Publications

Google scholar profile: https://scholar.google.com/citations?user=fO8mIS8AAAAJ&hl=en&oi=

Publications from work at Purdue (*corresponding author):

4. Siddhant Pandey, Liang Z. Tan, Francis Walz, Varun Makhija, Niranjan Shivaram*, "Ultrafast Field-Resolved Nonlinear Optical Spectroscopy in the Molecular Frame", arXiv (2023); https://doi.org/10.48550/arXiv.2311.18230

3. Francis Walz, Siddhant Pandey, Liang Z. Tan, and Niranjan Shivaram*, "Electric Field Measurement of Femtosecond Time-Resolved Four-Wave Mixing Signals in Molecules", Optics Express 30, 36065 (2022) [Editor's pick]; https://doi.org/10.1364/OE.470925

2. Yimeng Wang*, Siddhant Pandey, Chris H. Greene, and Niranjan Shivaram*, "Attosecond Entangled Photons from Two-Photon Decay of Metastable Atoms: A Source for Attosecond Experiments and Beyond", Physical Review Research 4, L032038 (2022); https://doi.org/10.1103/PhysRevResearch.4.L032038

1. Xingyu Gao, Siddhant Pandey, Mehran Kianinia, Jonghoon Ahn, Peng Ju, Igor Aharonovich, Niranjan Shivaram*, and Tongcang Li*, "Femtosecond Laser Writing of Spin Defects in Hexagonal Boron Nitride", ACS Photonics 8, 994-1000 (2021) https://doi.org/10.1021/acsphotonics.0c01847.

Publications from work started before moving to Purdue (*corresponding author):

32. Peter Walter,* Timur Osipov, Ming-Fu Lin, James Cryan, Taran Driver, Andrei Kamalov, Agostino Marinelli, Joe Robinson, Matthew H. Seaberg, Thomas J. A. Wolf, Jeff Aldrich, Nolan Brown, Elio G. Champenois, Xinxin Cheng, Daniele Cocco, Alan Conder, Ivan Curiel, Adam Egger, James M. Glownia, Philip Heimann, Michael Holmes, Tyler Johnson, Lance Lee, Xiang Li, Stefan Moeller, Daniel S. Morton, May Ling Ng, Kayla Ninh, Jordan T. O’Neal, Razib Obaid, Allen Pai, William Schlotter, Jackson Shepard, Niranjan Shivaram, Peter Stefan, Xiong Van, Anna Li Wang, Hengzi Wang, Jing Yin, Sameen Yunus, David Fritz, Justin James and Jean-Charles Castagna, "The time-resolved atomic, molecular and optical science instrument at the Linac Coherent Light Source", J. Synchrotron Rad 29 (2022); https://doi.org/10.1107/S1600577522004283

31. Siqi Li, Taran Driver, Philipp Rosenberger, Elio G. Champenois, Joseph Duris, Andre Al-Haddad, Vitali Averbukh, Jonathan C. T. Barnard, Nora Berrah, Christoph Bostedt, Philip H. Bucksbaum, Ryan N. Coffee, Louis F. DiMauro, Li Fang, Douglas Garratt, Averell Gatton, Zhaoheng Guo, Gregor Hartmann, Daniel Haxton, Wolfram Helml, Zhirong Huang, Aaron C. LaForge, Andrei Kamalov, Jonas Knurr, Ming-Fu Lin, Alberto A. Lutman, James P. MacArthur, Jon P. Marangos, Megan Nantel, Adi Natan, Razib Obaid, Jordan T. O’Neal, Niranjan H. Shivaram, Aviad Schori, Peter Walter, Anna Li Wang, Thomas J. A. Wolf, Zhen Zhang, Matthias F. Kling, Agostino Marinelli*, James P. Cryan*, "Attosecond coherent electron motion in Auger-Meitner decay", Science 375, 285 (2022).

30. Alexandra J Feinberg, Deepak Verma, Sean MO O’Connell-Lopez, Swetha Erukala, Rico Mayro P Tanyag, Weiwu Pang, Catherine A Saladrigas, Benjamin W Toulson, Mario Borgwardt, Niranjan Shivaram, Ming-Fu Lin, Andre Al Haddad, Wolfgang Jäger, Christoph Bostedt, Peter Walter, Oliver Gessner*, Andrey F Vilesov*, “Aggregation of solutes in bosonic versus fermionic quantum fluids”, Sci. Adv. 7, eabk2247 (2021), https://doi.org/10.1126/sciadv.abk2247

29. Amrut Nadgir, Richard Thurston, Kirk A Larsen, Niranjan Shivaram, Matthew M Brister, Daniel S Slaughter*, "SILIA: software implementation of a multi-channel, multi-frequency lock-in amplifier for spectroscopy and imaging applications", Meas. Sci. Technol. 32, 125501 (2021).

28. D. S. Slaughter,* F. P. Sturm, Roger Y. Bello, K. A. Larsen, N. Shivaram, C. W. McCurdy, R. R. Lucchese, L. Martin, C. W. Hogle, M. M. Murnane, H. C. Kapteyn, P. Ranitovic, and Th. Weber*, "Nonequilibrium dissociative dynamics of D2 in two-color, few-photon excitation and ionization", Phys. Rev. Res. 3, 033191 (2021).

27. Jordan T. O’Neal,* Elio G. Champenois, Solene Oberli, Razib Obaid, Andre Al-Haddad, Jonathan Barnard, Nora Berrah, Ryan Coffee, Joseph Duris, Gediminas Galinis, Douglas Garratt, James M. Glownia, Daniel Haxton, Phay Ho, Siqi Li, Xiang Li, James MacArthur, Jon P Marangos, Adi Natan, Niranjan Shivaram, Daniel S. Slaughter, Peter Walter, Scott Wandel, Linda Young, Christoph Bostedt, Philip H. Bucksbaum, Antonio Picón, Agostino Marinelli, and James P. Cryan*, “Electronic Population Transfer via Impulsive Stimulated X-Ray Raman Scattering with Attosecond Soft-X-Ray Pulses”, Phys. Rev. Lett. 125, 073203 (2020).

26. Deepak Verma, Sean M.O. O'Connell, Alexandra J. Feinberg, Swetha Erukala, Rico Mayro P. Tanyag, Charles Bernando, Weiwu Pang, Catherine A. Saladrigas, Benjamin W. Toulson, Mario Borgwardt, Niranjan Shivaram, Ming-Fu Lin, Andre Al Haddad, Wolfgang Jäger, Christoph Bostedt, Peter Walter, Oliver Gessner, Andrey F. Vilesov*, "Shapes of rotating normal fluid 3 He versus superfluid 4 He droplets in molecular beams", Phys. Rev. B. 102, 014504 (2020).

25. Roger M Pallares, Manuel Sturzbecher-Hoehne, Niranjan H Shivaram, James P Cryan, Anthony D’Aléo, Rebecca J Abergel*, "Two-photon antenna sensitization of curium: evidencing metal-driven effects on absorption cross section in f-element complexes", J. Phys. Chem. Lett. 11, 6063 (2020).

24. Richard Thurston, Matthew Brister, Ali Belkacem, Thorsten Weber, Niranjan Shivaram and Daniel Slaughter*, "Time-Resolved Ultrafast Transient Polarization Spectroscopy to Investigate Nonlinear Processes and Dynamics in Electronically Excited Molecules on the Femtosecond Time Scale", Rev. Sci. Instrum. 91, 053101 (2020).

23. Richard Thurston, Matthew Brister, Liang Tan, Elio Champenois, Said Bakhti, Pavan Muddukrishna, Thorsten Weber, Ali Belkacem, Daniel Slaughter*, and Niranjan Shivaram*, "Ultrafast dynamics of excited electronic states in nitrobenzene measured by ultrafast transient polarization spectroscopy", J. Phys. Chem. A 124, 2573 (2020). https://doi.org/10.1021/acs.jpca.0c01943.

22. Taran Driver, Siqi Li, Elio G. Champenois, Joseph Duris, Daniel Ratner, TJ Lane, Philipp Rosenberger, Andre Al-Haddad, Vitali Averbukh, Toby Barnard, Nora Berrah, Christoph Bostedt, Philip H. Bucksbaum, Ryan Coffee, Louis F. DiMauro, Li Fang, Douglas Garratt, Averell Gatton, Zhaoheng Guo, Gregor Hartmann, Daniel Haxton, Wolfram Helml, Zhirong Huang, Aaron LaForge, Andrei Kamalov, Matthias F. Kling, Jonas Knurr, Ming-Fu Lin, Alberto A. Lutman, James P. MacArthur, Jon P. Marangos, Megan Nantel, Adi Natan, Razib Obaid, Niranjan H. Shivaram, Aviad Schori, Peter Walter, Anna Wang, Thomas J. A. Wolf, Agostino Marinelli*, and James P. Cryan*, “Attosecond Transient Absorption Spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy”, Phys. Chem. Chem. Phys. (2020) doi: 10.1039/c9cp03951a

21. Joseph Duris, Siqi Li, Taran Driver, Elio G. Champenois, James P. MacArthur, Alberto A. Lutman, Zhen Zhang, Philipp Rosenberger, Jeff W. Aldrich, Ryan Coffee, Giacomo Coslovich, Franz-Josef Decker, James M. Glownia, Gregor Hartmann, Wolfram Helml, Andrei Kamalov, Jonas Knurr, Jacek Krzywinski, Ming-Fu Lin, Jon P. Marangos, Megan Nantel, Adi Natan, Jordan O'Neal, Niranjan Shivaram, Peter Walter, Anna Wang, James J. Welch, Thomas J. A. Wolf, Joseph Z. Xu, Matthias F. Kling, Philip H. Bucksbaum, Alexander Zholents, Zhirong Huang, James P. Cryan, and Agostino Marinelli, “Tunable Isolated Attosecond X-ray Pulses with Gigawatt Peak Power from a Free-Electron Laser”, Nat. Photonics 14, 30–36 (2020) doi:10.1038/s41566-019-0549-5.

20. Elio Champenois, Loren Greenman, Niranjan Shivaram, James Cryan, Kirk Larsen, Thomas Rescigno, C. William McCurdy, Ali Belkacem and Daniel Slaughter*, “Ultrafast photodissociation dynamics and nonadiabatic coupling between excited electronic states of methanol probed by time-resolved photoelectron spectroscopy” J.Chem. Phys., 150, 114301 (2019).

19. P. Ranitovic*, F. P. Sturm, X. M. Tong, T. W. Wright, D. Ray, I. Zalubovskaya, N. Shivaram, D. S. Slaughter, A. Belkacem and Th. Weber, “Attosecond Coherent Control of Oxygen Dissociation by XUV-IR Fields using Three-dimensional Momentum Imaging” Phys. Rev. A 98, 013410 (2018).

18. F. P. Sturm*, X. M. Tong, A. Palacios, T. W. Wright, I. Zalyubovskaya, D. Ray, N. Shivaram, F. Martin, A. Belkacem, P. Ranitovic and Th. Weber, “Mapping and Controlling Ultrafast Dynamics of Highly Excited H2 Molecules by Attosecond VUV Radiation”, Phys. Rev. A 95, 012501 (2017).

17. Travis Wright, Elio Champenois, James Cryan, Niranjan Shivaram*, Chan-Shan Yang and Ali Belkacem, “Ultrafast Dynamics of the Lowest Neutral Excited States in Carbon Dioxide ”, Phys. Rev. A 95, 023412 (2017).

16. Niranjan Shivaram*, Elio Champenois, James Cryan, Travis Wright, Taylor Wingard and Ali Belkacem, “Focal overlap gating in velocity map imaging to achieve high signal-to-noise ratio in photoion pump-probe experiments”, Appl. Phys. Lett 109, 254101 (2016).

15. Elio Champenois*, James Cryan, Niranjan Shivaram, Travis Wright and Ali Belkacem, “Onset Times in Time-Resolved Photoelectron Spectra to Measure Ultrafast Non-Adiabatic Dynamics in Small Molecular Systems”, Proceedings of the International Conference on Ultrafast Phenomena (2016).

14. K. A. Larsen*, J. P. Cryan, N. Shivaram, E. G. Champenois, T. W. Wright, D. Ray, O . Kostko, M. Ahmed, A. Belkacem and D. S. Slaughter, “VUV and XUV reflectance of optically coated mirrors for selection of high harmonics”, Opt. Exp. 24, 18209 (2016).

13. F. P. Sturm*, T. W. Wright, D. Ray, I. Zalyubovskaya, N. Shivaram, D. S. Slaughter, P. Ranitovic, A. Belkacem and Th. Weber, “Time resolved 3D momentum imaging of ultrafast dynamics by coherent VUV-XUV radiation”, Rev. Sci. Instr. 87, 063110 (2016).

12. Niranjan Shivaram*, Xiao-Min Tong, Henry Timmers and Arvinder Sandhu, “Attosecond Quantum-Beat Spectroscopy in Helium”, J. Phys. B: Atomic Molecular and Optical Physics 49, 055601 (2016).

11. Elio Champenois*, Niranjan Shivaram, Travis Wright, Chan-Shan Yang, Ali Belkacem and James Cryan, “Involvement of a Low-Lying Rydberg State in the Ultrafast Relaxation Dynamics of Ethylene”, J. Chem. Phys. 144, 014303 (2016).

10. Henry Timmers, Zheng Li, Niranjan Shivaram, Robin Santra, Oriol Vendrell and Arvinder Sandhu*, “Coherent electron hole dynamics near a conical intersection”, Phys. Rev. Lett 113, 113003 (2014).

9. Niranjan Shivaram, Henry Timmers, Xiao-Min Tong and Arvinder Sandhu*, “Photo ionization dynamics in the presence of attosecond pulse trains and strong laser fields”, Chem. Phys. Special Issue on Attosecond Spectroscopy 414, 139 (2013).

8. Henry Timmers, Niranjan Shivaram and Arvinder Sandhu*, “Ultrafast dynamics of neutral superexcited Oxygen: A direct measurement of the competition between autoionization and predissociation”, Phys. Rev. Lett 109, 173001 (2012).

7. Niranjan Shivaram*, Henry Timmers, Xiao-Min Tong and Arvinder Sandhu, “Observing the Real-Time Evolution of Helium Atoms in a Strong Laser Field”, Multiphoton Processes and Attosecond Physics, Proceedings of the 12th International Conference on Multiphoton Processes (ICOMP12) and the 3rd International Conference on Attosecond Physics (ATTO3), Springer Proceedings in Physics (2012).

6. Niranjan Shivaram*, Henry Timmers, Xiao-Min Tong and Arvinder Sandhu, “Measurement of the absolute timing of attosecond XUV bursts with respect to the driving field”, Phys. Rev A 85, 051802(R) (2012).

5. Niranjan Shivaram*, Henry Timmers, Xiao-Min Tong and Arvinder Sandhu*, "Attosecond-resolved evolution of a laser-dressed Helium atom: Interfering excitation paths and quantum phases", Phys. Rev. Lett 108, 193002 (2012).

4. Derek Huang, Henry Timmers, Adam Roberts, Niranjan Shivaram and Arvinder S. Sandhu*, “A low-cost spatial light modulator for use in undergraduate and graduate optics labs”, Am. J. Phys. 80, 211 (2012).

3. Niranjan Shivaram, Henry Timmers, Lei Xu, Adam Roberts, and Arvinder Sandhu*, “Gouy-phase gating of two-color ionization to uncover attosecond structure”, Ultrafast phenomena XVII, Proceedings of the 17th international conference, Snowmass, Colorado, Ed. M Chergui, D. Jonas, E. Riedel, R. Schoenlein, A. Taylor, pp30 (2011).

2. Niranjan Shivaram, Lei Xu, Adam Roberts, and Arvinder Sandhu*, “In-Situ Spatial Mapping of Gouy Phase Slip for High-Detail Attosecond Pump-Probe Measurements” Optics Letters 35, 3312 (2010).

1. Adam Roberts, Niranjan Shivaram, Lei Xu and Arvinder Sandhu*, “Optimization of few-cycle pulse generation: Spatial size, mode quality and focal volume effects in filamentation based pulse compression”, Optics Express 17, 23894 (2009).