Dr. Preangka Roy
Assistant Professor

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    Email:

    preangka@phy.ku.ac.bd


    Contact:

    +8801335276835

    Address:

    Room No. 3479, Kobi Jibanananda Das academic building, Khulna University, Khulna-9208

    Research Gate


Dr. Preangka Roy completed her PhD in Advanced Photonics and Sensing Systems under the MEXT scholarship in Japan. Her research focuses on the advancement of laser systems, as well as real-time surface profilometry and tomography. During her doctoral studies, she developed a novel light source capable of performing surface profilometry using single-shot camera exposure.

Dr. Roy completed her B.Sc. (Hons.) in Physics in 2014 and her M.Sc. in Physics in 2016 from the Physics Discipline, Khulna University, Khulna, Bangladesh. She began her academic career as a Lecturer in the Physics Discipline at Khulna University in June 2017. After two years, she was promoted to Assistant Professor and has been serving in that position since July 2019. Dr. Roy received the Dean’s Award for outstanding academic performance in her M.Sc. degree, achieving a perfect GPA of 4.00 out of 4.00..

Ph.D. in Advanced photonics and sensing, Saitama University, Japan
M. Sc. in Physics (Thesis), Khulna University, Bangladesh
B. Sc. (Hons.) in Physics (Thesis), Khulna University, Bangladesh

Optical frequency comb, laser system improvement, discrete scanning laser source, precision measurement, surface profilometry and tomography measurement, laser interferometry

Current Research Project/Collaboration

SL Title Research Role Awarded Date Completion Date Funding Agency
No Research Project Available

  • July, 2019-onwards                                   Assistant Professor
  • Physics Discipline, Khulna University, Khulna
  • June, 2017-July, 2019                               Lecturer
  • Physics Discipline, Khulna University, Khulna

No Data Available

Supervision

SL Title Degree Role Start Date End Date
No Supervision Available

No Data Available

coming soon...

1.     Roy, P., Ariya, H., Hashimoto, Y., Bilkis, F., & Shioda, T. (2026). Dispersion-based interference fringe-order discrimination for long-range single-shot optical frequency comb interferometry. Applied Optics, 65(8), 2514. https://doi.org/10.1364/AO.586385

2.     Roy, P., Thai, B. D., Hashimoto, Y., Murazawa, S., Kanai, S., & Shioda, T. (2026). Sample integrated laser for optical thickness measurement using single-shot interferometry. Applied Optics, 65(1), 244. https://doi.org/10.1364/ao.577585

3.     Alam, M. K., Afsary, N., Sikder, M. S., Parvez, M. S., Roy, P., & Rasel, M. O. F. (2024). Near-infrared Y-branch polymer splitters realized with compact MMI structures for efficient power splitting. Optics Continuum, 3(3), 413–426. https://doi.org/10.1364/OPTCON.506248

4.     Roy, P. (2023). Review on High-Efficiency External Cavity Diode Laser for Pr3+Doped Fiber. International Journal of Research and Review, 10(12), 159–163. https://doi.org/10.52403/ijrr.20231219

5.     Roy, P. (2023). Acousto-Optic Deflector-Principles, Working and Applications. Int. J. Advanced Networking and Applications, 6126–6130. https://doi.org/10.35444/IJANA.2024.15508

6.     Roy, P., & Khan, H. R. (2023). Numerical Analysis of Bending and Microbending Losses in a Single Mode Step Index Optical Fiber. Journal Of Applied Physics (IOSR-JAP) e-ISSN, 15(2), 50–54. https://doi.org/10.9790/4861-1502025054

7.     Roy, P., R. Rahman, M., & R. Khan, H. (2019). Simulation Study of Waveguide and Chromatic Dispersion of a Single Mode Step Index Optical Fiber. International Journal of Advances in Scientific Research and Engineering, 05(01), 116–122. https://doi.org/10.31695/ijasre.2019.33055


Conference paper

 

1. P. Roy, B. D. Thai, Y. Hashimoto, S. Murazawa, S. Kanai, and T. Shioda,
“Sample integrated laser for optical thickness measurement using single-shot interferometry,” in Proc. 73rd JSAP Spring Meeting, 2026.

2. P. Roy, B. D. Thai, M. Nishiura, and T. Shioda, “Visible discrete frequency scanning laser source for interferometric applications,” in Proc. 73rd JSAP Spring Meeting, 2026.