Department of Physics

Indian Institute Of Technology Madras , Chennai
Dr. Aravind, G
HSB 232



TIFR Mumbai


Photoelectron spectroscopy, Experimental studies on reactions involving trapped ions to study the constituents and dynamics of the Inter-Stellar Medium (ISM).


044 - 2257 4863


Atomic & Molecular Physics

Recent Book :

Photodissociation Lifetimes Studies on Gas-Phase Biomolecules: Atomic and Molecular Physics: Introduction to Advanced Topics

G. Aravind

Narosa Publishing House.


 Current Research :

 Recent Publications :

Multiphoton ionization and dissociation of polycyclic aromatic hydrocarbon molecules of astrophysical interest

Roby Chacko, Saroj Barik, Shreyak Banhatti, and G. Aravind

Physical Review A

Volume: (Accepted)

Year: 2022

A Primer on Path Integrals, Aharonov–Bohm Effect and the Geometric Phase

P. C. Deshmukh, Subham Ghosh, Uday Kumar, C. Hareesh, G. Aravind

The Physics Educator

Volume: 4

Year: 2022

Low-lying dipole resonances in FeCN$^-$: A viable formation pathway for FeCN$^-$ in space,

Saroj Barik, Arun kanakatti, Nihar, Saurav, Rajesh kumar Kushawaha, G. Aravind

Astrophysical journal (Accepted)

Year: 2022

Ambient-light-induced intermolecular Coulombic decay in unbound pyridine monomers

Saroj Barik, Saurav Dutta, Nihar Ranjan Behera, Rajesh Kumar Kushawaha , Y. Sajeev and G. Aravind

Nature Chemistry

DOI: 10.1038/s41557-022-01002-2

Year: 2022

Time delay in negative ion photodetachment

Sourav Banerjee, Ganesan Aarthi, Soumyajit Saha, Aravind Gopalan and Pranawa C Deshmukh

Physica Scripta

Year: 2021

Polycyclic Aromatic Hydrocarbons as a source for CH$_n^+$ (n = 4-6) and C3H2 in the ISM

Roby Chacko, Shreyak Banhatti, Saroj Barik, G. Aravind

Astrophysical Journal

Volume: 896 Page: 130 DOI:

Year: 2020

Formation of smaller anions from C$_n$N$^-$(n = 1-3, 5-7) in the circumstellar medium

Roby Chacko, Shreyak Banhatti, M. Nrisimhamurty, J. K. Yadav, A. K. Gupta, G. Aravind

The Astrophysical Journal (Accepted)

Year: 2020

Wigner time delay in photodetachment

Soumyajit Saha, Jobin Jose, Pranawa C. Deshmukh, G. Aravind, Valeriy K. Dolmatov, Anatoli S. Kheifets, and Steven T. Manson

Physical Review A

Volume: 99 Page: 043407 DOI:

Year: 2019

Depletion of FeO in the interstellar medium via its anion resonances

Roby Chacko, Shreyak Banhatti, A. K. Gupta and G. Aravind

The Astrophysical Journal

Volume: (In press)

Year: 2018

Probing anion resonances in FeO−: a species of astrophysical relevance

Roby Chacko, Shreyak Banhatti, A. K. Gupta and G. Aravind

Journal of Physics: Conference Series

Volume: 875 Page: 102019 DOI: 10.1088/1742-6596/875/11/102019

Year: 2017


M. Nrisimhamurty, R. G. Mane, Roby Chacko, A. K. Gupta, P. C. Deshmukh, and G. Aravind

The Astrophysical Journal

Volume: 833 Page: 269 DOI:

Year: 2016

Autoionization resonances in the neon isoelectronic sequence using relativistic multichannel quantum-defect theory

Nrisimhamurty Madugula, G. Aravind, P. C. Deshmukh, S. T. Manson

Physical Review A

Volume: 91 Page: 013404 DOI:

Year: 2015

Photoelectron imaging of interstellar medium anions

Nrisimhamurty Madugula, Roby Chacko, Pranawa C. Deshmukh, and Aravind Gopalan

Journal of Physics: Conference Series

Volume: 635 Page: 112115 DOI: 10.1088/1742-6596/635/11/112115

Year: 2015

Probing electronic states of TaC and observation of a stable excited state of TaC- by anion-photoelectron spectroscopy

G. Aravind, Nrisimhamurty Madugula, Rupali G. Mane, A. K. Gupta, and E. Krishnakumar

Physical Review A

Volume: 92 Page: 042503

Year: 2015

Autoionization resonances in the Argon iso-electronic sequence

Juby George, G.B.Pradhan, Milind Rundhe, Jobin Jose, G. Aravind, P. C. Deshmukh

Canadian Journal of Physics, 2012, 90(6): 547-555

Year: 2012

Photodissociation pathways and lifetimes of protonated peptides and their dimers

G. Aravind, Benedikte Klaerke, Jyoti Rajput, Yoni Toker, Lars Andersen, Anastasia Bochenkova, Rodolphe Antoine, Jerome Lemoine, Amandine Racaud, and Philippe Dugourd

Chem. Phys. 136, 014307 (2012)

Year: 2012

Sub-microsecond regime dissociation lifetime studies on Adenosine 5’ monophosphate ions.

G. Aravind, R. Antoine, B. Klaerke, J. Lemoine, A. Racaud, D. B. Rahbek, J. Rajput, P. Dugourd, and L.H. Andersen

Phys. Chem. Chem. Phys., 2010, 12, 3486-3490

Year: 2010

Spectral tuning of the Photoactive Yellow Protein chromophore by H-bonding

Jyoti Rajput, Dennis Rahbek, G.Aravind, Lars H.Andersen

Biophysical Journal.98, Issue3( 2010 )

Year: 2010

Experimental characterization of the metastable D2¯ ion by photofragment imaging

Lutz Lammich, Lars H. Andersen, G. Aravind , Henrik B. Pedersen

Phys. Rev. A 80, 023413 (2009)

Year: 2009

Gas phase absorption studies of PYP chromophore derivatives

Tomás Rocha-Rinza, Ove Christiansen, Jyoti Rajput, G. Aravind, Dennis Rahbek, Lars H. Andersen, Anastasia V. Bochenkova, Alexander A. Granovsky, Ksenia B. Bravaya, Alexander V. Nemukhin, Kasper Lincke Christiansen , M. B. Nielsen

Phys. Chem. A 113, 9442–9449 (2009)

Year: 2009

Dissociation lifetime studies of doubly deprotonated angiotensin peptides

G. Aravind, L. Lammich , L. H. Andersen,

Phys. Rev. E 79, 011908 (2009)

Year: 2009

Probing channel coupling effects on the photoelectron angular distribution in the photodetachment from Cu¯

G. Aravind, N. Bhargav Ram, A. K. Gupta , E. Krishnakumar.

Phys. Rev. A 79,043411 (2009)

Year: 2009

Investigation of dissociative electron attachment to water using ion momentum imaging

N. B. Ram, V. S. Prabhudesai, P. Rawat, G. Aravind , E. Krishnakumar

J. Phys.: Conf. Ser. 115 , 012006 (2008)

Year: 2008

Absolute cross sections for dissociative electron attachment to water, methane and ammonia

P. Rawat, V. S. Prabhudesai, G. Aravind, N. B. Ram, M. A. Rahman , E. Krishnakumar

J. Phys.: Conf. Ser. 80 , 012018 (2007)

Year: 2007

Probing site selective fragmentation of molecules containing hydroxyl group using Velocity Slice Imaging

Vaibhav S Prabhudesai, N. Bhargava Ram, G. Aravind, P. Rawat , E. Krishnakumar

J. Phys.: Conf. Ser. 80, 012016 (2007)

Year: 2007

Velocity Map Imaging of H- Ions from Dissociative Electron Attachment to H2O

N. Bhargava Ram, V.S. Prabhudesai, G. Aravind, P. Rawat , E. Krishnakumar

J. Phys.: Conf. Ser. 80, 012017 (2007)

Year: 2007

Absolute cross sections for dissociative electron attachment to H2O andD2O

Prashant Rawat, V.S. Prabhudesai, G. Aravind, M. A. Rahman , E. Krishnakumar

J. Phys. B: At. Mol. Opt. Phys. 40 No 24 , 4625-4636 (2007)

Year: 2007

Probing final state interactions in the photodetachment from OH¯

G. Aravind, A.K. Gupta, M. Krishnamurthy , E. Krishnakumar

Phys. Rev. A 76, 042714 (2007)

Year: 2007

Photodetachment studies with the linear time of flight photoelectron spectrometer

G. Aravind, A.K. Gupta, M. Krishnamurthy , E. Krishnakumar,

J. Phys.: Conf. Ser. 80, 012026, (2007)

Year: 2007

Spectral dependence of the asymmetry parameter in the photodetachment from As¯

G. Aravind, A.K. Gupta, M. Krishnamurthy , E. Krishnakumar,

Phys. Rev. A 75, 042714 (2007).

Year: 2007

An experimental study on electronic excited states of O2¯

G. Aravind, A. K. Gupta , M. Krishnamurthy

Chem. Phys. Lett., 424, 252, (2006).

Year: 2006

Probing potential energy curves of C2¯ by translational energy spectroscopy

A.K. Gupta, G. Aravind , M. Krishnamurthy

Phys. Rev. A 69, 035201 (2004).

Year: 2004