Nanophotonics Group @ IITK

Publications

Journal Publications

  1. N. Gupta, S. Das, S. Krishnamurthy, S. Krishnan, and Rituraj, “Two-photon absorption study with coupled mode formalism”, Journal of Physics: Photonics 7.3, 035010 (2025).
  2. O. S. Mane, Y. A. Bhat, S. Krishnamurthy, and Rituraj, “Programmable Mach–Zehnder Interferometer without bends for high density and integrated linear operation”, Journal of Physics: Photonics 7.3, 035002 (2025).
  3. S. Chowdhury, Rituraj, S. Krishnamurthy, and V. P. Bhallamudi, “Novel design paradigm for highly efficient and low noise photodetectors”, Journal of Physics: Photonics 7.2, 025029 (2025).
  4. A. M. Jamdar, Rituraj, S. Krishnamurthy, V. P. Bhallamudi, and S. Krishnan, “Wavelength-agnostic metasurface design for next-generation 2D photodetectors”, Optics Express 33(6), 13961-13971 (2025).
  5. Rituraj, Z.-G. Yu, R.M.E.B. Kandegedara, S. Fan, S. Krishnamurthy, “Highly sensitive and efficient 1550 nm photon detector for room temperature operation”, AIP advances 15(1) (2025).
  6. S. Chowdhury, Rituraj, Srini Krishnamurthy, and Vidya Praveen Bhallamudi. "Resonant structure for improved directionality and extraction of single photons." J. Phys. Photonics 7 015009 (2024).
  7. Rituraj, S. Fan, Z.-G. Yu, P. Boieriu, and S. Krishnamurthy, "Efficient biphoton emission in semiconductors by single-photon recycling", Physical Review A 107, 033521 (2023).
  8. J. Zhong, Rituraj, F. Dinc, and S. Fan, "Detecting the relative phase between different frequency components of a photon using a three-level Λ atom coupled to a waveguide", Physical Review A 107, L051702 (2023).
  9. V. Asadchy, A. G. Lamprianidis, G. Ptitcyn, M. Albooyeh, Rituraj, T. Karamanos, R. Alaee, S. A. Tretyakov, C. Rockstuhl, and Shanhui Fan, "Parametric Mie resonances for scattered light manipulation", Physics Review Applied 18(5), 054065 (2022).
  10. Lingling Fan, Zhexin Zhao, Rituraj, Weiliang Jin, Meir Orenstein, Shanhui Fan, “Lineshape study of optical force spectra on resonant structures”, Optics Express 30(4), 6142 (2022).
  11. Rituraj, Meir Orenstein, Shanhui Fan, “Photonic Chern insulators from two-dimensional atomic lattices interacting with a single surface plasmon polariton”, Physical Review B 103(12), 125423 (2021).
  12. Rituraj, Meir Orenstein, Shanhui Fan, “Interaction of two-dimensional atomic lattices with a single surface plasmon polariton”, Physical Review A 103(2), 023716 (2021).
  13. Rituraj, Meir Orenstein, Shanhui Fan, “Scattering of a single plasmon polariton by multiple atoms for in-plane control of light”, Nanophotonics 10(1), 579 (2021).
  14. Rituraj, Meir Orenstein, Shanhui Fan, “Two-level quantum system as a macroscopic scatterer for ultraconfined two-dimensional photonic modes”, Physical Review A 102(1), 013717 (2020).
  15. Rituraj, Peter B. Catrysse, Shanhui Fan, “Scattering of electromagnetic waves by cylinder inside uniaxial hyperbolic medium”, Optics Express 27(4), 3991 (2019).

Conference Proceedings and Invited Talks

  1. S. Chowdhury (presenter), Rituraj, S. Poudyal, S. Chatterjee, M. S. Ramachandra Rao, A. Misra, S. Krishnamurthy, V. Praveen Bhallamudi, “Design of low-photon flux detector using 2D materials”, SPIE Photonics West, San Francisco, USA, 2024.
  2. “Semiconductor-based quantum light sources”, Invited talk at International Workshop on the Physics of Semiconductor Devices 2023 (IWPSD), IIT Madras, India.
  3. Rituraj, Meir Orenstein, Shanhui Fan, "Photonic Chern insulators from two-dimensional atomic lattices interacting with a single surface plasmon polariton", Conference on Lasers and Electro-Optics (CLEO), 2022.
  4. "Semiconductor based single and entangled photon pair sources", Invited talk in Seminar on Space Quantum Frontiers, organized by Space Applications Center (SAC), ISRO, 2022.
  5. Rituraj, Meir Orenstein, Shanhui Fan, "Manipulating single surface plasmon polariton via tailored atom-photon interaction", Conference on Lasers and Electro-Optics (CLEO), 2021.
  6. Rituraj, "Scattering in structured photonic media for classical and quantum light manipulation", Invited talk at Recent Advancements in Organic & Nano Electronics-RAONE 2021, SRM Institute of Science and Technology, Chennai.
  7. Rituraj, Meir Orenstein, Shanhui Fan, "A two-level atom as a macroscopic scatterer for ultraconfined 2D surface plasmon polaritons", Frontiers in Optics (FiO), 2020.
  8. Rituraj, Peter B. Catrysse, Shanhui Fan, "Scattering of electromagnetic waves by cylinder inside uniaxial hyperbolic medium", SPIE Nanoscience + Engineering, San Diego, USA, 2019.