Paresh Mathur

09 March 2026

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Education / Work History

• Engineer, TSMC (2016-present)
• M.Tech, Center for Lasers and Photonics (CELP), IIT Kanpur (2014-2016)
• U. V. Patel College of Engineering, Mehsana (2009-2013)

Thesis Abstract

Universal Approach Towards Self Calibration of Optical Tweezers and its Application as a Nanoprobe

In this work we propose a universal approach towards self calibration of optical tweezers using the normalized position autocorrelation function. It serves as an on the fly, computationally light and universal method towards calculating the conversion factor from arbitrary units to standard units without any prior calibration. By adding a known signal to the position of the particle in a trap the position data measured during the experiment itself can be used to calibrate the experiment. This is a significant improvement over the previously most used method which used the power spectrum of position measurements. Once calibrated we apply this universal approach to make a temperature measurement nanoprobe. Using the principal of equipartition of energy the temperature in the immediate surroundings of a trapped bead can be calculated by from its stochastic trajectory. As a proof of principle this nanoprobe is used to measure change in temperature of a dye mixed in water. The temperature trend was shown to follow the response of the dye to different average powers and central frequencies of a pulsed laser.

Research Topic / Interest

Contact me to know my current interests.

Publications

These include only those published in our lab.

1. Extracting Third Order Optical Nonlinearities of Mn(III)-Phthalocyanine Chloride Using High Repetition Rate Femtosecond Pulses. K. Makhal, P. Mathur, S. Maurya, and D. Goswami, Journal of Applied Physics 121(5), 053103 (2017) [BibTeX]

    BibTeX: @article{makhalExtractingThirdOrder2017,
     title = {Extracting Third Order Optical Nonlinearities of {{Mn}}({{III}})-{{Phthalocyanine}} Chloride Using High Repetition Rate Femtosecond Pulses},
     author = {Makhal, Krishnandu and Mathur, Paresh and Maurya, Sidharth and Goswami, Debabrata},
     year = {2017},
     month = feb,
     journal = {Journal of Applied Physics},
     volume = {121},
     number = {5},
     pages = {053103},
     issn = {0021-8979},
     doi = {10/gf5mrh},
     urldate = {2019-08-01},
     annotation = {GSCC: 0000012 \\
     12 citations (Crossref) [2024-05-28]\\
     00000}
   }
   

2. On-the-Fly Calibrated Measure and Remote Control of Temperature and Viscosity at Nanoscale. D. Mondal, S. N. Bandyopadhyay, P. Mathur, and D. Goswami, ACS Omega 3(9), 12304–12311 (2018) [BibTeX]

    BibTeX: @article{mondalOntheFlyCalibratedMeasure2018,
     title = {On-the-{{Fly Calibrated Measure}} and {{Remote Control}} of {{Temperature}} and {{Viscosity}} at {{Nanoscale}}},
     author = {Mondal, Dipankar and Bandyopadhyay, Soumendra Nath and Mathur, Paresh and Goswami, Debabrata},
     year = {2018},
     month = sep,
     journal = {ACS Omega},
     volume = {3},
     number = {9},
     pages = {12304--12311},
     issn = {2470-1343, 2470-1343},
     doi = {10/gff5s6},
     urldate = {2019-08-01},
     langid = {english},
     annotation = {GSCC: 0000004 \\
     4 citations (Crossref) [2024-05-28]\\
     00000}
   }
   

3. Precise Control and Measurement of Solid–Liquid Interfacial Temperature and Viscosity Using Dual-Beam Femtosecond Optical Tweezers in the Condensed Phase. D. Mondal, P. Mathur, and D. Goswami, Physical Chemistry Chemical Physics 18(37), 25823–25830 (2016) [BibTeX]

    BibTeX: @article{mondalPreciseControlMeasurement2016,
     title = {Precise Control and Measurement of Solid--Liquid Interfacial Temperature and Viscosity Using Dual-Beam Femtosecond Optical Tweezers in the Condensed Phase},
     author = {Mondal, Dipankar and Mathur, Paresh and Goswami, Debabrata},
     year = {2016},
     journal = {Physical Chemistry Chemical Physics},
     volume = {18},
     number = {37},
     pages = {25823--25830},
     doi = {10/gf5mr8},
     urldate = {2019-08-01},
     langid = {english},
     annotation = {GSCC: 0000011 \\
     9 citations (Crossref) [2024-05-28]\\
     00000}
   }
   

4. Extracting Third Order Optical Nonlinearities of Mn(III)-Phthalocyanine Chloride Using High Repetition Rate Femtosecond Pulses. K. Makhal, P. Mathur, S. Maurya, and D. Goswami, Journal of Applied Physics 121(5), 053103 (2017) [BibTeX]

    BibTeX: @article{makhalExtractingThirdOrder2018,
     title = {Extracting Third Order Optical Nonlinearities of {{Mn}}({{III}})-{{Phthalocyanine}} Chloride Using High Repetition Rate Femtosecond Pulses},
     author = {Makhal, Krishnandu and Mathur, Paresh and Maurya, Sidharth and Goswami, Debabrata},
     year = {2017},
     month = feb,
     journal = {Journal of Applied Physics},
     volume = {121},
     number = {5},
     pages = {053103},
     issn = {0021-8979},
     doi = {10/gf5mrh},
     urldate = {2019-08-01},
     annotation = {GSCC: 0000012 \\
     12 citations (Crossref) [2024-05-28]\\
     00000}
   }
   

5. On-the-Fly Calibrated Measure and Remote Control of Temperature and Viscosity at Nanoscale. D. Mondal, S. N. Bandyopadhyay, P. Mathur, and D. Goswami, ACS Omega 3(9), 12304–12311 (2018) [BibTeX]

    BibTeX: @article{mondalOntheFlyCalibratedMeasure2019,
     title = {On-the-{{Fly Calibrated Measure}} and {{Remote Control}} of {{Temperature}} and {{Viscosity}} at {{Nanoscale}}},
     author = {Mondal, Dipankar and Bandyopadhyay, Soumendra Nath and Mathur, Paresh and Goswami, Debabrata},
     year = {2018},
     month = sep,
     journal = {ACS Omega},
     volume = {3},
     number = {9},
     pages = {12304--12311},
     issn = {2470-1343, 2470-1343},
     doi = {10/gff5s6},
     urldate = {2019-08-01},
     langid = {english},
     annotation = {GSCC: 0000004 \\
     4 citations (Crossref) [2024-05-28]\\
     00000}
   }
   

6. Precise Control and Measurement of Solid–Liquid Interfacial Temperature and Viscosity Using Dual-Beam Femtosecond Optical Tweezers in the Condensed Phase. D. Mondal, P. Mathur, and D. Goswami, Physical Chemistry Chemical Physics 18(37), 25823–25830 (2016) [BibTeX]

    BibTeX: @article{mondalPreciseControlMeasurement2017,
     title = {Precise Control and Measurement of Solid--Liquid Interfacial Temperature and Viscosity Using Dual-Beam Femtosecond Optical Tweezers in the Condensed Phase},
     author = {Mondal, Dipankar and Mathur, Paresh and Goswami, Debabrata},
     year = {2016},
     journal = {Physical Chemistry Chemical Physics},
     volume = {18},
     number = {37},
     pages = {25823--25830},
     doi = {10/gf5mr8},
     urldate = {2019-08-01},
     langid = {english},
     annotation = {GSCC: 0000011 \\
     9 citations (Crossref) [2024-05-28]\\
     00000}
   }