Patents
  1. An experimental technique for measuring radial coherence;  Radhika Prasad, Nilakshi Senapati, Suman Karan and Anand K Jha; Application No. 202411102457 ; In Process. [Filed on 24-December-2024].   

  2. Broadband uniform-efficiency orbital angular momentum detector for quantum technologies;  Suman Karan and Anand K Jha; Application No. 202411014104 ; Granted Indian Patent No. 551808 . [Filed on 27-February-2024]. [LINK]   

  3. Wavefront rotator with near-zero mean polarization change;  Suman Karan and Anand K Jha; Application No. 202411014104 ; Granted Indian Patent No. 557357 . [Filed on 27-February-2024]. [LINK]   
Preprints

Journal Publications
  1. Broadband uniform-efficiency OAM-mode detector;  S. Karan, M. P. van Exter, and A. K. Jha; Science Advances 11, eadq7201 (2025). [LINK]   

  2. Experimental technique for measuring radial coherence;  R. Prasad, N. Senapati, S. Karan, A. Bhattacharjee, B. Piccirillo, M. A. Alonso, and A. K. Jha; Optics Express 33, 11693-11701 (2025). [LINK]   

  3. Structured position-momentum-entangled two-photon fields;  R. Prasad, S. Wanare, S. Karan, M. K. Joshi, A. Bhattacharjee, and A. K. Jha; Physical Review Applied 22, 064034 (2024). [LINK]   

  4. Wavefront rotator with near-zero mean polarization change;  S. Karan, N. Senapati, and A. K. Jha; Applied Optics 63, 4552 (2024). [LINK]   

  5. Postselection-free controlled generation of a high-dimensional orbital-angular-momentum entangled state;  S. Karan, R. Prasad, and A. K. Jha; Physical Review Applied 20, 054027 (2023). [LINK]   

  6. Quantifying polarization changes induced by rotating Dove prisms and K-mirros;  S. Karan, Ruchi, P. Mohta, and A. K. Jha; Applied Optics 61, 8302 (2022). [LINK] - Selected as Editor's Pick

  7. Propagation-induced revival of entanglement in the angle-OAM bases; A. Bhattacharjee, M. K. Joshi, S. Karan, J. Leach, and A. K. Jha; Science Advances 8, eabn7876 (2022). [LINK]   

  8. Phase matching in β-barium borate crystals for spontaneous parametric down-conversion; S. Karan, S. Aarav, H. Bharadhwaj, L. Taneja, A. De, G. Kulkarni, N. Meher, and A. K. Jha; Journal of Optics 22, 083501 (2020). [LINK]

  9. Measurement of Pure States of Light in the Orbital-Angular-Momentum Basis Using Nine Multipixel Image Acquisitions; G. Kulkarni, S. Karan, and A. K. Jha; Phys. Rev. Applied 13, 054077 (2020). [LINK]
Conference Proceedings
  1. Broadband uniform-efficiency OAM detector; S. Karan, M. P. V. Exter, and A. K. Jha; Laser Science, JTu5A. 15. [LINK]