IIEST, Shibpur

Indian Institute of Engineering Science and Technology, Shibpur

(Formerly Bengal Engineering and Science University, Shibpur)

Empowering the nation since 1856

Dr. Debasis Ray
Dr. Debasis Ray Dr. Debasis Ray
Lecturer, Physics


  • Ph.D. (Science) (1990) (IACS/JU).
  • M.Sc. (Physics) (1982) (CU).
  • B.Sc. (Physics) (1980) (CU).
National Merit Scholarship awarded by the Govt.of India (1976-1980, 1980-82).
Japanese Govt. Fellowship (1991-1992).
Alexander-von-Humboldt Fellowship (1993-1995).
National Science Council (Taiwan) Fellowship (2000).

 

Contact Addresses

Residence

Phone (office) +91 - 33 - 26684561/62/63 Ext. 450
Mobile +91 -9433092009
email ray.debasis@gmail.com



Research Areas
  • Atomic Physics in hot and dense plasmas & Plasma Spectroscopy.
  • Spectroscopic properties of laser-dressed atoms.
  • Spectroscopy of confined quantum systems –
    • Atomic systems under hydrostatic compression.
    • Impurity states in semiconductor nanostructures.

 

Recent Publications
  • International Journal
    • Atomic diamagnetism within a dense plasma: Physical Review E, vol.63, 027401 (2001). (Author: Debasis Ray)
    • Influence of a dense plasma on the fine-structure levels of a hydrogenic ion: Physical Review E, vol.62, p.4126 (2000). (Author: Debasis Ray)
    • Diamagnetic level-shift of an impurity ion in a magnetized plasma: Journal of Physics B: At.Mol.Opt.Phys., vol.33, p.L21 (2000). (Author: Debasis Ray)
    • Fine-structure quenching and multiplet distortion in a screened Coulomb atom: The European Physical Journal D, vol.10, p.189 (2000). (Authors: Debasis Ray and Tarun Kanti Roy)
    • Radial and angular correlations in doubly-excited states : A time-dependent perturbation approach: International Journal of Quantum Chemistry, vol.76, p.99 (2000). (Authors: A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee)
    • Ionic transitions and oscillator strengths in a Debye Plasma - a case study : The European Physical Journal D, vol.2, p.89 (1998). (Authors: D.Ray and P.K.Mukherjee)
    • Magnetic multipole transitions of a stripped carbon ion in a variety of Debye Plasmas: Journal of Physics B: At.Mol.Opt.Phys., vol.31, p.3479 (1998). (Authors: D.Ray and P.K.Mukherjee)
    • Inter-configuration forbidden transition in Argon isoelectronic ions : The Astrophysical Journal, vol.508, p.959 (1998). (Authors: A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee)
    • Quadrupolar transitions in Chlorine Isoelectronic Ions : Physica Scripta, vol.58, p.315 (1998). (Authors: A.K.Das, T.K.Ghosh, D.Ray, T.K.Mukherjee and P.K.Mukherjee)
    • Effect of crystal potential on dynamic polarizability of negative ions: Theoretica Chimica Acta, vol.93, page 177 (1996). (Authors: D.Ray, P.C.Schmidt and Alarich Weiss)
    • A theoretical modeling of static and dynamic polarizability of O2- in large and complex oxides: Zeitschrift fuer Naturforschung, vol.51a, p.1 (1996). (Authors: D.Ray, H.Anton, P.C.Schmidt and Al.Weiss)
    • Radiative transitions in highly-stripped carbon-like ions: Physica Scripta, vol.51, p.81 (1995). (Authors: D. Ray and P.K.Mukherjee)
    • Oscillator strengths for highly stripped ions of carbon isoelectronic sequence: Canadian Journal of Physics, vol.73, p.554 (1995). (Authors: T.K.Ghosh, D.Ray and P.K.Mukherjee)
    • Static dipole polarizabilities of open-shell negative ions: Theoretica Chimica Acta, vol.82, p.223 (1992). (Authors: A.K.Das, D.Ray and P.K.Mukherjee)
    • Doubly excited 1F0 states of two-electron ions - a time-dependent variation- perturbation calculation: Physics Letters A, vol.169, p.452 (1992). (Authors: D.Ray, M.Sugawara,Y.Fujimura, A.K.Das and P.K.Mukherjee)
    • Doubly excited 1Se , 1De and 1Ge states of He, Li+, Be2+ and B3+ : Journal of physics B : At.Mol.Opt.Phys., vol.24, p.1241 (1991). (Authors: D.Ray and P.K.Mukherjee)
    • Magnetic quadrupole transition rates and Rydberg states of the magnesium isoelectronic sequence: The Astrophysical Journal, vol.346, p.1045 (1989). (Authors: D.Ray, P.K.Mukherjee and H.P.Roy)
    • Frequency-dependent polarisabilities and Rydberg transition of the magnesium isoelectronic sequence: Journal of Physics B: At.Mol.Opt.Phys., vol.22, p.2103 (1989). (Authors: D.Ray and P.K.Mukherjee)
    • Time-dependent perturbation calculation for the doubly excited states in two-electron systems: Physics Letters A, v.136, p.423 (1989). (Authors: D.Ray, B.Kundu, P.K.Mukherjee, K.Ohtsuki and K.Ohno)
    • Rydberg states and spin-forbidden transitions of the beryllium isoelectronic sequence Journal of Physics B: At.Mol.Opt.Phys.,vol 21, p. 3191 (1988). (Authors: D.Ray, B.Kundu and P.K.Mukherjee)
    • Dynamic Multipole polarizabilities and Rydberg states of the beryllium isoelectronic sequence: Physical Review A,vol.37, p.1095 (1988). (Authors: D.Ray, B.Kundu and P.K.Mukherjee)
    • Dynamic Polarizabilities and Rydberg states of the sodium isoelectronic sequence: Physical Review A, vol.34, p.62 (1986). (Authors: B.Kundu, D.Ray and P.K. Mukherjee)
  • International Conferences
    • Dynamic polarizability and Rydberg states of sodium: in Abstracts of the Vth International Congress on Quantum Chemistry (ICQC), Montreal, Canada, August 18-24 (1985), no.36-c, page 232. (Authors: D.Ray, B.Kundu and P.K.Mukherjee)
    • Rydberg states of beryllium and sodium isoelectronic sequence: in the Book of Abstracts of the International Conference on the impact of Supercomputers on Chemistry, University of London, London, England, 13-16 April (1987), page 40. (Authors: D.Ray, B.Kundu and P.K.Mukherjee)
    • Compound atom states of two electron atoms: a time-dependent perturbation approach: in Abstracts of the First Asia-Pacific Conference on Atomic and Molecular Physics, Taipei, Taiwan, Republic of China,November 25-29 (1988), no.B15, page 64. (Authors: D.Ray and P.K.Mukherjee)
    • Time-dependent perturbation calculation for the doubly excited states in two-electron systems: in Abstracts of contributed papers of the XVI th. International Conference on the Physics of Electronic and Atomic Collisions (XVI ICPEAC), New York, 26 July-1 August (1989), page 840. (Authors: B.Kundu, D.Ray and P.K.Mukherjee)
    • A new theoretical approach for the study of double excitations in atoms: in Abstracts of contributed papers of the XVII th. International Conference on the Physics of Electronic and Atomic collisions (XVII ICPEAC), Brisbane 10-16 July (1991). (Authors: D.Ray and P.K.Mukherjee)
  • National Conferences
    • Frequency-dependent atomic response within a high-density plasma: in the Book of Abstracts of PLASMA-2003, The 18th National Symposium on Plasma Science and Technology, Ranchi, India, December 08-11 (2003), page 120-121. (Author: Debasis Ray)
    • “Extra-ordinary” Darwin shift in a hydrogen atom embedded in a weakly-coupled plasma: in the Book of Abstracts of PLASMA 2005, The 20th National Symposium on Plasma Science and Technology, Cochin, India, December 5-7 (2005), page 28. (Authors: Madhab De and Debasis Ray)
    • Spin-orbit energy in a hydrogen atom under hydrostatic compression: in the Book of Abstracts of TC- 2005, Topical Conference on Atomic, Molecular and Optical Physics, Kolkata, India, December 13-15 (2005), page p16. (Authors: Avijit Ghosh and Debasis Ray)
    • Influence of a weakly-coupled plasma on second-order Stark effect in the ground state of a hydrogen atom: in the Book of Abstracts of PLASMA-2006, The 21st National Symposium on Plasma Science and Technology, Jaipur, India, December 19-22 (2006). (Author: Madhab De and Debasis Ray)
    • Vacuum polarization in hydrogenic ion in the presence of a dense strongly-coupled plasma: in the Book of Abstracts of PLASMA 2006, The 21st National Symposium on Plasma Science and Technology, Jaipur, India, December 19-22 (2006). (Authors: Joyee Basu and Debasis Ray)
    • 2P1/2-2P3/2 fine-structure in a sodium atom embedded in a weakly-coupled Debye plasma: : in the Book of Abstracts of PLASMA-2007, The 22nd National Symposium on Plasma Science and Technology, Ahmedabad, India, December (2007) . (Author: Joyee Basu and Debasis Ray)

 

Courses Undertaken

 


Department of Physics, BESU, Shibpur - 7111 03, INDIA