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  • Perumangatt, Chithrabhanu; Aadhi, A.; Reddy, Salla Gangi; Prabhakar, Shashi; Singh, R. P. (World Scientific Publishing, 2016-09)
    Using classical laser beams, we generate a general complex superposition state, cebit, of orbital angular momentum (OAM) of light. We use a nonseparable beam of polarization and OAM generated by a modified Sagnac interferometer ...
  • Perumangatt, Chithrabhanu; Lal, Nijil; Anwar, Ali; Reddy, Salla Gangi; Singh, R. P. (Elsevier, 2017-06)
    We address the possibility of using even/odd states of orbital angular momentum (OAM) of photons for the quantum information tasks. Single photon qubit states and two photon entangled states in even/odd basis of OAM are ...
  • Aadhi, A.; Prabhakar, Shashi; Singh, Ravindra P. (Elsevier, 2015-11)
    We experimentally show that the non-separability of polarization and orbital angular momentum present in a light beam remains preserved under scattering through a random medium like rotating ground glass. We verify this ...

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