DEPARTMENTS
Dr. Chandrasekharan K.
Dr. Chandrasekharan K.

Professor (HAG)

Office Address:

Professor (HAG), Department of Physics, National Institute of Technology, Calicut, Kerala, India-673601

Email ID:

csk@nitc.ac.in

Home Address:

Keloth House, 12th mile, NIT campus PO, Kozhikode, Kerala, India-673601

  • M.Sc (Physics) Cochin University of Science and Technology

  • Ph.D (Physics) IIT Madras

  • Educational Qualifications

    • M.Sc (Physics) Cochin University of Science and Technology

    • Ph.D (Physics) IIT Madras

    Journals

    1. Journal of Physical Chemistry C 127, 2, 1244– 1250 Coupling of the Tamm Plasmon to the BODIPY Fluorophore in Photonic Crystals for Nonlinear Optical Applications (2023)

    2. Optics & Laser Technology 159, 109009 Photonic band-edge assisted enhanced nonlinear absorption of carbon encapsulated gold nanostructures in polymeric multilayers (2023)

    3. Journal of Physical Chemistry C 2023, 127, 1, 568–576 Nonlinear Optical Studies of [Pt17(CO)12(PPh3)8]n+ Metal Nanoclusters and Their Enhancement via All-Plastic Photonic Crystal Cavity (2023)

    4. Optical Materials 131(12):112557 Enhanced nonlinear absorptive behaviour of phenylcalix[4]resorcinarene-graphene oxide nanocomposite (2022)

    5. Journal of Molecular Liquids, Volume 348, 118456, An insight into the photophysical and nonlinear optical properties of novel 1,3,4-oxadizole based donor-acceptor systems, (2022),

    6. ACS Applied Electronic Materials 4 (1), 138-148, All-Optical Diode Action through Enhanced Nonlinear Response from Polymeric Photonic Crystal Microcavity, (2022)

    7. Journal of Molecular Liquids 333(12):115935 Nonlinear optical behavior of Au@Ag core- shell nanostructures (2021)

    8. J Mater Sci 56, 3035–3048 Enhanced nonlinear absorption and efficient optical limiting action of a few 1,3,4-oxadiazole-based donor–acceptor systems. (2021).

    9. Applied Organometallic Chemistry. 35:e6029. An insight into phenomenal optical non-linearities arising from synergistic relationship between selected BODIPYs and noble metal nanoparticles (2021)

    10. Journal of Molecular Intense nonlinear optical properties of ZnS quantum dot doped nematic liquid crystal compounds (2021) Liquids 328(1):115347

    11. Journal of Materials Chemistry C 8(36) Impressive nonlinear optical response of a cationic porphyrin derivative in a flexible all-polymer Bragg stack on optical Tamm mode coupling (2020)

    12. Optical Materials, 109557 Optical diode activity in an axially asymmetric nonlinear medium incorporated with phenothiazine and silver nanoparticles (2020)

    13. Nano Express 1(3):030026 Enhanced nonlinear absorption and efficient power limiting action of Au/Ag@ graphite core-shell nanostructure synthesized by laser ablation (2020)

    14. Applied Organometallic Chemistry 34(4) A Schiff base colorimetric chemosensor for CNion and its dioxidomolybdenum (VI) complexes: E valuation of the structural aspects and optoelectronic properties (2020) 1

    15. ChemPlusChem 85(8) Butterfly‐Shaped Thiophene‐Pyridine Hybrids: Green Electroluminescence and Large Third‐Order Optical Nonlinearities (2020)

    16. Optics & Laser Technology 130:106367 Optical behaviour of nematic liquid crystal doped with carbon dot in the nonlinear optical regime (2020)

    17. Photochemical and Photobiological Sciences 19(5) Facile synthesis and exploration of excited state assisted two–photon absorption property of D–A–D type thiophene–pyridine derivatives (2020)

    18. New Journal of Chemistry 2020,44, 6142- 6150 Structure–property correlations of the nonlinear optical properties of a few bipodal D–π–A molecules – an experimental and theoretical approach (2020)

    19. Dyes and Pigments, 108181 Impact of donor–acceptor alternation on optical power limiting behavior of H–Shaped thiophene– imidazo [2, 1-b][1, 3, 4] thiadiazole flanked conjugated oligomers January 2020

    20. Optical Materials, 109474 Nonlinear optical absorption and refraction properties of fluorinated trans-dicationic pyridinium porphyrin and its metal complexes November 2019

    21. Dyes and Pigments 169, 29-35 Nonlinear optical absorption and optical limiting studies of fluorinated pyridyl porphyrins in chlorobenzene: An insight into the photo-induced protonation effects October 2019

    22. Dyes and Pigments 167, 216-224 An investigation on photophysical and third–order nonlinear optical properties of novel thermally– stable thiophene–imidazo [2, 1-b][1, 3, 4] thiadiazole based azomethines August 2019

    23. Materials Chemistry and Physics 232, 311-318 ZnSe-BODIPY hybrid system for nonlinear optical switching applications June 2019 24. Optics & Laser Technology 114, 35-39 Enhanced nonlinear optical properties of ZnS nanoparticles in 1D polymer photonic crystal cavity June 2019

    25. New Journal of Chemistry 43 (23), 9232-9242 Effects of substituents on the enrichment of the optical limiting action of novel imidazo [2, 1-b][1, 3, 4] thiadiazole fused thiophene-based small molecules May 2019

    26. New Journal of Chemistry 43 (21), 7962-7971 A phenothiazine–silver hybrid system exhibiting switching and photo-induced enhancement in nonlinear optical absorption April 2019

    27. Journal of Applied Polymer Science 136 (2), 46940 Indolo [3, 2‐b] carbazole‐based poly (arylene ethynylene) s through Sonogashira coupling for optoelectronic and sensing applications January 2019

    28. Journal of Molecular Liquids 273, 497-503 Enhanced optical nonlinearity in nematic liquid crystal on doping with CdSe quantum dot January 2019

    29. Optics & Laser Technology 105, 94-101 Third-order nonlinear optical properties of phenothiazine-iodine charge transfer complexes in different proportions September 2018

    30. Polymer Bulletin 75 (7), 3069-3087 Investigation and fine-tuning of optoelectrical features of tertiary aminophenyl-activated poly (1, 3, 4-oxadiazole) conjugated system July 2018

    31. Optical Materials 79, 72-77 Phenomenal enhancement of optical nonlinearity in PTZ-I based ZnS/ZnSe nanocomposites , May 2018

    32. Physical Chemistry Chemical Enhanced nonlinear optical response from dihydroxy (5, 10, 15, 20-tetraphenyl porphyrinato) Physics 19 (43), 29641-29646 tin (iv) or SnTPP in a fully plastic photonic crystal microcavity, October 2017

    33. Materials Chemistry and Physics 197, 208-214 ZnSe/PVP nanocomposites: synthesis, structural and nonlinear optical analysis August 2017

    34. Optical Materials 67, 119-124 Structural and nonlinear optical characterizations of ZnS/PVP nanocomposites synthesized by pulsed laser ablation, May 2017

    35. Optical Materials 67, 7- 13 Effect of ferroelectric nanoparticles in the alignment layer of twisted nematic liquid crystal display May 2017

    36. Journal of Molecular Structure 1136, 244-252 Synthesis, growth, structural characterization, Hirshfeld analysis and nonlinear optical studies of a methyl substituted chalcone May 2017

    37. Journal of Optoelectronics and Advanced Materials 1, 246-250 The role of imine derivatives in enhancing the thirdorder optical nonlinearity in PMMA films for photonic applications April 2017

    38. RSC advances 6 (116), 115132- 115144 Optoelectrical, morphological and mechanical features of nitrophenyl supported poly (1, 3, 4- oxadiazole) s and their nanocomposites with TiO2 December 2016

    39. Optical Materials 58, 171-182 Synthesis, Z-Scan and Degenerate Four Wave Mixing characterization of certain novel thiocoumarin derivatives for third order nonlinear optical applications August 2016

    40. Journal of materials science 51 (10), 4748-4761 Synthesis, characterization, and fine turning of optical properties of soluble π-conjugated system with nitro-phenyl-activated 1, 3, 4-oxadiazole unit May 2016

    41. Optical Materials 54, 252-261 Reverse saturable absorption studies in polymerized indole–Effect of polymerization in the phenomenal enhancement of third order optical nonlinearity, April 2016

    42. Optical Materials 49, 59-66 Ultrafast and short pulse optical nonlinearities of meso-tetrakis-(2, 3, 5, 6-tetrafluoro-N, N, Ntrimethyl-4-aniliniumyl) porphyrin and its metal complexes, November 2015

    43. Optical Materials 45, 171-180 Synthesis, z-scan and degenerate four wave mixing characterization of certain functionalized photosensitive polyesters containing orthohydroxyazo chromophores July 2015

    44. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 136, 838-844 Third-order nonlinear optical investigations of meso-tetrakis (2, 3, 5, 6-tetrafluoro-N, N-dimethyl4-anilinyl) porphyrin and its metal complexes February 2015

    45. Physics of Plasmas 21 (12), 123507 Acceleration of neutrals in a nanosecond laser produced nickel plasma December 2014

    46. Micro & Nano Letters 9 (9), 566-568 Natural dye-doped poly (methyl methacrylate) microparticles for nonlinear optics September 2014

    47. Journal of Applied Physics 116 (1), 013301 Time of flight emission spectroscopy of laser produced nickel plasma: Short-pulse and ultrafast excitations,July 2014

    48. Optical Materials 36 (2), 304-309 Third-order nonlinear optical responses in derivatives of phenylhydrazone by Z-scan and optical limiting studies-influence of noble metal nanoparticles December 2013

    49. Optics Communications 309, 279-281 Nonlinear optical characteristics in lithium substituted ZnO thin films November 2013

    50. Thin Solid Films 531, 378-384 Enhanced linear and nonlinear optical properties of thermally stable ZnO/poly (styrene)–poly (methyl methacrylate) nanocomposite films, March 2013

    51. Optics Communications 287, 224-227 Third order nonlinear optical properties of azomethine derivatives January 2013

    52. Optics Communications 285 (24), 5433- 5439 Size dependent nonlinear optical properties of spin coated zinc oxide-polystyrene nanocomposite films November 2012 5

    53. Solid state communications 152 (4), 268-272 χ (3) measurements in Schiff’s base derivatives: Effect of metal nanoparticles, February 2012

    54. Journal of Optics 40 (4), 193-197 Preparation and study of nonlinear optical response of Ag and Au nano particles doped PVA/PVP thin films December 2011

    55. Current Applied Physics 11 (4), 1089-1093 Multiphoton absorption process and self-focusing effect in coumarin derivative doped PMMA films by z-scan and optical limiting studies July 2011

    56. Optik 123 (1), 21-25 Third-order nonlinear optical response of newly synthesized accepter/donor substituted propylidene aryloxy acet hydrazide, September 2010

    57. Journal of Applied Polymer Science 119 (1), 595-601 Study of third‐order optical nonlinearities of substituted hydrazones in PMMA July 2010

    58. Journal of Modern Optics 57 (8), 670-676 Third-order nonlinear optical properties in 4-[(E)-(2- phenylhydrazinylidene) methyl] tetrazolo [1, 5-a] quinoline doped PMMA thin film using Z-scan technique June 2010

    59. Journal of Modern Optics 56 (17), 1853- 1859 Donor/acceptor effects on the nonlinear optical properties of 1, 3 diphenyl propenones October 2009

    60. Journal of optoelectronics and advanced materials 11 (5), 666-672 Third-order optical nonlinearities in methoxysubstituted 1, 3 diphenyl propenones by Z-scan and Optical Limiting studies , 2009

    61. Optical Materials 31 (11), 1564-1569 χ (3) measurements and optical limiting studies of 2- chloro-5-nitro-N′-[(1E)-phenylmethylidene] benzohydrazide with substituents , September 2009

    62. Japanese Journal of Applied Physics 47 (8R), 6312 Substituent dependence of third-order optical nonlinearity in chalcone derivatives August 2008

    63. Journal of crystal growth 310 (18), 4169- 4176 Growth and characterization of an efficient nonlinear optical D–π–A–π–D type chalcone single crystal August 2008

    64. Journal of applied polymer science 108 (5), 3218-3224 Third‐order nonlinear optical properties and two‐ photon absorption in polymers doped with p‐phenyl sydnone June 2008

    65. Journal of crystal growth 310 (10), 2543- 2549 41 Synthesis, crystal growth and characterization of a phase matchable nonlinear optical single crystal: pchloro dibenzylideneacetone May 2008

    66. Optical Materials 30 (8), 1297-1303 Studies on third-order nonlinear optical properties of chalcone derivatives in polymer host April 2008

    67. Materials Research Bulletin 43 (3), 707-713 Nonlinear optical properties of p-(N, Ndimethylamino) dibenzylideneacetone doped polymer March 2008

    68. Journal of applied polymer science 106 (5), 3033-3039 Synthesis and nonlinear optical characterization of copolymers containing alternating 3, 4‐ dialkoxythiophene and (1, 3, 4‐oxadiazolyl) benzene units December 2007

    69. Applied Physics B 88 (1), 105- 110 Third order nonlinear optical properties and optical limiting in donor/acceptor substituted 4′-methoxy chalcone derivatives , June 2007

    70. Optics communications 271 (1), 236-240 Nonlinear optical studies of a newly synthesized copolymer containing oxadiazole and substituted thiophenes March 2007

    71. Synthetic metals 157 (2-3), 142- 146 Third order nonlinear optical properties and two photon absorption in newly synthesized phenyl sydnone doped polymer, February 2007

    72. Optics communications 269 (1), 235-240 Nonlinear optical studies of 1-3-diaryl-propenones containing 4-methylthiophenyl moieties January 2007

    73. Chemical physics 331 (1), 125-130 Third-order nonlinear optical studies of newly synthesized polyoxadiazoles containing 3, 4- dialkoxythiophenes December 2006

    74. Journal of Physics B: Atomic, Molecular and Optical Physics 39 (18), 3747 Z-scan and degenerate four wave mixing studies on newly synthesized copolymers containing alternating substituted thiophene and 1, 3, 4- oxadiazole units, September 2006

    75. Chemical physics 324 (2- 3), 699-704 χ (3) measurements and optical limiting in dibenzylideneacetone and its derivatives, May 2006

    76. Polymer 47 (10), 3565-3567 Studies on nonlinear optical parameters of bischalcone derivatives doped polymer, May 2006

    77. Journal of materials science 35 (6), 1561-1564 Electron spin resonance of MO5+ in KTiOPO4 March 2000

    78. Food Chemistry 57 (4), 537-540 ESR spectroscopic studies on free radical quenching action of finger millet (Eleusine coracana) December 1996

    79. Solid state communications 97 (8), 709-711 ESR of Tl2+ ions in alkali nitrates February 1996

    80. Physica B: Condensed Matter 215 (2- 3), 243-248 Radiation-induced paramagnetic silver centers in LiNaSO4 October 1995

    81. Physica B: Condensed Matter 205 (3- 4), 349-352 ESR study of Ag2+ ions in KNO3 March 1995

     

    Professional Experience

    • Professor : 2010 onwards

    • Associate Professor : 2006 - 2010

    • Assistant professor : 2002 - 2005 , National Institute of Technology , Surathkal, Karnataka & 2005 – 2006 National Institute of Technology -Calicut

    • Visiting scientist at IIT Madras with Indian Academy Fellowship (Summer 2000).

    • 1995 – 2002 Lecturer, National Institute of Technology, Surathkal, Karnataka

    • 1990-1995: Research Fellow, Department of Physics, IIT-Madras (Under Govt. India’s Fellowship)

    • 1987-1989: Lecturer in Physics, Mahatma Gandhi Govt. College Mahe, Pondicherry state

    Current Courses

    • Condensed Matter Physics II,  M.Sc. IV sem

    • Physics Lab (B.Tech I year)

    Previously Offered Courses

    • Electromagnetics - I   (B.Tech. Engineering Physics )

    • Physics of Materials  ( M.Tech Material science)

    • Mathematical Physics – I & II (MSc Physics )

    • Electromagnetic Theory –I  ( MSc Physics)

    • Modern optics   (MSc Physics)

    • Photonic Band Gap Structure ( MSc Physics)

    Sponsored Projects

    • Investigation of optical nonlinearity by defect state in one dimensional photonic crystals- completed in 2017 October : DST ( Govt. of India )

    • Enhancement of third-order optical nonlinearity  in  photonic crystal cavity for optical switching - completed in 2018 October: Kerala DST (KSCSTE)

    • Linear and nonlinear optical properties of metal nano-colloids in polymers  - 21.40 lakhs – completed  in 2011: DST ( Govt. of India )  

    • Optical Sensors With High-Speed Optical Limiting Materials    under  R & D scheme, MHRD ( Govt. of India)   - completed at NITK- Surathkal  

    • Identification of New materials for Photonics applications   completed at  NITK  Surathkal: DST (Govt.of India) project under Young Scientist Scheme. “

    • Teaching and research in the area of Material Science : DST (under FIST) project  Co-investigator. completed at NITK- Surathkal   

    Research Guidance

    Ten  students have  completed their  Ph.D  with following topics:

    (1) Study of Third order nonlinear optical process in Chalcone Derivatives  and  noval conjugated polymers ( Joint Supervisor)

    (2) Nonlinear optical studies and structural property relations of Hydrazone derivatives

    (3) Third-order nonlinear optical properties of coumarin derivatives and metal-polymer nanocomposite

    (4) Investigations of third order optical nonlinearity in derivatives of schiff base and phenyilhydrozone

    (5) Investigation of Interferometric methods for measurement of heat transfer in compact passages  ( co- investigator)

    (6) Spectral and temporal characterization of nano second and femto second laser produced plasma from metallic targets (co-investigator)

    (7) Metalloprorphyrins, derivaties of Pyrazines and Pyridones for third order optical applications

    (8) Synthesis and Characterization of ZnS/ZnSe Nanostructures   and their organic Composites for Nonlinear Optical Applications

    (9) Porphyrins Incorporated One Dimensional Photonic Crystal Crystal Structures for Enhanced Nonlinear Optical Effects

    (10) An Insight into the Optical Nonlinearities of Certain Au/Ag Based Metal-Metal/Organic Core Shell Nanostructures and Nanohybrids

     

    Five more are working for their Ph.D under my guidance 

    Nonlinear optical materials for Photonics & Electron Spin Resonance (ESR) study of transition metal ions and Free radicals