58³Ô¹Ï

Dr Sai Kiran Rajendran

Associate Lecturer

Research Fellow

Phone

+44 (0)1334 46 3725

Email

skr7@st-andrews.ac.uk

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Research areas

I am an Associate Lecturer and Research Fellow at the School of Physics and Astronomy, University of 58³Ô¹Ï. I deliver teaching activities through lectures, tutorials and laboratory demonstrations to students from undergraduate to doctoral level. My current research is focused on deveopling materials and devices for quantum technologies, working through the ‘Perovskite dipolaritons for room temperature quantum applications’ since January 2023 with Dr Hamid Ohadi. In 2022, I worked at the Institute of Photonics, University of Strathclyde on the EPSRC ‘Quantum enhanced multiphoton absorption for imaging’ with Dr Lucia Caspani. I worked on EPSRC Project Rydberg Polaritons in Cu2O microcavities () from November 2019 to December 2021 with Dr. Hamid Ohadi at the Quantum Light-Matter group. I was also a principal investigator to the Research Incentive Grant (RIG009823), from the Carnegie Trust for the Universities of Scotland, working on quantum confined Rydberg excitons of cuprous oxide in 2020-21. During the earlier period from November 2015 to 2019, I worked on the EPSRC project Hybrid Polaritonics () with Prof. Ifor Samuel and Prof. Graham Turnbull at the Organic Semiconductor Centre. In 2015, I worked at the Ultrafast spectroscopy group with Dr. Tersilla Virgili and Prof. Giulio Cerulllo at . Earlier I graduated in 2009 with Masters in Physics from , Anantapur, India. I then joined as an early stage researcher at the , Milan, Italy as part of the Marie Curie ITN-FP7-PEOPLE Project ICARUS () and obtained a Ph.D. degree in 2014.

My current interests involve fabrication and engineering semiconductorÌý materials towards understanding their properties using a wide range of spectroscopic studies for applications in optoelectronics and quantum technologies. Materials of interest areÌý inorganic semiconductors, perovskites, carbon nanotubes, plasmonic nanoparticles, liquid crystals,Ìý and a wide range of organic semiconductor materials. Fabrication techniques of interest are thermal evaporation, RF magnetron sputtering, spin coating, chemical vapour deposition and focused ion beam etching. Spectroscopy techniques of interest are ellipsometry, Raman spectroscopy, scanning electron microscopy, photoluminescence and amplified spontaneous emission, time-correlated single photon counting, streak camera, X-ray diffraction, Fourier imaging spectroscopy, interferometry, cryogenic spectroscopy, femtosecond transient absorption and 2D electronic spectroscopy.

Selected publications

• Open access
  Yang, L.-J., Xuan, W., Henda, S., Wang, S., Rajendran, S. K., Cordes, D. B., Miller, D. N., Slawin, A. M. Z., Krishnan Jagadamma, L., Ohadi, H., Chen, H.-Y. T., Dyer, M. S. & Payne, J. L., 1 Jul 2025, In: Nature Communications. 16, 14 p., 5549.

  Research output: Contribution to journal › Article › peer-review

• Open access
  Paul, A. S., Rajendran, S. K., Ziemkiewicz, D., Volz, T. & Ohadi, H., 11 Mar 2025, In: Communications Materials. 6, 1 p., 45.

  Research output: Contribution to journal › Comment/debate › peer-review

• Open access
  Balas, Y. C., Zhou, X., Cherotchenko, E., Kuznetsov, I., Rajendran, S. K., Paschos, G. G., Trifonov, A. V., Nalitov, A., Ohadi, H. & Savvidis, P. G., 27 Jun 2025, arXiv, 7 p.

  Research output: Working paper › Preprint

• Open access
  Paul, A. S., Rajendran, S. K., Ziemkiewicz, D., Volz, T. & Ohadi, H., 28 Mar 2024, In: Communications Materials. 5, 43, 8 p., 43.

  Research output: Contribution to journal › Article › peer-review

• Open access
  Makhonin, M., Delphan, A., Song, K. W., Walker, P., Isoniemi, T., Claronino, P., Orfanakis, K., Rajendran, S. K., Ohadi, H., Heckötter, J., Assmann, M., Bayer, M., Tartakovskii, A., Skolnick, M., Kyriienko, O. & Krizhanovskii, D., 6 Feb 2024, In: Light: Science & Applications. 13, 1, 9 p., 47.

  Research output: Contribution to journal › Article › peer-review

• Open access
  Orfanakis, K., Rajendran, S. K., Walther, V., Volz, T., Pohl, T. & Ohadi, H., Jul 2022, In: Nature Materials. 21, 7, p. 767–772

  Research output: Contribution to journal › Article › peer-review

• Open access
  Orfanakis, K., Rajendran, S. K., Ohadi, H., Zielińska-Raczyńska, S., Czajkowski, G., Karpiński, K. & Ziemkiewicz, D., 21 Jun 2021, In: Physical Review. B, Condensed matter and materials physics. 103, 24, 6 p., 245426 .

  Research output: Contribution to journal › Article › peer-review

• Open access
  Wei, M., Fang, M., Rajendran, S. K., Lai, W.-Y., Turnbull, G. A. & Samuel, I. D. W., 7 Jan 2021, In: Advanced Photonics Research. 2, 1, 7 p., 2000044.

  Research output: Contribution to journal › Article › peer-review

• Open access
  Ma, S., Wei, M., Rajendran, S. K., Karl, M., Xu, B., Gather, M. C., Tian, W., Turnbull, G. A. & Samuel, I. D. W., 17 Apr 2020, In: Advanced Optical Materials. 8, 8, 6 p., 1901785.

  Research output: Contribution to journal › Article › peer-review

• Orfanakis, K., Rajendran, S. K. & Ohadi, H., 24 Nov 2020, In: ArXiv e-prints. 8 p.

  Research output: Contribution to journal › Article

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