PUBLICATIONS

1. Rajeev Mishra, Ashish K. Gupta, Dynamical Symmetry of Floquet State of CNT during HHG beyond dipole approximation, (in preparation).
   
   
2. Rajeev Mishra, Ashish K. Gupta, Optimization of HHG with adaptive control using an evolutionary search process, (in preparation).
   
   
3. Dhruba J. Kalita and Ashish K. Gupta, Application of smooth exterior scaling method to calculate the high-harmonic-generation spectra, (submitted).
   
   
4. Dhruba J. Kalita and Ashish K. Gupta, Application of parametric equations of motion to study the resonance coalescence in H+ , (submitted).
   
   
5. Rajeev Mishra, Dhruba J. Kalita and Ashish K. Gupta, Breakdown of Dipole Approximation and its effect on High Harmonic Generation, Euro. Phys. J. D, 66, 169 (2012).
   
   
6. Nimrod Moiseyev and Ashish Kumar Gupta, Distinguishing between aligned and randomly oriented polar molecules by using a combination of strong laser field with a weak static field, Molecular Physics, 2012, 1.8, iFirst.
   
   
7. Dhruba J. Kalita and Ashish K. Gupta, Study of laser-induced multiphoton dissociation of H+ as a function of the field frequency using parametric equations of motion, Phys. Rev. A, 85, 033413 (2012).
   
   
8. Dhruba J Kalita, Akshay Rao, Ishir Rajvanshi, Ashish K Gupta, Application of parametric equations of motion to study the laser induced multiphoton dissociation of H+ in intense laser field., J. Chem. Phys., 134 , 224309 (2011).
   
   
9. D. J. Kalita, and A. K. Gupta, Use of Modified Smooth Exterior Scaling Method as an Absorbing Potential ans its Application, J. Chem. Phys., 134, 094301 (2011)
   
   
10. D. J. Kalita, and A. K. Gupta, Application of smooth exterior scaling method to study the time dependent dynamics of H+ in intense laser field, J. Chem. Phys., 133, 134303 (2010).
    
    
11. A. K. Gupta, and N. Moiseyev, Trapping of molecules by highly rotational excitations, Chemical Physics, 338, 113, (2007).
    
    
12. A. Fleischer, A.K. Gupta, and N. Moiseyev, Dynamical symmetry analysis of ionization and harmonic generation of atoms in bichromatic laser pulses, Int. J. Quantum Chem., 103, 824 (2005).
    
    
13. I. Baldea, A. K. Gupta, N. Moiseyev and L. S. Cederbaum, High Harmonic Generation by Quantum-Dot Nanorings, Phys. Rev. B., V69, 245311, (2004).
    
    
14. A. K. Gupta, O. E. Alon and N. Moiseyev, Generation and control of high-order harmonics by the interaction of microwave/infrared laser with a thin graphite layer, Phys. Rev. B, V68, 205101, (2003).
    
    
15. A. K. Gupta and D. Neuhauser, Rabi-Oscillations Induced Multiharmonic Emission in a Maxwell-Schroedinger Study of a Dense Sample of Molecules, International J. Quant. Chem. V81, 260 (2001),
    
    
16. N. Rom, E. Fattal, A. K. Gupta, E. A. Carter and D. Neuhauser, Shifted-contour auxiliary-field Monte Carlo for molecular electronic structure, J. Chem. Phys., V109, 8241 (1998).
    
    
17. A. K. Gupta and D. Neuhauser, Control of harmonic generation by initial-state preparation, Chem. Phys. Letts, V290, 543 (1998).
    
    
18. A. K. Gupta, P. Gross, D. B. Bairagi and M. K. Mishra, Laser Control of Population Dynamics with Bichromatic Fields - Direct Search Through Field Amplitude, Frequency, and Phase space, Chem. Phys. Letts, V257, 658 (1996).
    
    
19. P. gross, A. K. Gupta, D. B. Bairagi and M. K. Mishra, Initial State Laser Control of Curve-Crossing Reactions Using the Rayleigh-Ritz Variational Procedure, J. Chem. Phys., V104, 7045 (1996).
    
    
20. D. B. Bairagi, A. K. Gupta, P Gross and M. K. Mishra, Investigation of Photodynamics in Intense Laser Fields Using the Fourier Grid Floquet Propagator with Applications to and LiH, Theochem-Journal of Molecular Structure, v361, 69 (1996).
    
    
21. P. Gross, A. Gupta, D. B. Bairagi and M. K. Mishra, An Efficient Method for Determining Quantum Dynamics in Strong Fields by Integrating through Amplitude and Frequency Parameter Space, Chem. Phys. Letts, V236, 8 (1995).
    
    

PRESENTATIONS

1. Poster presented at Gordon Research Conference on Multiphoton Processes, June 3-8, 2012, Mount Holyoke College, South Hadley, MA, USA
   
   
2. Invited speaker at National Symposium on Theoretical & Computational Chemistry, March 16-17, 2012,NEHU, Shillong
   
   
3. Invited speaker at International symposium on Advances in Chemical Sciences 2012. January 30, 2012, IIT Guwahati, India
   Dhruba Jyoti Kalita and Ashish K. Gupta, “Application of Smooth Exterior Scaling Method and Parametric Equations of Motion to study the Dynamics of H+ in Intense Laser Field,” Proceedings of Symposium, Pg 17, January 30, 2012.
   
   
4. Poster presented at International symposium on Advances in Chemical Sciences-2012, January 30, 2012, IIT Guwahati, India
   Dhruba Jyoti Kalita and Ashish K. Gupta, Application of Parametric Equations of Motion to study the Resonance Coaleescence in H+ ” Proceedings of Symposium, Pg 39, January 30, 2012.
   
   
5. Poster presented at Gordon Research Conference on Quantum Control of Light & Matter, July 31 - August 5, 2011, Mount Holyoke College, South Hadley, MA, USA
   
   
6. Poster presented at Gordon Research Conference on Multiphoton Processes, June 6-11,2010, Tilton School, NH, USA
   
   
7. Invited speaker at Symposium on Theoretical Chemistry, Bhabha Atomic Research Center, Trombay, Mumbai, India.
   Ashish K Gupta, "High Harmonic Generation by Quantum-Dot Nanorings", Proceedings of Symposium on Theoretical Chemistry, IT-57, December 9-12,2004.
8. Lecture at UGC Refresher Course on Theoretical and Computational Chemistry, Birla Institute of Technology and Science, Pilani, Raj., India. December 8-28, 2003.[ Control of Molecular Dynamics using Intense Laser: Pump and Dump Scheme (Tannor-Rice Scheme).
9. Lecture at UGC Refresher Course on Theoretical and Computational Chemistry, Birla Institute of Technology and Science, Pilani, Raj., India. December 8-28, 2003. Control of Molecular Dynamics using Intense Laser: Stimulated Raman Scattering involving Adiabatic Passage (StiRAP) Control.
10. Lecture at UGC Refresher Course on Theoretical and Computational Chemistry, Birla Institute of Technology and Science, Pilani, Raj., India. December 8-28, 2003. Control of Molecular Dynamics using Intense Laser: The Fourier Grid representation of Wavefunction and Time Propagation Schemes.
11. Invited speaker at Minerva Meeting of Semi-classical, Quantum Chaos, And Mesoscopics, Max-Planck-Institute For Physik Komplexer Systeme, Dresden, Germany, January 29 - February 2, 2003.
12. Poster presented at Israel Theochem 2002, Jerusalem, Israel.
13. Departmental Seminar at Indian Institute of Technology, Bombay, India on 3rd December 2001. Generation of High energy Photons due to the Interaction of IR to UV lasers with Benzene, Graphite and Carbon Nanotubes.
14. Departmental Seminar at Indian Institute of Technology, Kanpur, India on 22nd November 2001. Generation of High energy Photons due to the Interaction of IR to UV lasers with Benzene, Graphite and Carbon Nanotubes.
15. Poster presented at Seminar of the Minerva Center for Nonlinear Physics of Complex Systems, Mizpe Hayamim, Israel.
16. Poster presented at TSRP-2000, Bhabha Atomic Research Center, Trombay, Mumbai, India.
    A. K. Gupta and D. Neuhauser, A Solution of the Combined Maxwell-Schroedinger Equation for Multiharmonic Emission from a Dense Sample of Molecules, Proceedings of Trombay Symposium on Radiation and Photochemistry, V2, 259 (2000).
17. Poster presented at Gordon Research Conference on Laser Interactions with Materials, Proctor Academy, New Hampshire, USA.
18. Poster presented at Gordon Research Conference on Quantum Control of Atomic and Molecular Motion, Plymouth State College, Plymouth, New Hampshire, USA.