Research activities of the Department of Physics

The Department of Science and Technology (DST) through the scheme “Fund for Improvement of Science and Technology Infrastructure in Higher Educational Institutions” (FIST) has sanctioned  one crore to the Physics and Chemistry Departments for development of research and infrastructural facilities.

Centralized Instrumentation Facilities: UV-VIS Spectrometer, TG-DTA, Flurimeter.

dsc    equip    fluri

Facilities at Research Department of Physics:  FT-IR Spectrophotometer, Work station computer, Solution Growth Apparatus, SR method for growing large size crystals, Magnetic stirrer with hot plate, Constant Deviation Spectrometer, Michelson Interferometer, CROs, Function Generators,Strong Electromagnet, Hall effect apparatus, Non Vibrating Honey Comb Optical Table , He-Ne Laser, Semiconductor Laser, Optical Communications kit, Low temperature furnace, Impedance analyzer, Gaussian Software, Centre for Nonlinear studies - A separate space for Theoretical Physics research.

 

 


 

Major Research projects

Name of the Investigator Title of the project and duration Amount sanctioned Funding Agency
 

Dr. D. Sajan

 Design, Structural-Property Relations for the Nonlinear   Optical Response, Growth and Vibrational Spectral Investigations of some Aniline Derivatives (2014-2017) 24,96,000/- DST-Fast Track Young Scientist Project
 

Dr. D. Sajan

 Screening, Selection,  Growth and Vibrational Spectral Investigations of Non-   Linear Optical materials (2013-2016) 21,45,297/- CSIR
Dr. D. Sajan        Growth, Optical studies and Vibrational Spectral Investigation of certain novel semi-organic NLO crystals for Laser applications(2015-2018)  13,48,160/- KSCSTE

 


 

Minor Research Projects

Name of the Investigator Title of the project and duration Amount sanctioned Funding Agency
 

Chandy N. George

 

 Development and Characterization of Nanocrystalline Barium Titanate (BaTiO3) Ceramic Reinforced Polymer Composite (2008-2010) 50,000/- UGC
George Mathew

 

 Development of New Complex Perovskite Ceramic Oxides-Sr2LnTiO6 (Ln-Lanthanide) through Solid-state and Nanoparticle route for Microwave Resonator Applications (2008-2010) 50,000/- UGC
Dr. D. Sajan Growth and Vibrational Spectroscopic Investigations of Efficient π- electron conjugated push pull Nonlinear Optical Chromophore (2011-2013) 18 Months 1,44,400/- UGC
Lynnette Joseph

 

 Synthesis and Vibrational Spectroscopic investigations of   Biologically Active molecules- Chalcone   derivatives                (2011-2013)  

55,000/-

 UGC
Jerin Susan John

 

 Vibrational Spectroscopic Investigations And Third-Order Nonlinear Optical Studies of Certain Organic Molecules (2012-2014)  80,000/- UGC
Merin George Growth, Structural, Vibrational Spectral Studies on Aniline Derivatives for NLO Applications

(2013-2015)

  1,65,000/- UGC

 

 

Publications in SCI journals

  1. Physico-chemical studies of the experimental and theoretical properties of organic nonlinear optical material 4-chloro-4'methoxy benzylideneanilineOriginal Research Article
    Journal of Molecular Structure, Volume 1128, 15 January 2017, Pages 754-768
    Merin George, Nimmy L. John, M. Saravana Kumar, A. Subashini, D. Sajan

  2. Investigations on spectroscopic, dielectric and optical studies in 3-hydroxypyridinium 4-nitrobenzoate crystalsOriginal Research Article
    Journal of Molecular Structure, Volume 1137, 5 June 2017, Pages 142-149
    J. Balaji, S. Prabu, D. Sajan, P. Srinivasan

  3. Qualitative and quantitative approach towards the molecular understanding of structural, vibrational and optical features of urea ninhydrin monohydrateOriginal Research Article
    Materials Chemistry and Physics, Volume 191, 15 April 2017, Pages 20-34
    V. Sasikala, D. Sajan, K. Chaitanya, Tom Sundius, T. Uma Devi

  4. Spectroscopic and DFT-based computational studies on the molecular electronic structural characteristics and the third-order nonlinear property of an organic NLO crystal: (E)-N′-(4-chlorobenzylidene)-4-methylbenzenesulfonohydrazideOriginal Research Article
    Chemical Physics Letters, Volume 674, 16 April 2017, Pages 11-27
    V. Sasikala, D. Sajan, Lynnette Joseph, J. Balaji, S. Prabu, P. Srinivasan
  5. Vibrational Spectral Analysis, Electronic absorption and Non-linear Optical Behavior of (E)-1-(2,4,6-Trimethoxyphenyl)pent-1-en-3-one
    Sajan; Alen S; Job Sabu K; Tom Sundius; Chaitanya K; Frank  Blockhuys; Bena Jothy V DIO VIBSPEC-D-14-00172(Article in Press, 2015)
  6. Electronic structure, vibrational spectral and intervening orbital interactions studies of NLO material: Guanidinium 4-nitrobenzoate  , V.Sasikala, D. Sajan, K. Job Sabu, T. Arumanayagam, P. Murugakoothan, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Volume 139, 15 March 2015, Pages 555-572
  1. Twisted intramolecular charge transfer and its contribution to the NLO activity of Diglycine Picrate: A vibrational spectroscopic study, Alen, D. Sajan, T. Umadevi, Ivan Němec, M.S. Baburaj, V. Bena Jothy, B.H. Selin Joy, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Volume 135, 25 January 2015, Pages 720-731
  1. Growth, molecular structure, NBO analysis and vibrational spectral analysis of l-tartaric acid single crystal, Sasikala, D. Sajan, N. Vijayan, K. Chaitanya, M.S. Babu Raj, B.H. Selin Joy, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Volume 123, 5 April 2014, Pages 127-141
  1. Synthesis, crystal growth, thermal, electronic and vibrational spectral studies of 1-(4-Bromophenyl)-3-(3,4-dimethoxy-phenyl)prop-2-en-1-one: A density functional theory study, Lynnette  Joseph, B.S. Arunsasi, D. Sajan, V. Shettigar, Journal of Molecular Structure, Volume 1076, 5 November 2014, Pages 687-697
  1. Molecular conformational analysis, vibrational spectra and normal coordinate analysis of trans-1,2-bis(3,5-dimethoxy phenyl)-ethene based on density functional theory calculations, Lynnette Joseph, D. Sajan, K. Chaitanya, Jayakumary Isac, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Volume 122, 25 March 2014, Pages 375–386
  1. Molecular structure, NBO analysis, electronic absorption and vibrational spectral analysis of 2-Hydroxy-4-Methoxybenzophenone: Reassignment of fundamental modes
    Lynnette Joseph, D. Sajan, K. Chaitanya, T. Suthan, N.P. Rajesh, Jayakumary Isac Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Volume 120, 24 February 2014, Pages 216-227
  2. "Growth, molecular structure, NBO analysis and vibrational spectral analysis of l-tartaric       acid single crystal" , Sasikala, D. Sajan, N. Vijayan, K. Chaitanya, M.S. Babu Raj, B.H. Selin Joy, Spectrochim Acta.Part A., 123, 127-141 (2014)
  1. Three-photon absorption and vibrational spectroscopic study of 2-methylamino-5-chlorobenzophenone, D.Sajan, K. Chaitanya, K. Safakath, Reji Philip, T. Suthan, N.P. Rajesh, Spectrochim Acta.Part A .106 (2013) 253-261.
  1. Growth, electronic absorption and vibrational spectral analysis of semiorganic nonlinear optical material potassium acid phthalate: A scaled quantum mechanical force field study, Alen, D. Sajan, N. Vijayan, K. Chaitanya, Ivan Němec, V. Bena Jothy, Journal of Molecular Structure, 1040 ( 2013) 155-163.
  1. Ultrafast optical nonlinearity, electronic absorption, vibrational spectra and solvent effect studies of ninhydrin,  Sajan, T. Uma Devi, K. Safakath, Reji Philip, Ivan Němec, M. Karabacak,  Spectrochim Acta.Part A .109 (2013) 331-343.
  1. Multi-photon absorption effect and intra-molecular charge transfer of donor-π-acceptor chromophore ethyl p-amino benzoate, Sajan, N. Vijayan, K. Safakath, Reji Philip, M. Karabacak, Spectrochim Acta.Part A .108 (2013) 197-210.
  1. Structural conformations and density functional study on the intramolecular charge transfer based on vibrational spectra of 2,4-dihydroxy-N′-(4-methoxybenzylidene)benzohydrazide, D.M. Suresh, D. Sajan, Yun-Peng Diao, Ivan Němec, I. Hubert Joe, V. Bena Jothy, Spectrochim Acta.Part A .110 (2013) 157-168.
  1. Crystal growth, spectral, optical and thermal properties of semiorganic nonlinear optical material: Picolinic acid hydrochloride, Gowri, T. Uma Devi, D. Sajan, C. Surendra Dilip, A. Chandramohan, N. Lawrence,Spectrochim Acta.Part A .110 (2013) 28-35.
  1. Density functional theory study, FT-IR and FT-Raman spectra and SQM force field calculation for vibrational analysis of 1, 3-Bis (hydroxymethyl) benzimidazolin-2-one, Lynnette Joseph, D. Sajan, K. Chaitanya, H.C. Devarajegowda, Jayakumary IsacSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Volume 114, October 2013, Pages 432-440
  2. Synthesis, crystal growth, thermal studies and scaled quantum chemical studies of structural and vibrational spectra of the highly efficient organic NLO crystal: 1-(4-Aminophenyl)-3-(3,4-dimethoxyphenyl)-prop-2-en-1-one, Lynnette Joseph, D. Sajan,,  Venkataraya Shettigar, K. Chaitanya, Neeraj Misra, Tom Sundius, I. Němec, Materials Chemistry and Physics, Volume 141, Issue 1, 15 August 2013, Pages 248–262
  1. Alen, D. Sajan, K. Job Sabu, K. Udaya Lakshmi, V. Veeraiah, K. Chaitanya,V. Bena Jothy "Studies on crystal growth, vibrational, dielectric,electronic, mechanical and           thermal properties of new organic nonlinear optical crystal: 3-nitrocinnamic acid"    CrystEngComm, 15, 2013, 9176-9188 (2013)
  2. Vibrational spectra, structural conformations, scaled quantum chemical calculations and NBO analysis of 3-acetyl-7-methoxycoumarin, Lynnette Joseph, D. Sajan, R. Reshmy, B.S. Arun Sasi, Y. Erdogdu, K. Kurien Thomas, Spectrochim Acta.Part A .99 (2012) 234-247.
  1. Spectral, thermal and optical properties of adenosinium picrate: A nonlinear optical single crystal, Gowri, T. Uma Devi, D. Sajan, S.R. Bheeter, N. Lawrence, Spectrochim Acta.Part A .89 (2012) 119-122.
  1. Vibrational spectral investigation and Natural Bond Orbital analysis of anti-rheumatoid drug Ethyl 4-nitrophenylacetate – DFT approach, D.M. Suresh, M. Amalanathan, S. Sebastian, D. Sajan, I. Hubert Joe, V. Bena Jothy, Spectrochim Acta.Part A .98 (2012) 413-422.
  1. Synthesis, growth, spectral and thermal properties of a new organic crystal: 2-Carboxypyridin-1-ium trichloroacetate, Gowri, K. Anitha, A. Suresh, T. Uma Devi, S. Selvanayagam, D. Sajan, A. Chandramohan, N. Lawrence, Spectrochim Acta.Part A .95 (2012) 73-79.
  1. A rapid and versatile method for solvothermal synthesis of Sb2O3 nanocrystals under mild conditions,  Kaviyarasu, D. Sajan, Prem Anand Devarajan, Appl Nanosci DOI 10.1007/s13204-012-0156-y(2012)
  1. A facile hydrothermal route to synthesize novel PbI2nanorods,Kaviyarasu, D. Sajan, M.S. Selvakumar, S. Augustine Thomas, D. Prem Anand, Journal of Physics and Chemistry of Solids, 73, (2012)1396-1400
  1. Synthesis, growth and vibrational spectroscopic study of a novel coumarinoylthiazole, Reshmy, D. Sajan, K. Kurien Thomas, A. Sulekha, K.N. Rajasekharan, S. Selvanayagam, Ö. Alver,Spectrochim Acta.Part A .97 (2012) 1125-1132.
  1. Vibrational (FT-IR and FT-Raman) spectral investigations of 7-aminoflavone with density functional theoretical simulations, Erdogdu, Ö. Dereli, D. Sajan, L. Joseph, O. Unsalan & M. T. Gulluoglu, Molecular Simulation 38 (2012) 315-325.
  1. Synthesis, growth and characterization of 2-carboxypyridinium hydrogen (2R,3R)-tartrate monohydrate: A new organic nonlinear optical crystal, Gowri, T. Uma Devi, D. Sajan, A. Chandramohan, N. Lawrence, Optik - International Journal for Light and Electron Optics, (2012)
  1. Intramolecular charge transfer and Z-scan studies of a semi organic nonlinear optical material sodium acid phthalate hemihydrate: A vibrational spectroscopic study, Sajan, N.Vijayan, K.Safakath, R.Philip, I.Hubert.Joe, Journal of Physical Chemistry A 115 (2011) 8216-8226.
  1. Natural bond orbital analysis, electronic structure, non-linear properties and vibrational spectral analysis of l-histidinium bromide monohydrate: A density functional theory, Sajan, Lynnette Joseph, N. Vijayan, M. Karabacak, Spectrochim Acta.Part A .81 (2011) 85-98.
  1. Electronic absorption, vibrational spectra and nonlinear optical properties of N-(2 chlorophenyl)-1-propanamide, Sajan, N. Vijayan, Solid State Sciences 13 (2011) 175-184.
  1. Intramolecular charge delocalization and nonlinear optical properties of push–pull chromophore 1-(4-N,N-dimethylaminopyridinium) acetic acid bromide monohydrate from vibrational spectra, Sajan, K. Udaya Lakshmi, I. Hubert Joe, Spectrochimica Acta Part A 78 (2011) 264–272.
  1. Molecular structure and vibrational spectra of 2,6-bis(benzylidene)cyclohexanone: A density functional theoretical study, Sajan, K. Udaya Lakshmi, Y. Erdogdu, I. Hubert Joe, Spectrochimica Acta    Part A 78 (2011) 113–123.
  1. Surface-enhanced Raman scattering and DFT theoretical studies on the adsorption behavior of plumbagin on silver nanoparticles, Sajan, D., Kuruvilla, T., Laladhas, K.P.,Joe, I.H., Indian Journal of Physics 85 (2011) 477-484
  1. Growth and characterization of organic material 2-hydroxypyridine single crystal by modified vertical Bridgman technique, T.Suthan, N.P. Rajesh, C.K.Mahadevan,  D. Sajan, G. Bhagavannarayana, Materials Chemistry and Physics130 (2011)  915-920
  1. Spectral, thermal and optical properties of l-tryptophanium picrate: A nonlinear optical single crystal, S.Gowri, T. Uma Devi, D. Sajan, S.R.Bheeter, N. Lawrence, Spectrochimica Acta    Part A 81 (2011) 257-260.
  1. DFT-based molecular modeling, NBO analysis and vibrational spectroscopic study of 3-(bromoacetyl)coumarin, D.Sajan, Y.Erdogdu, R. Reshmy,  Ö. Dereli, K.Kurien Thomas, Hubert Joe, Spectrochimica Acta    Part A 78 (2011) 113–123.
  1. Vibrational contributions to the second-order nonlinear optical properties of π-conjugated structure acetoacetanilide, Ravikumar, I. Hubert Joe, D. Sajan, Chemical Physics, 369, (2010) 1-7.
  1. Vibrational spectra and first-order molecular hyperpolarizabilities of p-hydroxybenzaldehyde dimer, Sajan, Y. Erdogdu, Thomas Kuruvilla, I. Hubert Joe, Journal of Molecular Structure,  983, (2010,)  12-21.
  1. Density functional study on the structural conformations and intramolecular charge transfer from the vibrational spectra of 1-(4-aminophenyl) 3-(3, 4-dimethoxyphenyl)-2-propen-1-one, D.Sajan, Lynnette Joseph, I. Hubert Joe, AIP Conference Proceedings 1267(2010) 625-626
  1. Intramolecular charge transfer and hydrogen bonding interactions of nonlinear optical material N-benzoyl glycine: Vibrational spectral study, D.Sajan, H.J. Ravindra, Neeraj Misra, I.Hubert Joe, Vibrational Spectroscopy 54 (2010) 72-80
  1. Structural conformations and vibrational spectral study of chloroflavone with density functional theoretical simulations, Y.Erdogdu,  O.Unsalan, D. Sajan, M.T.Gulluoglu, Spectrochimica Acta    Part A 78 (2010) 113–123.
  1. NIR-FT Raman, FT-IR and surface-enhanced Raman scattering and DFT based theoretical studies on the adsorption behaviour of (S)-phenylsuccinic acid on silver nanoparticles, Journal of Chemical Sciences 122 (2010) , pp. 511-519, D.Sajan, V.Bena Jothy, Thomas Kuruvilla, I.Hubert Joe

 


Publications in Seminar/Workshop Proceedings (2010-2015) 

  1. Characterization of Organic NLO Material Using Spectroscopic Techniques, Jerin Susan John, D. Sajan, T. Umadevi & K. Chaitanya, Proceedings of 5th International Conference on Perspectives in Vibrational Spectroscopy, July 2014.
  2. “Growth, molecular structure, vibrational and UV-Vis spectral analysis, first order hyperpolarizability and Z-scan studies of NLO crystal:Urea Ninhydrin Monohydrate”, V. Sasikala, D. Sajan, T, Uma Devi, K. Chaitanya, Proceedings of 5th International Conference on Perspectives in Vibrational Spectroscopy (ICOPVS 2014), Trivandrum. 8-12 July 2014.
  3. “A Density Functional Theory Computation on the Structure and Donor-Acceptor Interactions of an NLO active molecule: Guanidinium 4-nitrobenzoate (GPNB)”, V Sasikala and D Sajan, Proceedings of the “National Conference on Materials Science & Technology (MSAT-2015), Bishop Moore College, Mavelikara,  04-06 Feburary2015.
  4. “DFT studies on Molecular Structure and Vibrational Spectra of Guanidinium 4-Aminobenzoate”, Jesby George and D Sajan, Proceedings of the “National Conference on Materials Science & Technology (MSAT-2015), Bishop Moore College, Mavelikara,  04-06 Feburary 2015.
  5. Lynnette Joseph, D. Sajan and I. Hubert Joe, Scaled quantum chemical studies of the structure and vibrational spectra of 2-Hydroxy -4-Methoxybenzophenone, 23rd International Conference on Raman Spectroscopy, Bangalore, India - ICORS 2012, August 12 – 17 (2012)
  6. Sajan, Y. Erdogdu, I. Hubert Joe, DFT-based molecular modeling, NBO analysis and vibrational spectroscopic study of 3-(bromoacetyl)coumarin, Turkish Physical Society 28th International Physics Conference, 6- 9 September, Bodrum-Turkey (2011)
  7. Sajan, Lynnette Joseph, I. Hubert Joe, Density functional study on the structural conformations and intramolecular charge transfer from the vibrational spectra of 1-(4-aminophenyl) 3-(3, 4-dimethoxyphenyl)-2-propen-1-one  XII International Conference on Raman Spectroscopy (ICORS-2010), Boston, Massachusetts, USA, 08 – 13 August (2010)
  1. Thomas Kuruvilla and D.Sajan ” Nonlinear Time series analysis of Indian Regional Monthly Surface Air Temperature and Rainfall data during the period 1901 to 2000”, Proc.    International Conference on “Impact of Climate Change on Food   Security”Mavelikara (2011)
  1. Thomas Kuruvilla “ Recent advances in Teleportation with Photons” Annual Photonics Workshop,CUSAT, Cochin(2010).
  2. Thomas Kuruvilla and Sherin P John, “Time series analysis of chaotic intensity variations of semiconductor laser with high frequency modulation”  Proc. National conference on recent trends in optoelectronics and Laser Technology(2007)
  3. Thomas Kuruvilla and Sherin P John, ”Anlysis of chaotic Intensity fluctuations in  Nd.YAG laser with intracavity frequency doubling crystal” Proc. National conference on recent trends in optoelectronics and Laser Technology(2007)
  4. Thomas Kuruvilla and Sherin P John ”Fourier optics Experimental and simulation studies using He-Ne Laser and MatLab”  CUSAT, Cochin(2005)
  5. Thomas Kuruvilla and V.M.Nandakumaran, ”Numerical Study of chaos in Nd:YAG laser”, Proc. National Laser Symposium”, Ahmedabad(1997).
  6. Thomas Kuruvilla and V.M.Nandakumaran, ”Variations of chaotic behaviour with number of modes in a multimode Nd:YAG laser”, National Seminar on Application of nonlinear phenomena, Cochin (1999).
  7. Thomas Kuruvilla and V.M.Nandakumaran,”Numerical study of chaos in a coupled semiconductor laser with modulated drive current”, Proc.National Laser Symposium,Kanpur(1998)
  8. Thomas Kuruvilla and V.M.Nandakumaran,” Chaotic behaviour of a high frequency modulated semiconductor laser with change in modulation amplitude:,National Laser Symposium,Hyderabad(1999).
  9. Thomas Kuruvilla and V.M.Nandakumaran,”Chaos in semiconductor laser with modulated drive current-a numerical study” Seminar on selected topics in theoretical physics,Hyderabad(1998).
  10. Thomas Kuruvilla and V.M.Nandakumaran, ”Elimination of chaos in a multimode Nd:YAG laser with intracavity KTP crystal by coupling”, National seminar on high power lasers and their applications,Cochin(1999).
  11. Thomas Kuruvilla and Vaidyan.V.K, ”Fractal Growth”, Kerala Science Congress, (1992)
  12. Jerin Susan John, D. Sajan, K. Chaitanya, Vibrational spectroscopic studies of non- linear optical material N,N’ dimethyl urea ninhydrin, National Laser Symposium, Manipal University – NLS-22, January 8-11 (2014)
  13. Lynnette Joseph, D. Sajan, I. Hubert Joe and Jayakumari Issac “Intramolecular charge transfer from the vibrational spectra of 1-(4-Aminophenyl)-dimethoxyphenyl)-prop-2-en-1-one” 97th Indian Science Congress,Thiruvananthapuram(2010)
  14. Lynnette Joseph, D. Sajan, I. Hubert Joe and Jayakumari Issac “DFT calculations of Structure and Vibrational Spectra of 1-(4-Aminophenyl)-3-(3,4-dimethoxyphenyl)-prop-2-en-1-one” Women’s Christian College,Nagercoil(2010)
  15. "Conformational stability , Natural Bond Orbital analysis and the spectroscopic analysis of 1- (4-Aminophenyl)-3-(3, 4 –dimethoxyphenyl)-2-propen-1- one : a Density Functional Theoretical approach" UGC sponsored National seminar on Current Trends in Materials Science CTMS- 2011 at Christian College Chengannur from 4th-6th August 2011.
  16. “Vibrational Spectra and DensityFuntional Theoritical Calculations of 1,3-bis(hydroxymethyl)benzimidazolin2-one” National Conference on Recent Trends in Vibrational Spectroscopy at Bishop Moore College, Mavelikara, From 26th -27th August 2011
  17. Jerin Susan John, D. Sajan, T. Umadevi & K. Chaitanya, "Characterization of Organic NLO Material Using Spectroscopic Techniques", Proceedings of 5th International Conference on Perspectives in Vibrational Spectroscopy, July 2014.
  18. Sajan, Y. Erdogdu,  I. Hubert Joe  DFT-based molecular modeling, NBO analysis and vibrational               spectroscopic study of 3-(bromoacetyl)coumarin  Turkish Physical Society 28th International Physics                6- 9 September 2011 at Bodrum-Turkey