Research Center For Compact Radiation Source

About RCCRS

The aim of the centre is to undertake novel theoretical investigations and computational studies for next-generation compact sources for radiation generation, which have potential to make them widely available and relatively inexpensive, thus enabling their applications in areas such as cancer therapy, materials studies etc., and the application of high brightness ultra-short pulses of radiation. The theoretical study provides essential input to experiments and R&D to demonstrate compact sources for radiation generation. This centre addresses this need. Amongst the useful applications that these could be put to use on are imaging connected with radiotherapy, to increase their efficacy, and border security applications where penetrating radiation is required. They will also contribute to large facilities where unique radiation sources are required and also to industrial applications where a compact source is required. The main aim of the centre is the enhancement of the yield of radiations and the development of new approach, which will open the path to many innovations at the interface between nano-engineering and high-intensity lasers.

Research Areas

Microwaves, Millimeter and Sub-Millimeter Waves, THz Radiation Generation Laser Plasma Interactions
Novel Ideas for Free Electron Lasers and X-Ray Free Electron Lasers Compact Sources for X-Rays and Gamma Rays Generation
Compact Synchrotron Radiation Sources, Plasma Based Radiation Sources
Light Matter Interaction at Nanoscale, Plasmonics, Photonics, Metamaterials Other Applied Physics Research Areas

PUBLICATIONS

Pawan Kumar, Ion coulomb explosion of clusters embedded laser plasma channel, submitted to Appl. Phys. Lett. (2018).
Pawan Kumar, Laser beat excitation of an upper hybrid wave in a rippled density plasma and acceleration of electrons, submitted to Phys. Plasmas (2018).
Satish Kumar Rajouria and Pawan Kumar, Relativistic frequency shifting of laser pulse on reflection from critical layer in a plasma, submitted to Optics. Letters (2018). Rakhee Malik, R. Uma and Pawan Kumar, Two color laser driven THz generation in clustered plasma, Phys. Plasmas 24, 073109 (2017).
Pawan Kumar, Rajeev Kumar and Satish Kumar Rajouria, Cherenkov THz surface plasmons excitation in ultrathin metal film by relativistic electron beam. J. Appl. Phys. 120, 223101 (2016).
Pawan Kumar, Manish Kumar and V. K. Tripathi, Linear mode conversion of THz radiation into surface magnetoplasmons a rippled n-InSb slab, Optics Letters Vol. 41, Issue no.6 (2016). Ashok Kumar and Pawan Kumar, Electron beam induced THz emissions from nanotube array, Phys. Plasmas 23, 103302 (2016).
Pawan Kumar, Lalita Bhasin, V. K. Tripathi, Ashok Kumar, and Manoj Kumar, Smith–Purcell terahertz radiation from laser modulated electron beam over a metallic grating, Physics of Plasmas 23, 093301 (2016).
Lalita Bhasin and V. K. Tripathi and Pawan Kumar, Laser beat wave resonant THz generation in a magnetized plasma channel, Phys. Plasmas, 23, 023101 (2016).
Pawan Kumar, Megagauss magnetic field generation by amplitude modulated surface plasma wave over a rippled metal surface, Optics Lett. Vol. 40, No.2, 190 (2015).
Pawan Kumar, V. K. Tripathi, Ashok Kumar and X. Shao, Launching focused surface plasmon in circular metallic grating, J. Appl. Phys. 117, 013103 (2015).
Satish Kumar Rajouria, H. K. Malik, V. K. Tripathi and Pawan Kumar, Step density model of laser sustained ion channel and coulomb explosion, Phys. Plasmas 22, 023104 (2015).
C.S. Liu, V. Tripathi, Xi Shao and Pawan Kumar, Electron energy spectrum in circularly polarized laser irradiated overdense plasma, Phys. Plasmas 21, 103109 (2014).
Pawan Kumar, Vishwesh Singh and V. K. Tripathi, Lower hybrid instability driven by mono-energy α-particles with finite pitch angle spread in a plasma, Phys. Plasmas 20, 022504 (2013).
Pawan Kumar and V. K. Tripathi, Fast wave stabilization/destabilization of drift waves in a plasma, Phys. Plasmas 20, 032502 (2013).
Pawan Kumar and V. K. Tripathi, Terahertz (THz) surface plasmon excitation via nonlinear mixing of lasers in a metal coated optical fiber, Optics Letters, Vol. 38, Issue 18, 3475(2013).
Pawan Kumar and V. K. Tripathi, THz surface plasmons excitation by nonlinear mixing of lasers in ultrathin metal film, J. Appl. Phys.- 114, 053101 (2013).
Pawan Kumar and V. K. Tripathi, Surface plasma wave excitation over laser irradiated overdense plasma foil. Appl. Phys. Lett. 100, 151605 (2012).
V. K. Tripathi and Pawan Kumar, Double interface surface plasmons THz excitation by nonlinear mixing of lasers (International Symposium on Laser Precision Microfabrication (LPM)-2012. Pawan Kumar and V.K. Tripathi, Vacuum electron heating by surface plasma wave, Appl. Phys. Lett. 99, 021502 (2011).
Pawan Kumar, Manish Kumar and V.K. Tripathi, Excitation of THz plasmons eigen mode of a parallel plane guiding system by an electron Beam, J. Appl. Phys. 108, 123303 (2010).
Pawan Kumar and V.K. Tripathi, Stimulated Raman scattering of a laser in a degenerate semiconductors, J. Appl. Phys. 107, 103314 (2010).
Pawan Kumar and V.K. Tripathi, Stimulated Raman up-conversion of a helicon band-gap Energy Plasmons in a Semiconductor, J. Appl. Phys. 106, 013312(2009).
Pawan Kumar and V.K. Tripathi, Parametric conversion of a lower hybrid wave into a whistler wave in plasma, Phys. Plasmas 15, 052107(2008).
Pawan Kumar, V.K. Tripathi and C.S. Liu, A Surface plasmon laser, J. Appl. Phys. 104, 033306(2008).
Pawan Kumar and V.K. Tripathi, Stimulated Raman scattering of sub- millimeter waves in bismuth, J. Phys. Chem. Solids 68, 2216 (2007).

Group Members

Dr. Laxman Prasad ( Group Director R&D) RKG Group of Institutions
Dr. Poonam C. Kumar
Dr. Sanjeev Goyal
Dr. Prag Singhal
Ms. Latha Kurian
Dr. Mamta Goel
Dr. Megha Rani
Dr. Manish Mishra
Mr. Sachin Tyagi
Mr. Lokesh Sharma
Mr. Ankit Tripathi
Mr. Pawan Pandey
Dr. Vikas Katoch
Dr. Pawan Kumar (Group Leader)
Contact Us
Dr. Pawan Kumar
Raj Kumar Goel Institute of Technology
5th K.M Stone, Delhi-Meerut Road,
Ghaziabad-201 003
Ph. :+91 8585928960
Email: pk7kufsh@rkgit.edu.in