• Associate Professor, Department of Physics, Deen Dayal Upadhyaya College, University of Delhi (2010-till date)
• Assistant Professor, Department of Physics, Deen Dayal Upadhyaya College, University of Delhi (2004-2010)

• March 2002: Member of Organizing Committee for ''International Conference on Atomic, Molecular and Chemical Physics with Applications'' (CDAMCP), held at University of Delhi, Delhi-11007, India, March 20-22, 2002. (For details of the conference: http://cdamcp.tripod.com)
• March 2006: Member of Organizing and Scientific Committee for ''2nd International Conference on Current Developments in Atomic, Molecular and Optical Physics with applications'', CDAMOP, held at University of Delhi, Delhi-11007, India, March 21-23, 2006. (For details of the conference:http://www.tciconferences.com/html/cdamop.hm)
• Dec. 2011: Member of Organizing Committee for ''International Conference on Atomic, Molecular and Chemical Physics with Applications'' (CDAMCP), held at University of Delhi, Delhi-11007, India, March 20-22, 2002.
• March 2015: Member of Organizing and Scientific Committee for ''4th International Conference on Current Developments in Atomic, Molecular and Optical Physics with applications'', CDAMOP, held at University of Delhi, Delhi-11007, India, March 11-14, 2015. (For details of the conference: http://www.cdamop.com/)
• Treasurer Member: CDAMOP 2011, CDAMOP 2015

3. Member of the Committee of Courses (Hons.) P.G. and Research Studies in the Department of Physics and Astrophysics, University of Delhi (2013-2015).

• Atomic Physics: Atomic structure calculations of complex ions and atoms using Configuration Interaction technique, collision strengths and rate-coefficients calculations for electron impact excitation using R-matrix method having applications in Astrophysics and Plasma Physics. Photoionization of complex ions & atoms.
• Solar Physics: Spectroscopy, diagnostics of the solar atmosphere with space-based data, dynamics of the solar atmosphere using data from SOHO (The Solar and Heliospheric Observatory) and other space and ground-based instruments. Density and temperature diagnostics in the solar atmosphere. 
• Plasma Physics: Study of dense plasma environment on the atomic structure and transition properties of highly charged ions using ion sphere model due to its potential
  applications in inertial connement fusion, laser produced plasmas, X-ray lasers, astrophysical systems, and plasma spectroscopy.

Independent supervision of Doctoral students in the field of atomic Physics

Completed-2   Pursuing-2

Ongoing Project 

DST-SERB project on 'Study of atomic processes for multi-charged ions for plasma diagnostics'.

Research Papers Published in Refereed/Peer Reviewed Journals  

1. Relativistic photoionization cross section calculations and resonance parameters for Mg-like Se XXIII, A. K. Singh, Dishu Dawra, Mayank Dimri, Alok Jha, Rinku Sharma and Man Mohan. (Accepted Manuscript in Radiation Physics and Chemistry).
2. Relativistic atomic structure calculations and study of plasma parameters for Na-like Se XXIV.  Physics of Plasmas, 26 (2019) 062704. A. K. Singh, Dishu Dawra, Mayank Dimri, Alok Jha and Man Mohan.
3. Relativistic R-matrix calculations of photoionization cross sections of Cu XVIII. European Physical Journal D, 73 (2019) 85. A. K. Singh, Mayank Dimri, Dishu Dawra, Alok Jha and Man Mohan.
4. Relativistic R-matrix photoionization cross section calculations of Ne-like Co XVIII with resonance parameters. J. Phys. B: At. Mol. Opt. Phys. 52 (2019) 075002. A. K. Singh, Mayank Dimri, Dishu Dawra, Alok Jha and Man Mohan.
5. Spectroscopic study of EUV and SXR transitions of Cu XIX with plasma parameters", Radiation Physics and Chemistry, 156 (2019) 174-192. A. K. Singh, Mayank Dimri, Dishu Dawra, Alok KS Jha, Nupur Verma and Man Mohan
6. Accurate study on the properties of spectral lines for Na-like Cr13+, Canadian Journal of Physics, https://doi.org/10.1139/cjp-2018-0218 (2018). A. K. Singh, Mayank Dimri, Dishu Dawra, Alok Jha and Man Mohan
7. Collision strength and effective collision strength for Ba XLVII with Man Mohan, Arun Goyal, Indu Khatri, Shougaijm Somorendro Singh, A.K.Singh, Canadian Journal of Physics, page 1-17.
8. Screening constant by unit nuclear charge calculations of resonance energies and widths of the 3pns 1,3P° and 3pnd 1 P° Rydberg series of Mg-like (Z=13-26) ions with Indu Khatri, Arun Goyal, Mamadou Diouldé Ba, Maurice Faye, Malick Sow, Ibrahima Sakho, A.K. Singh, Man Mohan, Ahmadou Wagué, Radiation Physics and Chemistry, (2017), page 208-215.
9. Photoionization of Cl-like Ni XII using relativistic R-matrix close-coupling method with Indu Khatri, Arun Goyal, A.K.Singh, Narendra Singh and Man Mohan Canadian Journal of Physics, pages 1-18.
10. X-ray diffraction patterns and diffracted intensity of Kα spectral lines of He-like ions with Arun Goyal, Indu Khatri, A.K. Singh, Rinku Sharma, Man Mohan, Radiation Physics and Chemistry, (2017), pages 16–21.
11. Collision strength and effective collision strength for Br XXVII with Arun Goyal, Rinku Sharma, Indu Khatri, A.K.Singh, Shougaijm Somorendro Singh, and Man Mohan, Canadian Journal of Physics, pages 1-19.
12. Fully relativistic atomic structure calculations for W XLIV for determination of plasma diagnostic terms with Arun Goyal, Rinku Sharma, A. K. Singh and Man Mohan, Canadian Journal of Physics, pages 1-17.
13. Spectroscopic study of EUV and SXR transitions of Cs XXV with Arun Goyal, Indu Khatri, Narendra Singh, Sunny Aggarwal, A.K.Singh and Rinku Sharma, Canadian Journal of     Physics, pages 1-13.
14. Atomic Structure Calculations and Study of Plasma Parameters of Al-Like Ions with Arun Goyal et al. ATOMS, 2016, Volume 4, Page 22.
15. Multi-Configuration Dirac–Hartree–Fock (MCDHF) Calculations for B-Like Ions with Indu Khatri et al. ATOMS, 2016, Volume 4, Page 13.
16. MCDHF calculations and study of plasma parameters for Li-like ions with Indu Khatri et al. Radiation Phys. and Chem., 2016, Volume 123, Pages 46-54.
17. Photoionization study of Ne-like K9+, Ca10+, Sc11+, Ti12+, V13+, Cr14+, Mn15+, and Fe16+ ions using the screening constant by unit nuclear charge method with Arun Goyal et al. Radiation Phys. and Chem., 2016, Volume 125, Pages 50-55.
18. Atomic structure calculations and study of line intensity ratio for Kr XXIV with Arun Goyal et al. Can. J. Phys., 2016, Volume 94, Pages 712-723.
19. Energy levels, lifetimes and radiative data of Ba XXVI with Arun Goyal et al. ADNDT, 2016, Volume 109-110, Pages 339-351.
20. Atomic structure calculations and study of EUV and SXR spectral lines in Cu-like ions with Arun Goyal et al. Can. J. Phys., 2016, Volume 94, Pages 839-852.
21. Extreme ultraviolet and soft x-ray spectral lines in Rb XXIX with Indu Khatri et al. Chin. Phys. B, 2016, Volume 25, Page 033201.
22. Calculation of energy levels, lifetimes and radiative data for La XXIX to Sm XXXIV with Arun Goyal et al., ADNDT, 2016, Pages 406-456.
23. Energy levels and radiative transition rates for Ba XLVIII with Indu Khatri et al., ADNDT, 2016, Volume 107, Pages 367-405
24. Atomic structure calculations and identification of EUV and SXR spectral lines in Sr XXX with Arun Goyal et al. JQSRT, 2015, Volume 161, Pages 157-170.
25. Extreme ultraviolet and x-ray transition wavelengths in Rb XXIV with Indu Khatri et al. Chinese Physics B, 2015, Volume 24, Page 103202.
26. Atomic structure calculations for Br-like ions with Arun Goyal et al. Canadian Journal of Physics, 2015, Volume 93, Pages 487-495.
27. R-matrix calculations of photoionization cross section of Ne-like tungsten with Indu Khatri et al. Canadian Journal of Physics, 2015, Volume 93, Pages 1221-1226.
28. Collisional Excitation of Fluorine Like Tungsten using Relativistic Dirac Atomic R- matrix Method with Arun Goyal et al. JAMNCP, 2015, Volume 2, Pages 1-14.
29. Atomic Data for He-like Tungsten with Sunny Aggarwal et al. JAMNCP, 2014, Volume 1, Pages 19-30.
30. Multiconfigurational Dirac–Fock energy levels and radiative rates for Ni XXI with Sunny Aggarwal et al. Canadian Journal of Physics, 2014, Volume 92, Pages 1285-1296.
31. Level energies, lifetimes and radiative rates in the 4p44d configurations of bromine- like ions with sunny Aggarwal et al. Physica Scripta, 2013, Volume 88, Pages 035301.
32. Diagnosing transient ionization in dynamic events with J. G. Doyle et al. Astronomy & Astrophysics, Vol. 557, Pages L9 (2013).
33. The diagnostic potential of transition region lines undergoing transient ionization in dynamic events with J. G. Doyle et al. Solar Physics, Vol. 280, Pages 111-124 (2012).
34. Breit–Pauli atomic structure calculations for sulphur-like titanium with Jagjit Singh et al. Canadian Journal of Physics, 2012, Volume 90, Pages 833-847.
35. Photoionization of Al-like Si using the R-matrix method with Jagjit Singh et al. Canadian Journal of Physics, 2011, Volume 89, Pages 1119-1126.
36. Deriving the Coronal Hole Electron Temperature: Electron Density Dependent Ionization/Recombination Considerations with J.G. Doyle et al. Research in Astronomy and Astrophysics (RAA), Vol. 10, No 1 (2010).
37. Level energies, oscillator strengths, and lifetimes for transitions in Ti VI with Man Mohan et al. Atomic Data and Nuclear Data Tables, Volume 93, Issue 1, January 2007, Pages 105-126.
38. Fine-structure energy levels, oscillator strengths and lifetimes of chlorine-like chromium with Man Mohan et al. Pramana Journal of Physics, Volume 65, Number 1 / July 2005.
39. Level energies and oscillator strengths in Ni (XII) with Singh N.; and Mohan M. Canadian Journal of Physics, Volume 81, Number6, 1 June 2003, pp. 861-867(7).

Chapter in Edited Book

Photoionization Cross Section for Complex Multi-Electron Ions, Narosa Publishing House, ISBN No. 978-81-7319-811-3.

Paper Presentation

1. Relativistic R-matrix calculation of photoionization cross-section of Sr XXIX, 4th International Conference on Current Developments in Atomic, Molecular, Optical and Nano Physics with applications held at Department of Physics and Astrophysics, University of Delhi. 
2. Spectroscopic Study of EUV and SXR Transitions of Cu XIX with Plasma Parameters, 13th Asian International Seminar on Atomic and Molecular Physics, IIT Bombay, Mumbai, India. 
3. New atomic Spectral Lines of Cr VIII useful in fusion plasma, National Conference on Engineering Optics & Spectroscopy held at CCS University of Meerut, India.

Invited Talks

1. The Atomic Data and Analysis Structure and its utility to Astrophysicist and Astronomers, University of Strathclyde and the Max-Plank-InstitutfuerPasmaphysik held at Ringberg Castle, near Munich, Bavaria, Germany.
2. The Atomic Data and Analysis Structure and its utility to Astrophysicist and Astronomers, National University of Ireland, Galway.
3. ADAS: What it is and what can it actually do for Astrophysics?, Armagh Observatory, Northern Ireland, UK.
4. Atomic Structure Calculations in Multi-Electron Atoms (Ions) useful in Astrophysics, Armagh Observatory, Northern Ireland, UK.

Member of

• March 2002: Organizing Committee for ''International Conference on Atomic, Molecular and Chemical Physics with Applications'' (CDAMCP), held at University of Delhi, Delhi-11007, India, March 20-22, 2002. (For details of the conference:  http://cdamcp.tripod.com)
• March 2006: Organizing and Scientific Committee for ''2nd International Conference on Current Developments in Atomic, Molecular and Optical Physics with applications'', CDAMOP, held at University of Delhi, Delhi-11007, India, March 21-23, 2006. (For details of the conference: http://www.tciconferences.com/html/cdamop.htm)
• Dec. 2011: Organizing Committee for ''International Conference on Atomic, Molecular and Chemical Physics with Applications'' (CDAMCP), held at University of Delhi, Delhi-11007, India, March 20-22, 2002.
• March 2015: Organizing and Scientific Committee for ''4th International Conference on Current Developments in Atomic, Molecular and Optical Physics with applications'', CDAMOP, held at University of Delhi, Delhi-11007, India, March 11-14, 2015. (For details of the conference: http://www.cdamop.com/)

Treasurer Member: CDAMOP 2011, CDAMOP 2015

Participation in Conferences:

• Oct. 2009: The 14th ADAS Workshop 2009 from organized jointly by the University of Strathclyde and the Max-Plank-Institut fuer Pasmaphysik held at Ringberg Castle, near Munich, Bavaria, Germany.
• Dec. 2004: XVth National Conference on Atomic & Molecular Physics, held at Physical Research Laboratory, Navarangpura, Ahmedabad, India.
• Dec. 2003: Conference on Atomic & Molecular Physics, University Department of Physics, BRA, Bihar University, Muzaffarpur, India.

Member of the Committee of Courses (Hons.) P.G. and Research Studies in the Department of Physics and Astrophysics, University of Delhi (2013-2015).

• Principal Investigator in DST-SERB, Govt. of India sponsored research project entitled 'Study of atomic processes for multi-charged ions for plasma diagnostics' worth Rs. 44,07,480.00/- ongoing (March 16, 2017-March 15, 2020).

• Dec. 1989: Qualified the Joint CSIR-UGC Test for JRF and Eligibility for Lectureship in Physics. 
• July 1993: Senior Research Fellow of UGC, India. 

Member of National/ International Professional Bodies:        

• Indian Society of Atomic and Molecular Physics.
• American Physical Society   
• Royal Astronomical Society of London
• The Global Network for the Atomic and Molecular Physics of Plasmas (GNAMPP).

B.Sc. (Hons) Physics- CBCS Scheme, University of Delhi, Mathematical Physics Notes