexey Shashurin
This paper demonstrates and studies helium atmospheric pressure plasma jet comprised of series of repetitive streamer breakdowns, which is driven by a pure DC high voltage (auto-os…
Role of substrate temperature at graphene synthesis in arc discharge
Xiuqi Fang, Alexey Shashurin, Michael Keidar
The substrate temperature required for synthesis of graphene in an arc discharge plasma was studied. It was shown that an increase of copper substrate temperature up to the melting…
Modeling radio communication blackout and blackout mitigation in hypersonic vehicles
Madhusudhan Kundrapu, John Loverich, Kristian Beckwith +3
A procedure for the modeling and analysis of radio communication blackout of hypersonic vehicles is presented. The weakly ionized plasma generated around the surface of a hypersoni…