International Journals

• Relativistic self focusing and self channeling of gaussian laser beam in plasma. Applied Physics B: Lasers and Optics, Springer, Vol. 101, No. 3, pp. 617-622(2010). Arvinder Singh and Keshav Walia.                                                         
• Comparison of two theories for the relativistic self-focusing of laser beam in plasmas. Contribution to Plasma Physics, Wiley-VCH Verleg, Vol. 51, No. 4, pp. 375-381(2011). Keshav Walia and Arvinder Singh
• Self-focusing of Gaussian laser beam through Collisionless Plasma and its effect on Second harmonic generation. Journal of Fusion Energy,Springer, Vol. 30, No. 6 pp 555-560(2011).Arvinder Singh and Keshav Walia
• Enhanced Raman Scattering of Elliptical Laser beam in Collisional Plasma. Contribution to Plasma Physics,Wiley-VCH Verleg, Vol. 51, No. 9, pp. 788-797(2011).  Arvinder Singh and Keshav Walia                                                                   
• Self-focusing of laser beam in Collisional plasma and its effect on Second Harmonic generation. Laser and Particle Beams, Cambridge University Press (USA), Vol. 29, No. 4, 407-414(2011). Arvinder Singh and Keshav Walia.                                
• Enhanced Raman Scattering of Elliptical Laser beam in Collisionless Plasma. Journal of Fusion Energy, Springer, Vol. 31,No. 9 pp 21-29(2011). Arvinder Singh and Keshav Walia.  
• Self-focusing of Elliptical laser beam in Collisional Plasma and its effect on Stimulated Brillouin Scattering Process. Journal of Fusion Energy, Springer, Vol. 31, No. 6, pp 531-537(2012).  Arvinder Singh and Keshav Walia                                                  
• Stimulated Brillouin Scattering of Elliptical laser beam in Collisionless Plasma. Optics and Laser Technology, Elsevier, Vol. 44, No. 4, pp 781-787(2012).   Arvinder Singh and Keshav Walia                                                                                                 
• Stimulated Brillouin Scattering of Gaussian laser beam in relativistic plasma. Journal of Fusion Energy, Springer, Vol. 32, Issue 3, pp 355-361(2013).  Arvinder Singh and Keshav Walia                                                                                                    
• Self-focusing of Gaussian laser beam in Collisionless plasma and its effect on Stimulated Brillouin Scattering. Optics Communications, Elsevier, Volume 290, No. 1, p. 175-182(2013).  Arvinder Singh and Keshav Walia                                            
• Stimulated Raman Scattering of gaussian laser beam in relativistic plasma. Optik, Elsevier, Vol. 124, Issue 18, pp 3470-3475(2013).               Arvinder Singh and Keshav Walia
• Self-focusing of gaussian laser beam through collisional plasmas: Moment Theory Approach. Journal of Fusion Energy, Springer , 32, Issue 4, pp 422-425(2013).  Arvinder Singh and Keshav Walia                                                                                      
• Self-focusing of gaussian laser beam in Collisionless Plasma and its effect on Stimulated Raman Scattering Process. Optik , Elsevier , Vol. 124, Issue 23, pp. 6074–6080(2013).  Arvinder Singh and Keshav Walia                                                                  
• Effect of Self-focusing on Stimulated Raman Scattering by a Gaussian laser beam in Collisional Plasma : Moment Theory Approach.                Nonlinear Optic. Phys. Mat., World Scientific, No. 3, Vol. 22, pp 1350030(2013). Keshav Walia and Arvinder Singh                                                                                                 
• Self-focusing of gaussian laser beam in thermal Conduction-loss predominant plasmas. Optics and Laser Technology, Elsevier, 125(3), pp 989-992, 2014.  Keshav Walia and Arvinder Singh                                                                                                 
• Effect of self-focusing of gaussian laser beam on second harmonic generation in Relativistic plasma. Journal of Fusion Energy, Springer, Vol. 33, No. 1, pp 83-87(2014). Keshav Walia and Arvinder Singh                                                                         
• Comparison of two theories during self-focusing of gaussian laser beam in thermal Conduction-loss predominant plasmas.Optik, Elsevier, No. 3, Vol. 125, pp 989-992(2014).  Keshav Walia and Arvinder Singh                                                                           
• Enhanced Brillouin scattering of gaussian laser beam in collisional plasma: Moment theory approach. Nonlinear Optic. Phys. Mat., World Scientific, 23, No. 1, 1450011(2014).  Keshav Walia                                                                 
• Nonlinear Interaction of Elliptical laser beam with cold collisional Plasma: Effect of linear absorption. Communications in Theoretical Physics, IOP 65, No. 1, 78-82(2016).  Keshav Walia and Sarabjit Kaur                                                          
• Nonlinear Interaction of High Power Elliptical Laser Beam with Cold Collisionless Plasma. Journal of Fusion Energy, Springer, 35, No. 2, pp 446-451(2016).  Keshav Walia                                                                                                   
• Effect of self-focusing of elliptical laser beam on second harmonic generation in collisionless plasma.Optik, Elsevier, Vol. 127, No. 16, pp 6618-6624(2016).  Keshav Walia
• Laser second harmonic generation in a magnetoplasma assisted by an electrostatic wave. Physics of Plasmas, AIP Publishing 24, No. 4, 043104- 043107(2017). Yachna Tyagi, Deepak Tripathi and Keshav Walia                                                                                                  
• Investigation of Weakly Relativistic Ponderomotive Effects on Self-Focusing During Interaction of High Power Elliptical Laser Beam with Plasma. Communications in Theoretical Physics, IOP 68, No. 2, 245-249(2017). Keshav Walia, Deepak Tripathi and Yachna Tyagi                                                                                                          
• Effect of self-focused laser beam on second harmonic generation in cold collisionless plasma. Nonlinear Optic. Phys. Mat., World Scientific, 49, 21-35(2018). Keshav Walia and Jasmeen Kaur                                       
• Self-focusing of high power laser beam in underdense plasma and its effect on second harmonic generation: Effect of relativistic and ponderomotive nonlinearity. Nonlinear Optics, Quantum Optics, Old City Publishing, 49, 63-77(2018). Keshav Walia and Kritika                                                                         
• Ion Acoustic Wave assisted laser beat wave terahertz generation in a plasma Channel. Physics of Plasmas, AIP Publishing 25, 043118(2018)  Yachna Tyagi, Deepak Tripathi, Keshav Walia, and Deepak Garg
• Nonlinear Interaction of Elliptical Laser Beam with Thermal Quantum Plasma: Relativistic Effects. Nonlinear Optics, Quantum Optics, Old City Publishing, 49, 143-155(2018).  Keshav Walia                                                                        
• Second Harmonic Generation of High Power Elliptical Laser Beam in Underdense Plasma: Relativistic Effects. Nonlinear Optics, Quantum Optics, Old City Publishing, 49, 91-104(2018). Keshav Walia                        
• Effect of Self-focused high power elliptical laser beam on second harmonic generation in unmagnetized plasma. Nonlinear Optics, Quantum Optics, Old City Publishing, 49, 209-222(2018). Keshav Walia                         
• Self-focusing of elliptical laser beam in cold quantum plasma. Optik, Elsevier, Vol. 186, 46-51(2019). Keshav Walia and Deepak Tripathi
• Stimulated Raman scattering of high power beam in thermal quantum plasma. Optik, Elsevier, Vol. 195, 163166(2019).  Keshav Walia, Yachna Tyagi, Deepak Tripathi, A. M. Alshehri, Nafis Ahmad.                                          
• Second harmonic generation of high power laser beam in cold quantum plasma. Optik, Elsevier, Vol. 204, 164150(2020). Keshav Walia, Vinit Kakkar, Deepak Tripathi.                                          
• Nonlinear interaction of high power beam in weakly relativistic and ponderomotive thermal quantum plasma. Optik, Elsevier, Vol. 219, 165040(2020). Keshav Walia                                                                                                 
• Stimulated Brillouin Scattering of high power beam in unmagnetized plasma: Effect of relativistic and ponderomotive nonlinearities. Optik, Elsevier, Vol. 221, 165365(2020). Keshav Walia                                                                   
• Lossy mode resonance-based uniform core tapered fiber optic sensor for sensitivity enhancement.Communications in Theoretical Physics, IOP 72,  095502(2020).  Vikas, Keshav Walia, R.K. Verma                                                                                   
• Self-focusing of high power beam in unmagnetized plasma and its effect on Stimulated Raman scattering process. Optik, Elsevier, Vol. 225, 165592(2021). Keshav Walia                                                                                                   
• Second harmonic generation of laser beam in quantum plasma under collective influence of relativistic-ponderomotive nonlinearities. Optik, Elsevier, 225, 165745(2021). Keshav Walia, R.K. Verma, Arvinder Singh                                                                  
• Self-focusing of laser beam in weakly relativistic-ponderomotive thermal quantum plasma. Optik, Elsevier, Vol. 225, 165889(2021).  Keshav Walia                           
• Impact of self-focused high power beam on second harmonic generation in collisional plasma. Optik, Elsevier, Vol. 226, 165978(2021). Vinit Kakkar, Keshav Walia, Deepak Tripathi                      
• Second Harmonic generation of intense beam in thermal quantum plasmas under joint action of relativistic-ponderomotive force                  Optik, Elsevier, Vol. 244, 167597(2021).  Vinit Kakkar, Keshav Walia, Deepak Tripathi                                                           
• Effect of Pulse Enhancement on beat wave THz generation in a ripple density magnetized plasma. Optik, Elsevier, Vol. 244, 167601(2021). Vinit Kakkar, Keshav Walia, Yachna Tyagi, Deepak Tripathi     
• Second harmonic generation of intense Laguerre-Gaussian beam in relativistic plasma having exponential density. Optik, Elsevier, Vol. 244, 167608(2021). Aman Bhatia, Keshav Walia, Arvinder Singh                                                                                    
• Second harmonic generation of intense Laguerre-Gaussian beam in relativistic plasma having exponential density.                                              Optik, Elsevier, Vol. 244, 167608(2021).  Keshav Walia, Prashant Sharma, Arvinder Singh                                                 
• Influence of self-focused Laguerre-Gaussian laser beam on second harmonic generation in collisionless plasma having density transition. Optik, Elsevier, Vol. 245, 167747(2021). Aman Bhatia, Keshav Walia, Arvinder Singh                                   
• Non-linear interaction of Cosh-Gaussian beam in thermal quantum plasma under combined influence of relativistic-ponderomotive force. Optik, Elsevier, Vol. 247, 167867(2021). Keshav Walia, Arvinder Singh                                       
• Effect of self-focused Cosh-Gaussian beam on second harmonic generation in collisional plasmas. Optik, Elsevier, Vol. 258, 168894(2022).   Keshav Walia, Taranjot Singh, Arvinder Singh
• Second harmonic generation of high power Cosh-Gaussian beam in cold collisionless Plasma. Communications in Theoretical Physics IOP (UK), Vol. 74, 105502(2022).  Keshav Walia, Kulkaran Singh, Deepak Tripathi.                                                                                      
• Laguerre–Gaussian laser beam guiding and its second harmonics in plasma having density ramp. Physics of Plasmas, AIP Publishing 29, 092107(2022).  Aman Bhatia, Keshav Walia, Arvinder Singh                                                                                                   
• Second harmonic generation of zeroth-order Bessel-Gaussian laser beam in collisionless plasma. Optik, Elsevier, Vol. 269, 169867(2022).        Aman Bhatia, Nikita Jangir, Proxy Kad, Keshav Walia, Arvinder Singh
• Influence of self-focused high power Cosh-Gaussian beam on second harmonic generation in cold quantum plasma. Optik, Elsevier, Vol. 270, 170055(2022).  Taranjot Singh, Keshav Walia, Arvinder Singh                                                                                            
• Nonlinear Dynamics of Intense Laser Beam in Unmagnetized Plasma and its Influence on Second Harmonic Generation. Journal of Fusion Energy, Springer, Vol. 41, 21(2022).  Keshav Walia                                                                      
• Study of two cross focused Bessel–Gaussian laser beams on electron acceleration in relativistic regime. Optik, Elsevier, Vol. 271, 170117(2022).   Proxy Kad, Rishi Chaudhary, Aman Bhatia, Keshav Walia, Arvinder Singh
• Second-harmonic generation of intense Laguerre Gaussian Beam in collisional plasma: Effect of nonlinear absorption. Chinese Journal o Physics, Elsevier, Vol. 81, 206(2023). Aman Bhatia, Keshav Walia, Arvinder Singh                                                               
• Self-focusing of q-Gaussian beam in unmagnetized plasma and its impact on Second harmonic generation. Accepted in Optik, Elsevier. https://doi.org/10.1016/j.ijleo.2023.170681 .  Keshav Walia                                                    
• Impact of Self-Focused Intense Beam on Second Harmonic Generation in Relativistic Plasma. Accepted in Optik, Elsevier. Keshav Walia, Sunidhi, Arvinder Singh