Subhajit Chakraborty

IIT Kanpur

Education / Work History

  • Ph.D. Scholar, IIT Kanpur (2018-present)
  • M.Tech., IIT Delhi (2018)
  • M.Sc., SKBU Purulia (2016)
  • B.Sc., SKBU Purulia (2014)

Research Topic / Interest

My main interests are currently:

  • Multiphoton Microscopy
  • Thermal lens Spectroscopy

Publications

None yet.

  1. Sensing the Molecular Properties in Methanol and Its Binary Mixtures Using Time-Resolved Thermal Lens Spectrometer. S. Chakraborty, A. K. Rawat, and D. Goswami, in 2019 Workshop on Recent Advances in Photonics (WRAP) (2019), pp. 1–3 [Abstract] [BibTeX]

    Abstract: Mode Mismatched Pump-Probe spectroscopic method was employed to examine the thermally induced nonlinear optical properties of methanol and its binary mixtures. The heat transfer mechanism in methanol and its binary mixtures with carbon tetrachloride (CCl4) at different concentrations of methanol is investigated. Methanol has the highest Thermal Lens (TL) signal, and CCl4 does not have any TL signal at all. However, the presence of CCl4 modulates the TL signal of the binary mixture. The time-domain shift in TL signal is observed for different concentrations of methanol, which indicates the unusual molecular behavior in the binary mixture.

     BibTeX: @inproceedings{chakrabortySensingMolecularProperties2019,
  title = {Sensing the {{Molecular Properties}} in {{Methanol}} and Its {{Binary Mixtures}} Using {{Time}}-{{Resolved Thermal Lens Spectrometer}}},
  booktitle = {2019 {{Workshop}} on {{Recent Advances}} in {{Photonics}} ({{WRAP}})},
  author = {Chakraborty, Subhajit and Rawat, Ashwini Kumar and Goswami, Debabrata},
  date = {2019-12},
  pages = {1--3},
  issn = {null},
  doi = {10.1109/WRAP47485.2019.9013697},
  eventtitle = {2019 {{Workshop}} on {{Recent Advances}} in {{Photonics}} ({{WRAP}})},
  keywords = {Femtosecond Laser,Nonlinear Optics,Nonlinear Spectroscopy,Thermal Lens}
}
  2. Thermal Inflection Study of Methanol-Hexane Mixtures Using Time-Resolved Thermal Lens Technique. A. K. Rawat, S. Chakraborty, and D. Goswami, in 2019 Workshop on Recent Advances in Photonics (WRAP) (2019), pp. 1–3 [Abstract] [PDF] [BibTeX]

    Abstract: Time-resolved thermal lens (TL) technique is used to measure the heat transfer in pure methanol and its binary mixtures with hexane. We used dual-beam mode mismatched pump-probe scheme where a femtosecond laser beam of 1560 nm was used as a pump beam, and its frequency-doubled 780 nm beam was used as probe beam. TL Signal decreases with increasing concentration of hexane in the binary mixture. On higher concentration of Hexane in binary mixture then we have found convective heat transfer mode was absent. At 40%-60% methanol hexane mixture, we observed a sudden curious jump in TL signal.

     BibTeX: @inproceedings{rawatThermalInflectionStudy2019,
  ids = {rawatThermalInflectionStudy2019a},
  title = {Thermal {{Inflection Study}} of {{Methanol}}-{{Hexane Mixtures}} Using {{Time}}-{{Resolved Thermal Lens Technique}}},
  booktitle = {2019 {{Workshop}} on {{Recent Advances}} in {{Photonics}} ({{WRAP}})},
  author = {Rawat, Ashwini Kumar and Chakraborty, Subhajit and Goswami, Debabrata},
  date = {2019-12},
  pages = {1--3},
  issn = {null},
  doi = {10.1109/WRAP47485.2019.9013736},
  url = {10.1109/WRAP47485.2019.9013736},
  eventtitle = {2019 {{Workshop}} on {{Recent Advances}} in {{Photonics}} ({{WRAP}})},
  keywords = {binary mixture,convection,convective heat transfer mode,dual-beam mode mismatched pump-probe scheme,Femtosecond Laser,femtosecond laser beam,frequency-doubled 780 nm beam,Heating systems,laser beams,Laser beams,Laser excitation,Lenses,Measurement by laser beam,Methanol,methanol-hexane mixtures,mixtures,Nonlinear Spectroscopy,optical pumping,organic compounds,probe beam,pump beam,pure methanol,thermal inflection,Thermal lens,thermal lensing,Thermal lensing,time resolved spectra,time-resolved thermal lens technique,TL signal,Ultrafast Optics,wavelength 1560.0 nm,wavelength 780.0 nm}
}