Quadrupole Effects in the Photoionisation of Sodium 3s in the Vicinity of the Dipole Cooper Minimum

Autor: Nishita M. Hosea, Jobin Jose, Hari R. Varma, Pranawa C. Deshmukh, Steven T. Manson

Publikováno v: Atoms, Vol 11, Iss 10, p 125 (2023)

A procedure to obtain relativistic expressions for photoionisation angular distribution parameters using the helicity formulation is discussed for open-shell atoms. Electric dipole and quadrupole transition matrix elements were considered in the pres

Externí odkaz: https://doaj.org/article/05cabfb0958943808c5f49c320af3c84

The electronic properties of graphene nanoribbons and the offset logarithm function

Autor: Sree Ram Valluri, Ken Roberts, L. Prabhat Reddy, Najeh Jisrawi, Sibibalan Jeevanandam, Aude Maignan, Pranawa C. Deshmukh

Publikováno v: Materials Today: Proceedings
Materials Today: Proceedings, Elsevier, 2021, ⟨10.1016/j.matpr.2021.05.338⟩
Materials Today: Proceedings, 2022, 54 (1), pp.7-13. ⟨10.1016/j.matpr.2021.05.338⟩

International audience; Graphene Nanoribbons (GN), being an important class of next-generation carbon materials, are of immense interest and find innumerable applications in diverse fields. A variation of the generalized Lambert W function, called th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bd3b20df8975fde488f291033b463be
https://doi.org/10.1016/j.matpr.2021.05.338

Eisenbud–Wigner–Smith time delay in atom–laser interactions

Autor: Ankur Mandal, S. Banerjee, Steven T. Manson, Pranawa C. Deshmukh

Publikováno v: The European Physical Journal Special Topics. 230:4151-4164

Recent development of ultrafast measurement techniques on the sub-femtosecond time scale has enabled us to see the atom–laser interaction in real time. One of the important observables to study the temporally resolved dynamics is the various time d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f4f762b2733645bf8dcaf6d2a1a6ba2
https://doi.org/10.1140/epjs/s11734-021-00225-7

Time delay in atomic and molecular collisions and photoionisation/photodetachment

Autor: Pranawa C. Deshmukh, S. Banerjee

Publikováno v: International Reviews in Physical Chemistry. 40:127-153

It is remarkable that time delay is an experimentally measurable quantity, but time itself is not. Time delay in quantum collisions and in photoionisation/photodetachment of atomic and molecular sy...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f78189c7caf6ccb644db43878b315185
https://doi.org/10.1080/0144235x.2021.1838805

Nonstatistical behavior of the photoionization of spin–orbit doublets

Autor: Maria Luiza M. Rocco, Gildas Goldsztejn, Renaud Guillemin, Marc Simon, Maria Novella Piancastelli, Pranawa C. Deshmukh, Oksana Travnikova, C. Rasadi Munasinghe, David Keating, I. Ismail, Steven T. Manson, Tatiana Marchenko, Jessica B. Martins, Dimitris Koulentianos, Ralph Püttner, Loic Journel, Denis Céolin

Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics
Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2021, 54 (8), pp.085001. ⟨10.1088/1361-6455/abef51⟩

The photoionization branching ratios of spin–orbit doublets are studied both experimentally and theoretically at energies several keV above threshold. The results show significant relativistic effects for Ar 2p in the autoionizing region below the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::306d027aae32949013f114807d7a1dcc
https://hal.archives-ouvertes.fr/hal-03431690/document