48 citations · 108 across the 12 of their papers we have counts for
12 papers
A Comprehensive Study on the Line Profiles and Stark Widths of Ionic Transitions from Laser Produced Aluminum Plasma
B R Geethika, Judhishtir Shamal, Renjtih Kumar +2
We present a systematic spectroscopic investigation of laser-produced aluminum plasma to address inconsistencies in Stark broadening parameters and establish a self-consistent refe…
On the enhanced Balmer emission of hydrogen in helium Capacitively Coupled Radio Frequency (CCRF) plasma
Varsha S, Prabhakar Srivastav, Yukti Goel +3
The present study investigates the observation and enhancement in the intensity of the hydrogen Balmer series emission in a He CCRF plasma using optical emission spectroscopy (OES)…
Effect of ambient on the dynamics of re-deposition in the rear laser ablation of a thin film
Renjith Kumar R, B R Geethika, Nancy Verma +4
In this work, we report an innovative pump-probe based experimental set up, to study the melting, subsequent evaporation, plasma formation and redeposition in a thin film coated on…
Effect of polarization on spectroscopic characterization of laser produced aluminium plasma
B. R. Geethika, Jinto Thomas, Renjith Kumar R +2
Laser-induced breakdown spectroscopy (LIBS) is a well-established technique widely used in fundamental research and diverse practical fields. Polarization-resolved LIBS, a variant…
Spatio-temporal dynamics of anisotropic emission from nano second laser produced aluminium plasma
Geethika B. R., Jinto Thomas, Milaan Patel +2
Polarized emission carries captivating information and can help understand various elementary processes involving collisions within the plasma as well as in radiative transitions.…
Shielded ionisation discharge (SID) probe for spatio-temporal profiling of pulsed molecular beam
Milaan Patel, Jinto Thomas, Hem Chandra Joshi
In this work we report a shielded ionization discharge (SID) probe which is conceptualized, designed and implemented for measuring temporal and spatial density profiles in a pulsed…
Review On Laser Induced Breakdown spectroscopy: Methodology and Technical Developments
Jinto Thomas, Hem Chandra Joshi
In this review we attempt to provide a brief account of laser induced breakdown spectroscopy (LIBS) methodology and technological developments. We also summarise various methods ad…
Experimental investigation of free jets through supersonic nozzles
Milaan Patel, Jinto Thomas, Hem Chandra Joshi
In this paper, we report experimental investigation to improve the shape of a supersonic nozzle for rarefied flows to generate high axial density at extended distances from the noz…
Anomalous time of flight behavior of fast ions in laser produced aluminum plasma
Garima Arora, Jinto Thomas, Hem Chandra Joshi
In this work, dynamics of multi-charged ions emitted from an aluminum plasma produced by Q switched Nd: Yag laser is studied using time of flight (TOF) measurements from Langmuir P…
On the delayed emission from laser produced aluminum plasma under argon environment
Garima Arora, Jinto Thomas, Hem Chandra Joshi
In this article, we report rather long time emission ( 250 ) from aluminum neutrals (Al I) in ns laser produced plasma in the presence of ambient argon. The study is carr…
Flow characterization of supersonic gas jets: Experiments and Simulations
Milaan Patel, Jinto Thomas, Hem Chandra Joshi
In present work, we report an experimental setup that has been developed to characterize highly under-expanded helium and nitrogen jets confined in a vacuum chamber. The evolution…
Observation of ion acceleration in nanosecond laser generated plasma on a nickel thin film under forward ablation geometry
Jinto Thomas, Hem Chandra Joshi, Ajai kumar +1
In this article we report acceleration observed for ions in a forward ablation geometry of 50 nm thick nickel film coated on a glass plate under nanosecond laser ablation. A detail…