188 citations · 412 across the 10 of their papers we have counts for
10 papers
Angular Lens
Rishabh Sahu, Swati Chaudhary, Kedar Khare +3
We propose a single phase-only optical element that transforms different orbital angular momentum (OAM) modes into localized spots at separated angular positions on a transverse pl…
Chiral symmetries associated with angular momentum
M. Bhattacharya, M. Kleinert
In beginning quantum mechanics courses, symmetries of a physical system are usually introduced as operators which commute with the Hamiltonian. In this article we will consider chi…
Mechanical memory for photons with orbital angular momentum
H. Shi, M. Bhattacharya
We propose to use an acoustic surface wave as a memory for a photon carrying orbital angular momentum. We clarify the physical mechanism that enables the transfer of information, d…
Ray transfer matrix for a spiral phase plate
M. Eggleston, T. Godat, E. Munro +3
We present a ray transfer matrix for a spiral phase plate. Using this matrix, we determine the stability of an optical resonator made of two spiral phase plates, and trace stable r…
Quantum mechanical study of a generic quadratically coupled optomechanical system
H. Shi, M. Bhattacharya
Typical optomechanical systems involving optical cavities and mechanical oscillators rely on a coupling that varies linearly with the oscillator displacement. However, recently a c…
Coupling a small torsional oscillator to large optical angular momentum
H. Shi, M. Bhattacharya
We propose a new configuration for realizing torsional optomechanics: an optically trapped windmill-shaped dielectric interacting with Laguerre-Gaussian cavity modes containing bot…
Optomechanical trapping and cooling of partially transparent mirrors
M. Bhattacharya, H. Uys, P. Meystre
We consider the radiative trapping and cooling of a partially transmitting mirror suspended inside an optical cavity, generalizing the case of a perfectly reflecting mirror previou…
Lattice with a Twist : Helical Waveguides for Ultracold Matter
M. Bhattacharya
We investigate the waveguiding properties of the optical interference pattern of two counter-propagating Laguerre-Gaussian beams. The number, helicity, radius, pitch, depth and fre…
Dynamics of rotating Bose-Einstein condensates probed by Bragg scattering
S. R. Muniz, D. S. Naik, M. Bhattacharya +1
Gaseous Bose-Einstein condensates (BECs) have become an important test bed for studying the dynamics of quantized vortices. In this work we use two-photon Doppler sensitive Bragg s…
Bragg Spectroscopy of Vortex Lattices in Bose-Einstein condensates
S. R. Muniz, D. S. Naik, C. Raman
We have measured the velocity field of a vortex lattice within a sodium Bose-Einstein condensate using Bragg scattering. The phase gradient of the macroscopic wavefunction was mapp…