Refereed Journal Publications
- "Time-domain simulation of charged particle diffraction by an electrostatically biased grating: Transmission tunability and shaping of the quantum point contact for protons", Journal of Applied Physics, 132, 034401, (2022).
- "Temperature guided behavioral transitions in confined helium: Gas-wall interaction effects on dynamics and transport in the cryogenic limit", Chemical Thermodynamics and Thermal Analysis, 7, 100073, (2022).
- "Physics of plasmas confined by a dipole magnet: insights from compact experiments driven at steady state", Reviews of Modern Plasma Physics (46 pages), 6, 16 (issue), (2022).
- "Optical, structural, and electrical properties of modified indium-tin-oxide (ITO) films on glass surface by low energy ion implantation", Applied Physics A, 128, 605, (2022).
- "Temperature anisotropy governed electrical conductivity tensor in a steady state dipole plasma : Spatially resolved experiments and modeling", Physics of Plasmas, 29, 062105, (2022).
- "Experimental realization of nonlinear demagnification in plasma-based charged particle optics", Plasma Research Express, 4, 025003, (2022).
- "Stability of Al and Ag metallic thin film mirrors in a space environment under the implantation of low energy helium ions", Optics Continuum, 1, 660, (2022).
- "Effect of magnetic field on optical emission from cold atmospheric pressure micro-plasma jet", Physics of Plasmas, 28, 123503, (2021).
- "Optical band gap tailoring of muscovite mica via monolayer modification by ultra-low energy ion beam sputtering", Physica B: Condensed Matter, 623, 413377, (2021).
- "Fluctuations of the plasma potential in atmospheric pressure micro-plasma jets [editors-pick]", AIP Advances, 11, 085128, (2021).
- "Optical Parameters of Atomically Heterogeneous Systems Created by Plasma Based Low Energy Ion Beams: Wavelength Dependence and Effective Medium Model", Frontiers in Physics, 9, 671137, (2021).
- "Microconical Structure Formation and Field Emission From Atomically Heterogeneous Surfaces Created by Microwave Plasma-Based Low-Energy Ion Beams", Frontiers in Physics, 9, 674928, (2021).
- "Characterizing spatially varying optical emissions in a steady-state dipole plasma: inversion based experiments and modeling", Physica Scripta , 96, 035605, (2021).
- "Variable gaseous ion beams from plasmas driven by electromagnetic waves for nano-micro structuring : a tutorial and an overview of recent works and future prospects", Plasma Research Express , 2, 033001, (2020).
- "Tuning optical properties of atomically heterogeneous systems created by plasma-based low-energy ion beams", Applied Optics , 59, 4507, (2020).
- "Characteristics of atmospheric pressure micro-plasma jets in two different modes of excitation depending upon wave amplitude and frequency", Plasma Research Express, 2, 025007, (2020).
- "Steady state densities in a plasma confined by a dipole magnet : Diffusion induced transport explored through direct measurements and modeling ", AIP Advances, 10, 045328, (2020).
- "Particle balance in a steady state plasma in a dipole magnetic field ", Plasma Research Express , 1, 045005, (2019).
- "Effect of plasma and beam parameters on focal dimensions in micrometer charged particle optics: enhanced nonlinear demagnification below the Debye length ", Physics of Plasmas , 26, 63103, (2019).
- "Charge dissipation and self focusing limit in high current density ion beam transport through a micro glass capillary", Journal of Physics D: Applied Physics, 52, 55205 (8 pp), (2019).
- "Wetting hysteresis of atomically heterogeneous systems created by low energy inert gas ion irradiation on metal surfaces: liquid thin film coverage in the receding mode and surface interaction energies ", Applied Surface Science, 470, 773 (10 pp), (2019).
- "Size-controlled growth of nanoparticles and clusters during pulsed laser ablation into an ambient wave induced plasma", Applied Surface Science, 462, 373 (5 pp), (2018).
- "A table top experiment to investigate production and properties of a plasma confined by a dipole magnet", Review of Scientific Instruments, 89, 23503 (6 pp), (2018).
- "Surface wettability of an atomically heterogeneous system and the resulting intermolecular forces", Europhysics Letters, 118, 68006 (7 pp), (2017).
- "Optical Emission Spectroscopy-Based Tomography for Compact Low-Pressure Microwave Plasma in a Multicusp", IEEE Transactions on Plasma Science, 45, 63503 (12 pp), (2017).
- "Characterization of microwave plasma in a multicusp using 2D emission based tomography: Bessel modes and wave absorption", Physics of Plasmas, 24, 063503 (11 pp), (2017).
- "Momentum transfer using variable gaseous plasma ion beams and creation of high aspect ratio microstructures", Journal of Applied Physics, 121, 123302 (9 pp), (2017).
- "Surface conductivity dependent dynamic behaviour of an ultrafine atmospheric pressure plasma jet for microscale surface processing", Applied Surface Science, 390, 489 (8pp), (2016).
- "Design of a Portable Optical Emission Tomography System for Microwave Induced Compact Plasma for Visible to Near-Infrared Emission Lines", Review of Scientific Instruments, 87, 033501 (10pp), (2016).
- "Fluctuations in electron cyclotron resonance plasma in a divergent magnetic field", Physics of Plasmas, 23, 022109 (7pp), (2016).
- "Particle energy distributions and metastable atoms in transient low pressure interpulse microwave plasma", Plasma Sources Science and Technology, 24, 065004 (10pp), (2015).
- "Electron energy probability function and L-p similarity in low pressure inductively coupled bounded plasma", Frontiers in Physics, 3, Article 7 (1), (2015).
- "Investigation of hysteresis in high current ion beam guiding through micro-glass capillary: time and dimension dependence", Journal of Physics D : Applied Physics, 48, 25204, (2015).
- "Genesis of multi-element focused ion beams for plasma nanotechnology using a bounded microwave plasma source", Japanese Journal of Applied Physics, 54, 01AA06, (2015).
- "Rapid measurement of charged particle beam profiles using a current flux grating", Review of Scientific Instruments, 86, 023302 (6pp), (2015).
- "Stopping potential and ion beamlet control for micro-resistive patterning through sub-Debye length plasma apertures", AIP Advances, 4, 127127, (2014).
- "Observation of ion heating during stimulated Buneman instability in a temporally growing plasma", Europhysics Letters, 108, 15001, (2014).
- "Evolution of the electron energy distribution function during genesis of breakdown plasma", Physics of Plasmas, 21, 082103 (7pp), (2014).
- "Dispersion and waves in bounded plasmas with subwavelength inhomogeneities : genesis of MEFIB", AIP Conf. Proceedings, 1582, 239, (2014).
- "Trapping of electrons in troughs of self generated electromagnetic standing waves in a bounded plasma column", Physics of Plasmas, 21, 012111 (7pp), (2014).
- "Experimental investigation of change in sheet resistance and Debye temperatures in metallic thin films due to low-energy ion beam irradiation", Journal of Physics D: Applied Physics, 46, 435304, (2013).
- "Electron random walk and collisional crossover in a gas in presence of electromagnetic waves and magnetostatic fields", Physics of Plasmas, 20, 042118 (6pp), (2013).
- "Negative ion rich plasmas in continuous and pulsed wave modes in a minimum-B magnetic field", Physics of Plasmas, 19, 123517, (2012).
- "Observation of threshold energy and hysteresis in high current ion beam guiding and transmission through a micro-glass-capillary", Applied Physics Letters, 101, 223508, (2012).
- "Utilizing upper hybrid resonance for high density plasma production and negative ion generation in a downstream region", Journal of Applied Physics, 112, 063304 (9pp), (2012).
- "Transition from interpulse to afterglow plasmas driven by repetitive short-pulse microwaves in a multicusp magnetic field", Physics of Plasmas (Letters), 19, 080703 (4pp), (2012).
- "Coexistence of tunneling and displacement currents in a nanogap driven with ac fields", Applied Physics Letters, 100, 153104, (2012).selected for the April 23, 2012 issue of Virtual Journal of Nanoscale Science & Technology. The Virtual Journal, which is published by the American Institute of Physics and the American Physical Society in cooperation with numerous other societies and publishers, is an edited compilation of links to articles from participating publishers, covering a focused area of frontier research.
- "Observation of electron plasma waves inside large amplitude electromagnetic pulses in a temporally growing plasma", Physics of Plasmas, 19, 012118 (8pp), (2012).
- "Optimization of negative ion current in a compact microwave driven upper hybrid resonance multicusp plasma source", Review of Scientific Instruments, 83, 02A706, (2012).
- "Effect of beam limiting aperture and collector potential on multi-element focused ion beams", Review of Scientific Instruments, 83, 02B714, (2012).
- "Generation of cold electrons in the downstream region of a microwave plasma source with near boundary resonances for production of negative ions", Indian Journal of Physics, 85, 1871, (2011).
- "Multi-element focused ion beams using compact microwave plasma ion source", Indian Journal of Physics, 85, 1863, (2011).
- "Localized subsurface modification of materials using micro-low energy multiple ion beamlets", AIP Advances, 1, 042150 (17pp), (2011).selected for research highlights
- "Investigation of effect of exitation frequency on electron energy distribution functions in low pressure radio frequency bounded plasmas", Physics of Plasmas, 18, 072102 (7pp), (2011).
- "Anisotropy induced wave birefringence in bounded supercritical plasma confined in a multicusp magnetic field", Applied Physics Letters, 98, 151501, (2011).
- "Penetration and screening of perpendicularly launched electromagnetic waves through bounded supercritical plasma confined in multicusp magnetic field", Physics of Plasmas, 18, 022101 (11pp), (2011).selected for cover page of volume 18 Number 2
- "Compact electrostatic beam optics for multi-element focused ion beams: Simulation and experiments", Review of Scientific Instruments, 82, 013501 (8pp), (2011).
- "Micron-focused ion beamlets", Journal of Applied Physics, 107, 093307 (5pp), (2010).
- "Ion energy distribution near a plasma meniscus with beam extraction for multielement focused ion beams", Journal of Applied Physics, 107, 093306 (5pp), (2010).
- "Random walk of electrons in a gas in the presence of polarized electromagnetic waves: genesis of a wave induced discharge", Physics of Plasmas, Brief Communication, 16, 104502, (2009).
- "Experimental investigation of transition from Fowler Nordhiem field emission to space-charge-limited flows in a nanogap", Applied Physics Letters, 95, 061501 (3pp), (2009).
- "Ion energy distribution near a plasma meniscus for multielement focused ion beams", Journal of Applied Physics, 105, 096101 (3pp), (2009).
- "Experimental investigation of standing wave interaction with a magnetized plasma in a minimum B field", Physics of Plasmas, 15, 123502 (7pp), (2008).
- "Subcutoff microwave driven plasma ion sources for multi elemental focused ion beam systems", Review of Scientific Instruments, 79, 063504 (5pp), (2008).
- "Experimental study of space-charge-limited flows in a nano-gap", Applied Physics Letters, 92, 191503, (2008).
- "Sub-nanosecond electron transport in a gas in the presence of polarized electromagnetic waves", Journal of Applied Physics, 103, 083305 (6pp), (2008).
- "Microwave guiding and intense plasma generation at sub-cutoff dimensions for focused ion beams", Applied Physics Letters, 91, 041503 (3pp), (2007).
- "Quasi steady state interpulse plasmas", Journal of Applied Physics, 101, 113311, (2007).
- "Sheath formation criterion for negatively charged particles", Journal of Physics D: Applied Physics, 39, 3773, (2006).
- "Generation of chaotic radiation in a driven traveling wave tube amplifier with time-delayed feedback", Physics of Plasmas, 13, 013104 (20pp), (2006).
- "Accurate parametric modeling of folded waveguide circuits for millimeter-wave traveling wave tubes", IEEE Transactions on Electron Devices, 52, 685, (2005).
- "Folded waveguide traveling-wave tube sources for Terehertz radiation", IEEE Transactions on Plasma Science, 32, 1002, (2004).
- "Third-order intermodulation suppression in a klystron by third-order injection", Physical Review Letters, 90, 98303, (2003).
- "Power absorption and intense collimated beam production in the pulsed high power microwave ion source at RIKEN", Review of Scientific Instruments, 73, 620, (2002).
- "On the Surface Condition of Langmuir Probes in Reactive Plasmas", Applied Physics Letters, 79, 2663, (2001).
- "Plasma build-up by short-pulse high-power microwaves", Journal of Applied Physics, 89, 3573, (2001).
- "Production of pulsed microwave plasma in a tube with a radius below the cutoff value", Journal of Physics D, Applied Physics, 33, 1104, (2000).
- "Pulsed microwave plasma production in a conducting tube with a radius below cutoff", Vacuum, 58, 222, (2000).
- "Production of microwave plasma in narrow cros-sectional tubes; effect of the shape of cross section", Review of Scientific Instruments, 70, 3332, (1999).
- "Production of microwave plasma in a waveguide with a dimension below cutoff", Journal of Technical Physics, 40, 213, (1999).
- "Interpulse plasma of a high-power narrow-bandwidth pulsed microwave discharg", Journal of Applied Physics, 84, 115, (1998).
- "Microwave plasma in a multicusp circular waveguide with a dimension below cutoff", Japanese Journal of Applied Physics, 37, 5742, (1998).
- "Transversely magnetized microwave plasma in a rectangular waveguide under cutoff conditions", Review of Scientific Instruments, 68, 3061, (1997).