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- Mohammad Reza Mirhosseini, Omar S. Magaña-Loaiza, Changchen Chen, Brandon Rodenburg, Mehul Malik, Robert W. Boyd
- Optics express
- 2013

We report a technique for encoding both amplitude and phase variations onto a laser beam using a single digital micro-mirror device (DMD). Using this technique, we generate Laguerre-Gaussian and vortex orbital-angular-momentum (OAM) modes, along with modes in a set that is mutually unbiased with respect to the OAM basis. Additionally, we have demonstrated… (More)

- Mario Krenn, Johannes Handsteiner, +4 authors Anton Zeilinger
- Proceedings of the National Academy of Sciences…
- 2016

Spatial modes of light can potentially carry a vast amount of information, making them promising candidates for both classical and quantum communication. However, the distribution of such modes over large distances remains difficult. Intermodal coupling complicates their use with common fibers, whereas free-space transmission is thought to be strongly… (More)

- Mehul Malik, Pengke Li
- 2007

Polarization-entangled photon pairs are generated using crossed Beta Barium Borate crystals analogous to Dehlinger and Mitchell’s method. The polarization state of the entangled pairs is projected onto the basis of two polarizers introduced in the signal and idler arms. The cosine-squared dependance of the probability amplitude of the entangled state on the… (More)

Since its introduction 25 years ago, the quantum weak value has gradually transitioned from a theoretical curiosity to a practical laboratory tool. While its utility is apparent in the recent explosion of weak value experiments, its interpretation has historically been a subject of confusion. Here a pragmatic introduction to the weak value in terms of… (More)

- Mohammad Reza Mirhosseini, Mehul Malik, Zhimin Shi, Robert W. Boyd
- Nature communications
- 2013

Orbital angular momentum (OAM) of light is an attractive degree of freedom for fundamental studies in quantum mechanics. In addition, the discrete unbounded state-space of OAM has been used to enhance classical and quantum communications. Unambiguous measurement of OAM is a key part of all such experiments. However, state-of-the-art methods for separating… (More)

- Mehul Malik, Malcolm N O'Sullivan, +5 authors Robert W. Boyd
- Optics express
- 2012

We describe an experimental implementation of a free-space 11-dimensional communication system using orbital angular momentum (OAM) modes. This system has a maximum measured OAM channel capacity of 2.12 bits/photon. The effects of Kolmogorov thin-phase turbulence on the OAM channel capacity are quantified. We find that increasing the turbulence leads to a… (More)

- Sachin Nigam, Mehul Malik
- Journal of biomechanical engineering
- 1987

This paper is concerned with the modeling of the human body as a spring mass system. Based on certain assumptions, an analysis for evaluating the mass and stiffness values of the model is developed. As an illustration of the modeling procedure, a 15-degree-of-freedom model of a male body is considered. The computed natural frequencies of the model are found… (More)

- Robert W. Boyd, Anand K Jha, +7 authors C. M. Santori
- 2011

We describe a procedure to construct a free-space quantum key distribution system that can carry many bits of information per photon. We also describe the current status of our laboratory implementation of these plans.

- Brandon Rodenburg, Mohammad Reza Mirhosseini, +6 authors Robert W. Boyd

We describe a procedure by which a long (≳1 km) optical path through atmospheric turbulence can be experimentally simulated in a controlled fashion and scaled down to distances easily accessible in a laboratory setting. This procedure is then used to simulate a 1 km long free-space communication link in which information is encoded in orbital angular… (More)

- Malcolm N O'Sullivan, Mohammad Reza Mirhosseini, Mehul Malik, Robert W. Boyd
- Optics express
- 2012

We present a novel method for efficient sorting of photons prepared in states of orbital angular momentum (OAM) and angular position (ANG). A log-polar optical transform is used in combination with a holographic beam-splitting method to achieve better mode discrimination and reduced cross-talk than reported previously. Simulating this method for 7 modes, we… (More)