All Stories

  1. Investigation of dielectric properties of blended ester oils and dielectric fluids used in transformer at different temperatures

    Article • January 2022, American Institute of Physics

    PARTHA KUMBHAKAR, P. Kumbhakar, Sujit Khandai

  2. Nanosecond Laser–Assisted Tuning of the Plasmon Band of Triangular-Shaped Ag Nanostructures and Development of a Broadband Visible-Near Infrared Light Absorber

    Article • Plasmonics, August 2019, Springer Science + Business Media

    P. Kumbhakar

  3. Tailoring of structural and photoluminescence emissions by Mn and Cu co-doping in 2D nanostructures of ZnS for the visualization of latent fingerprints and generation of white light

    Article • Nanoscale, January 2019, Royal Society of Chemistry

    P. Kumbhakar

  4. Colloidal N-Doped Graphene Quantum Dots with Tailored Luminescent Downshifting and Detection of UVA Radiation with Enhanced Responsivity

    Article • ACS Omega, November 2018, American Chemical Society (ACS)

    P. Kumbhakar

  5. In-situ synthesis of rGO-ZnO nanocomposite for demonstration of sunlight driven enhanced photocatalytic and self-cleaning of organic dyes and tea stains of cotton fabrics

    Article • Journal of Hazardous Materials, October 2018, Elsevier

    P. Kumbhakar

  6. Refractive index and temperature sensing in anisotropic silver nanostructures with stable photo-physical properties

    Article • Applied Physics A, November 2017, Springer Science + Business Media

    P. Kumbhakar

  7. Near white light emission and enhanced photocatalytic activity by tweaking surface defects of coaxial ZnO@ZnS core-shell nanorods

    Article • Journal of Applied Physics, April 2017, American Institute of Physics

    P. Kumbhakar

  8. Nonlinear Optical Properties and Temperature Dependent Photoluminescence in hBN-GO Heterostructure 2D Material

    Article • The Journal of Physical Chemistry C, March 2017, American Chemical Society (ACS)

    P. Kumbhakar

  9. Measurement of large nonlinear refractive index of natural pigment extracted from Hibiscus rosa-sinensis leaves with a low power CW laser and by spatial self-phase modulation technique

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, February 2017, Elsevier

    P. Kumbhakar

  10. Continuous wave random lasing in naturally occurring biocompatible pigments and reduction of lasing threshold using triangular silver nanostructures as scattering media

    Article • Nanoscale, January 2017, Royal Society of Chemistry

    P. Kumbhakar

  11. A Novel Technique of Synthesis of Highly Fluorescent Carbon Nanoparticles from Broth Constituent and In-vivo Bioimaging of C. elegans

    Article • Journal of Fluorescence, July 2016, Springer Science + Business Media

    P. Kumbhakar

  12. Mn2+ doped ZnS quantum dots in ferroelectric liquid crystal matrix: Analysis of new relaxation phenomenon, faster optical response, and concentration dependent quenching in photoluminescence

    Article • Journal of Applied Physics, March 2016, American Institute of Physics

    P. Kumbhakar

  13. Effect of Ag-doped TiO2 thin film passive layers on the performance of photo-anodes for dye-sensitized solar cells

    Article • Materials Science in Semiconductor Processing, March 2016, Elsevier

    P. Kumbhakar

  14. Local structure and photocatalytic properties of sol–gel derived Mn–Li co-doped ZnO diluted magnetic semiconductor nanocrystals

    Article • RSC Advances, January 2016, Royal Society of Chemistry

    P. Kumbhakar

  15. Enhanced nonlinear optical properties of graphene oxide–silver nanocomposites measured by Z-scan technique

    Article • RSC Advances, January 2016, Royal Society of Chemistry

    P. Kumbhakar

  16. Template-free hydrothermal synthesis of amphibious fluorescent carbon nanorice towards anti-counterfeiting applications and unleashing its nonlinear optical properties

    Article • RSC Advances, January 2016, Royal Society of Chemistry

    P. Kumbhakar

  17. Condition monitoring of high voltage transformers using Fiber Bragg Grating Sensor

    Article • Measurement, October 2015, Elsevier

    P. Kumbhakar

  18. Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

    Article • Plasmonics, September 2015, Springer Science + Business Media

    P. Kumbhakar

  19. Stabilization of the high-temperature and high-pressure cubic phase of ZnO by temperature-controlled milling

    Article • Journal of Materials Science, September 2015, Springer Science + Business Media

    P. Kumbhakar

  20. On-line condition assessment of power transformers using wideband FBG based acoustic sensor

    Article • June 2015, SPIE

    P. Kumbhakar

  21. Observation of two-photon induced three-photon absorption in chemically synthesized silver nanostructures

    Article • Chemical Physics Letters, June 2015, Elsevier

    P. Kumbhakar

  22. Red shift of the band-edge photoluminescence emission and effects of annealing and capping agent on structural and optical properties of ZnO nanoparticles

    Article • Journal of Alloys and Compounds, March 2015, Elsevier

    P. Kumbhakar

  23. Simple chemical aqueous synthesis of dahlia nanoflower consisting of finger-like ZnO nanorods and observation of stable ultraviolet photoluminescence emission

    Article • Journal of Physics and Chemistry of Solids, March 2015, Elsevier

    P. Kumbhakar

  24. Photo-conversion efficiency measurement of dye-sensitized solar cell using nanocrystalline TiO2 thin film as photo-anodes

    Article • Measurement, February 2015, Elsevier

    P. Kumbhakar

  25. Nonlinear Optical properties of 2D h-BN nanosheets are reported by using the Z-scan technique.

    Article • Advanced Optical Materials, January 2015, Wiley

    P. Kumbhakar, Arup Kole

  26. Synthesis of anisotropic nanostructures of silver for its possible applications in glucose and temperature sensing

    Article • Materials Research Express, November 2014, Institute of Physics Publishing

    Pathik Kumbhakar, P. Kumbhakar

  27. Effect of thermal annealing on dual photoluminescence emission characteristics of chemically synthesized uncapped Mn2+ doped ZnS quantum dots

    Article • Journal of Luminescence, November 2014, Elsevier

    P. Kumbhakar

  28. Observation of Combined Effect of Temperature and Pressure on Cubic to Hexagonal Phase Transformation in ZnS at the Nanoscale

    Article • Crystal Growth & Design, August 2014, American Chemical Society (ACS)

    P. Kumbhakar

  29. Observations of unusual temperature dependent photoluminescence anti-quenching in two-dimensional nanosheets of ZnS/ZnO composites and polarization dependent photoluminescence enhancement in fungi-like ZnO nanostructures

    Article • Journal of Applied Physics, June 2014, American Institute of Physics

    P. Kumbhakar

  30. Effect of polyethylene glycol on the particle size and photoluminescence emissions characteristics of chemically synthesized ZnO nanoparticles

    Article • Optics Communications, May 2014, Elsevier

    P. Kumbhakar

  31. Development of multilayered nanocrystalline TiO2 thin films for photovoltaic application

    Article • Optical Materials, April 2014, Elsevier

    P. Kumbhakar, Dr Kalisadhan Mukherjee

  32. Observation of two-photon absorption at UV radiation in ZnS quantum dots

    Article • Pramana, February 2014, Springer Science + Business Media

    P. Kumbhakar

  33. Nonlinear optical second harmonic generation in ZnS quantum dots and observation on optical properties of ZnS/PMMA nanocomposites

    Article • Optics Communications, February 2014, Elsevier

    P. Kumbhakar, Professor Praveen C Ramamurthy

  34. Simple method of synthesis of wurtzite ZnS nanostructures and emission of white light

    Article • Journal of Materials Chemistry C, January 2014, Royal Society of Chemistry

    P. Kumbhakar

  35. Observations on nonlinear optical properties of ZnS nanosheet, ZnS–ZnO composite nanosheet and porous ZnO nanostructures dispersed in aqueous medium

    Article • Chemical Physics Letters, January 2014, Elsevier

    P. Kumbhakar

  36. Optical Properties of Nanoparticles and Nanocomposites

    Article • Journal of Nanomaterials, January 2014, Hindawi Publishing Corporation

    P. Kumbhakar

  37. Low cost RF sensor for partial discharge detection of high voltage apparatus

    Article • December 2013, Institute of Electrical & Electronics Engineers (IEEE)

    P. Kumbhakar

  38. Observation of bandgap narrowing effect and photoluminescence emission characteristics of chemically synthesized Co doped ZnO nanosheets

    Article • Indian Journal of Physics, November 2013, Springer Science + Business Media

    P. Kumbhakar

  39. Observation of exciton–phonon coupling and enhanced photoluminescence emission in ZnO nanotwins synthesized by a simple wet chemical approach

    Article • Materials Letters, June 2013, Elsevier

    P. Kumbhakar

  40. One-step synthesis of Zn/ZnO hollow nanoparticles by the laser ablation in liquid technique

    Article • Laser Physics Letters, April 2013, Institute of Physics Publishing

    P. Kumbhakar

  41. Optimization of Mn2+ doping in ZnS QDs for enhanced photoluminesence

    Article • Journal of Applied Physics, March 2013, American Institute of Physics

    Pathik Kumbhakar, P. Kumbhakar

  42. Synthesis of silver hollow nanoparticles and observation of photoluminescence emission properties

    Article • Journal of Luminescence, February 2013, Elsevier

    P. Kumbhakar

  43. Usage of nanotechnology based gas sensor for health assessment and maintenance of transformers by DGA method

    Article • International Journal of Electrical Power & Energy Systems, February 2013, Elsevier

    P. Kumbhakar

  44. Observation of Nonlinear Optical Properties of Chemically Synthesized Cu2+ Doped ZnS Nanoparticles

    Article • January 2013, Springer Science + Business Media

    P. Kumbhakar

  45. Influence of Co Doping on the Structural and Optical Properties of ZnO Nanostructures

    Article • January 2013, Springer Science + Business Media

    P. Kumbhakar

  46. A simple method of synthesis and optical properties of Mn doped ZnO nanocups

    Article • Materials Letters, January 2013, Elsevier

    P. Kumbhakar

  47. Ethylenediamine assisted synthesis of wurtzite zinc sulphide nanosheets and porous zinc oxide nanostructures: near white light photoluminescence emission and photocatalytic activity under visible light irradiation

    Article • CrystEngComm, January 2013, Royal Society of Chemistry

    P. Kumbhakar

  48. Optical properties of tin oxide nanoparticles prepared by laser ablation in water: Influence of laser ablation time duration and laser fluence

    Article • Materials Characterization, November 2012, Elsevier

    P. Kumbhakar

  49. Online monitoring of transformers using gas sensor fabricated by nanotechnology

    Article • International Transactions on Electrical Energy Systems, August 2012, Wiley

    P. Kumbhakar

  50. Linear optical absorption and photoluminescence emission properties of gold nanoparticles prepared by laser ablation technique

    Article • Applied Physics A, June 2012, Springer Science + Business Media

    P. Kumbhakar

  51. Observation of nonlinear absorption and visible photoluminescence emission in chemically synthesized Cu2+ doped ZnS nanoparticles

    Article • Applied Physics Letters, January 2012, American Institute of Physics

    Pathik Kumbhakar, P. Kumbhakar

  52. Room temperature chemical synthesis of flower-like ZnO nanostructures

    Article • Materials Letters, January 2012, Elsevier

    P. Kumbhakar

  53. Linear and Nonlinear Optical properties of Colloidal Cu doped ZnS Nanoparticles

    Article • January 2012, Optical Society of America (OSA)

    P. Kumbhakar

  54. Cubic-to-hexagonal phase transition and optical properties of chemically synthesized ZnS nanocrystals

    Article • Results in Physics, January 2012, Elsevier

    P. Kumbhakar

  55. Effect of manganese doping on the photoluminescence characteristics of chemically synthesized zinc sulfide nanoparticles

    Article • Applied Nanoscience, September 2011, Springer Science + Business Media

    P. Kumbhakar

  56. Onset of sphalerite to wurtzite transformation in ZnS nanoparticles

    Article • Journal of Applied Physics, August 2011, American Institute of Physics

    Pathik Kumbhakar, P. Kumbhakar

  57. Green luminescence from triphenylphosphine functionalized single-wall carbon nanotubes

    Article • Applied Surface Science, May 2011, Elsevier

    P. Kumbhakar

  58. Effect of ageing in transformer oil using UV-visible spectrophotometeric technique

    Article • Journal of Optics, March 2011, Springer Science + Business Media

    P. Kumbhakar

  59. Synthesis and study of optical and electrical characteristics of a hybrid structure of single wall carbon nanotubes and silver nanoparticles

    Article • Journal of Nanoparticle Research, February 2011, Springer Science + Business Media

    P. Kumbhakar

  60. NONLINEAR OPTICAL PROPERTIES OF DOPED ZnS QUANTUM DOTS

    Article • International Journal of Nanoscience, February 2011, World Scientific Pub Co Pte Lt

    P. Kumbhakar

  61. BLUE-GREEN LUMINESCENCE OF CHEMICALLY SYNTHESIZED MWCNT/CdS NANOHYBRID STRUCTURE

    Article • International Journal of Nanoscience, February 2011, World Scientific Pub Co Pte Lt

    P. Kumbhakar

  62. Observation of enhanced two-photon absorption in ZnS quantum dots at an ultraviolet wavelength

    Article • Chinese Optics Letters, January 2011, Shanghai Institute of Optics and Fine Mechanics

    P. Kumbhakar

  63. Observation of nonlinear optical effects in some semiconductor quantum dot materials using Nd∶YAG laser radiation

    Article • Optics and Precision Engineering, January 2011, Shanghai Institute of Optics and Fine Mechanics

    P. Kumbhakar

  64. Blue–green luminescence by SWCNT/ZnO hybrid nanostructure synthesized by a simple chemical route

    Article • Physica E Low-dimensional Systems and Nanostructures, November 2010, Elsevier

    P. Kumbhakar

  65. Synthesis and study of photoluminescence characteristics of carbon nanotube/ZnS hybrid nanostructures

    Article • Journal of Experimental Nanoscience, August 2010, Taylor & Francis

    P. Kumbhakar

  66. Synthesis and enhanced green photoluminescence emission from BCT ZnS nanocrystals

    Article • physica status solidi (a), June 2010, Wiley

    P. Kumbhakar

  67. CHARACTERISTIC PHOTOLUMINESCENCE OF SWCNT/CdS NANOHYBRID SYNTHESIZED BY A SIMPLE CHEMICAL ROUTE

    Article • International Journal of Nanoscience, June 2010, World Scientific Pub Co Pte Lt

    P. Kumbhakar

  68. Synthesis and photoluminescence properties of silver nanowires

    Article • Current Applied Physics, May 2010, Elsevier

    P. Kumbhakar

  69. Visible photoluminescence of MWCNT/CdS nanohybrid structure synthesized by a simple chemical process

    Article • Materials Science and Engineering B, March 2010, Elsevier

    P. Kumbhakar

  70. Optical Properties of Co[sup 2+] Doped ZnS Nanocrystals

    Article • January 2010, American Institute of Physics

    P. Kumbhakar

  71. Monitoring of high voltage power transformer using direct optical partial discharge detection technique

    Article • Journal of Optics, December 2009, Springer Science + Business Media

    P. Kumbhakar

  72. Broadband sum-frequency mixing in some recently developed nonlinear optical crystals

    Article • Optical Engineering, December 2009, SPIE

    P. Kumbhakar

  73. Three-photon-induced four-photon absorption and nonlinear refraction in ZnO quantum dots

    Article • Optics Letters, November 2009, Optical Society of America (OSA)

    P. Kumbhakar

  74. Synthesis of wurtzite-phase ZnS nanocrystal and its optical properties

    Article • Journal of Luminescence, November 2009, Elsevier

    P. Kumbhakar

  75. Enhanced visible light emission from Co2+ doped ZnS nanoparticles

    Article • Physica B Condensed Matter, November 2009, Elsevier

    P. Kumbhakar

  76. Enhanced three-photon absorption and nonlinear refraction in ZnS and Mn2+ doped ZnS quantum dots

    Article • Applied Physics Letters, October 2009, American Institute of Physics

    P. Kumbhakar

  77. Multiphoton absorption and refraction in Mn2+ doped ZnS quantum dots

    Article • Journal of Applied Physics, January 2009, American Institute of Physics

    P. Kumbhakar

  78. Partial discharge measurement of transformer with ICT facilities

    Article • January 2009, Institute of Electrical & Electronics Engineers (IEEE)

    P. Kumbhakar

  79. ICT enabled high voltage laboratory: Cost effective tool for engineering education

    Article • January 2009, Institute of Electrical & Electronics Engineers (IEEE)

    P. Kumbhakar

  80. Yellow-orange light emission from Mn2+-doped ZnS nanoparticles

    Article • Physica E Low-dimensional Systems and Nanostructures, September 2008, Elsevier

    P. Kumbhakar

  81. Synthesis and optical characterization of monodispersed Mn2+ doped CdS nanoparticles

    Article • Physics Letters A, September 2008, Elsevier

    P. Kumbhakar

  82. Ultra-broadband optical parametric amplification in KBe2BO3F2 crystal

    Article • Optics Communications, September 2007, Elsevier

    P. Kumbhakar

  83. Generation of coherent tunable deep UV radiation for detection and absorption studies of explosives RDX and TNT

    Article • Journal of Applied Spectroscopy, July 2007, Springer Science + Business Media

    P. Kumbhakar

  84. Some Newly Developed Crystals for Measurement of Ultrafast Laser Pulses by Second Harmonic Generation

    Article • January 2007, Springer Science + Business Media

    P. Kumbhakar

  85. Nonlinear optical properties of some newly developed crystals for measurement of ultrafast laser pulses

    Article • Brazilian Journal of Physics, December 2006, FapUNIFESP (SciELO)

    P. Kumbhakar

  86. Generation of tunable infrared radiation in rubidium titanyl phosphate crystal for the optical measurement of number density, absorption cross-section of methane gas

    Article • Journal of Quantitative Spectroscopy and Radiative Transfer, March 2006, Elsevier

    P. Kumbhakar

  87. Noncollinear noncritically phase-matched generation of tunable far-UV radiation in an LB4 crystal

    Article • Quantum Electronics, September 2005, Turpion-Moscow Limited

    P. Kumbhakar

  88. Ultrabroad-band noncollinear optical parametric amplification in some new nonlinear optical crystals

    Article • January 2005, Springer Science + Business Media

    P. Kumbhakar

  89. A comparative study of laser-induced surface damage thresholds in BBO crystals and effect of impurities

    Article • Optical Materials, October 2004, Elsevier

    P. Kumbhakar

  90. Sellmeier dispersion for phase-matched terahertz generation in ZnGeP_2

    Article • Applied Optics, June 2004, Optical Society of America (OSA)

    P. Kumbhakar

  91. Quasi-monocyclic near-infrared pulses with a stabilized carrier-envelope phase characterized by noncollinear cross-correlation frequency-resolved optical gating

    Article • Optics Letters, May 2004, Optical Society of America (OSA)

    P. Kumbhakar

  92. Nonlinear optical properties of Li 2 B 4 O 7 (LB4) crystal for the generation of tunable ultra-fast laser radiation by optical parametric amplification

    Article • Applied Physics B Photophysics and Laser Chemistry, January 2004, Springer Science + Business Media

    P. Kumbhakar

  93. Phase-matching in ZnGeP2 for the generation of terahertz radiation by difference-frequency mixing

    Article • January 2004, Optical Society of America (OSA)

    P. Kumbhakar

  94. Generation of Tunable Near-UV Laser Radiation by Type-I Second-Harmonic Generation in a New Crystal, K2Al2B2O7(KABO)

    Article • Japanese Journal of Applied Physics, October 2003, Institute of Physics Publishing

    P. Kumbhakar

  95. Ultrabroad-band phase matching in two recently grown nonlinear optical crystals for the generation of tunable ultrafast laser radiation by type-I noncollinear optical parametric amplification

    Article • Journal of Applied Physics, August 2003, American Institute of Physics

    P. Kumbhakar

  96. Highly efficient deep ultraviolet generation by sum-frequency mixing in a BBO crystal pair

    Article • Pramana, July 2002, Springer Science + Business Media

    P. Kumbhakar

  97. Generation of UV radiation in a lithium tetraborate crystal by walk-off compensated Type I sum-frequency mixing

    Article • Quantum Electronics, April 2002, Turpion-Moscow Limited

    P. Kumbhakar

  98. Tunable near-infrared radiation by difference frequency mixing in a lithium tetraborate crystal

    Article • Applied Physics B Photophysics and Laser Chemistry, March 2001, Springer Science + Business Media

    P. Kumbhakar

  99. Tunable mid-infrared generation in cesium lithium borate crystal

    Article • Optics Communications, February 2001, Elsevier

    P. Kumbhakar

  100. Type-I walk-off compensated second and fourth harmonic generation of Nd:YAG laser radiation from a Li 2 B 4 O 7 crystal

    Article • Journal of Physics D Applied Physics, January 2001, Institute of Physics Publishing

    P. Kumbhakar

  101. Third harmonic generation of CO2 laser radiation in AgGaSe2 crystal

    Article • Pramana, September 2000, Springer Science + Business Media

    P. Kumbhakar

  102. Generation of ultraviolet radiation with wide angular tolerance in cesium lithium borate crystal

    Article • Pramana, September 2000, Springer Science + Business Media

    P. Kumbhakar

  103. Study of laser induced damage threshold and effect of inclusions in some nonlinear crystals

    Article • Applied Surface Science, July 2000, Elsevier

    P. Kumbhakar

  104. Comment on “ZnGeP2 birefringence and its temperature dispersion using polarized interference” [J. Appl. Phys. 81, 425 (1997); 77, 5942 (1995)]

    Article • Journal of Applied Physics, May 2000, American Institute of Physics

    P. Kumbhakar

  105. Widely tunable deep ultraviolet generation in CLBO

    Article • Optics Communications, March 2000, Elsevier

    P. Kumbhakar

  106. Tunable coherent far-UV generation by frequency conversion in BBO

    Article • Quantum Electronics, September 1999, Turpion-Moscow Limited

    P. Kumbhakar

  107. Tunable infrared generation in KTA and applications

    Article • Pramana, August 1999, Springer Science + Business Media

    P. Kumbhakar

  108. Efficient generation of 200–230-nm radiation in beta barium borate by noncollinear sum-frequency mixing: errata

    Article • Applied Optics, March 1999, Optical Society of America (OSA)

    P. Kumbhakar

  109. Efficient generation of 200–230-nm radiation in beta barium borate by noncollinear sum-frequency mixing

    Article • Applied Optics, November 1998, Optical Society of America (OSA)

    P. Kumbhakar

  110. Comment on “Dispersion of birefringence in AgGaS2 and CuGaS2” [J. Appl. Phys. 82, 3100 (1997)]

    Article • Journal of Applied Physics, August 1998, American Institute of Physics

    P. Kumbhakar

  111. Generation of tunable 1879–196-nm radiation in ?-BaB_2O_4:?errata

    Article • Optics Letters, February 1998, Optical Society of America (OSA)

    P. Kumbhakar

  112. Generation of tunable 1879–196-nm radiation in β-Ba_2BO_4

    Article • Optics Letters, November 1997, Optical Society of America (OSA)

    P. Kumbhakar