Prof. Mohammad D. Al-Amri Profile

Prof. Mohammad D. Al-Amri

at King Abdulaziz City for Science and Technology

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Publications (8)

Proceedings Article | 22 February 2018 Presentation + Paper

Sub-wavelength microscopy with surface plasmons

Xiaodong Zeng, M. Al-Amri, M. Suhail Zubairy

Proceedings Volume 10548, 105480N (2018) https://doi.org/10.1117/12.2299172

KEYWORDS: Microscopy, Graphene, Plasmonics, Spatial frequencies, Plasmons, Surface plasmons

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Proceedings Article | 11 November 2016 Paper

Quantum teleportation without classical channel

M. Al Amri, Zheng-Hong Li, M. Suhail Zubairy

Proceedings Volume 10150, 101501N (2016) https://doi.org/10.1117/12.2267245

KEYWORDS: Superposition, Chemical species, Teleportation, Sensors, Photon polarization, Quantum communications, Process control, Particles, Polarization, Quantum physics

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Proceedings Article | 26 September 2013 Paper

Protecting quantum entanglement from amplitude damping

Zeyang Liao, M. Al-Amri, M. Suhail Zubairy

Proceedings Volume 8875, 887506 (2013) https://doi.org/10.1117/12.2023241

KEYWORDS: Quantum communications, Quantum information, Quantum computing, Quantum physics, Physics, Neodymium, Solids, Francium, Astronomy, Environmental sensing

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Proceedings Article | 26 September 2013 Paper

Atom lithography with subwavelength resolution

M. Suhail Zubairy, Zeyang Liao, M. Al-Amri

Proceedings Volume 8875, 887504 (2013) https://doi.org/10.1117/12.2023234

KEYWORDS: Chemical species, Lithography, Collimation, Photoresist materials, Rubidium, Microwave radiation, Diffraction, Optical pumping, Doppler effect, Ions

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Proceedings Article | 6 March 2013 Paper

Wide band optical switch via quantum interference

Jingping Xu, M. Al-Amri, M. Suhail Zubairy

Proceedings Volume 8636, 86361F (2013) https://doi.org/10.1117/12.2013165

KEYWORDS: Optical switching, Mirrors, Reflectivity, Electromagnetism, Transparency, Chemical species, Physics, Q switching, Solids, Quantum physics

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Proceedings Article | 15 October 2012 Paper

Subwavelength photolithography and microscopy

Zeyang Liao, M. Al-Amri, M. Suhail Zubairy

Proceedings Volume 8518, 851803 (2012) https://doi.org/10.1117/12.948435

KEYWORDS: Chemical species, Luminescence, Optical lithography, Microscopy, Molecules, Modulation, Lithography, Photoresist materials, Physics, Multiphoton microscopy

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Proceedings Article | 8 September 2006 Open Access

Modeling quantum optical processes, interference, and correlations in novel microstructures

S. Skipsey, M. Babiker, M. Al-Amri, G. Juzeliunas

Proceedings Volume 6328, 63280U (2006) https://doi.org/10.1117/12.679007

KEYWORDS: Dielectrics, Electromagnetism, Process modeling, Quantum dots, Process control, Quantum information processing, Mirrors, Metals, Interfaces, Quantum optics

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The properties of localised dipole emitters in the form of a quantum dot or a colour centre embedded in a crystal environment can be drastically modified by a change in the composition, size and shape of the environment in which the emitter is embedded. Thanks to recent advances in material deposition techniques and lithography, as well as the advances in detection techniques and optical manipulation, experimental work is now capable of revealing a new range of physical phenomena when the typical dimensions are of the order of an optical dipole transition wavelength and below. These advances have arisen at a time of a heightened research effort devoted to the important goal of identifying a qubit and a suitable environment that forms the basis for a scalable hardware architecture for the practical realisation of quantum information processing. A physical system that we have recently put forward as a candidate for such a purpose involves localised emitters in the form of quantum dots or colour centres embedded in a nanocrystal. This suggestion became more persuasive following the success of experiments which, for the first time, were able to demonstrate quantum cryptography using a nitrogen vacancy in a diamond nanocrystal as a single-photon source. It has, however, been realised that a more versatile scenario could be achieved by making use of the interplay between dielectric cavity confinement and dipole orientation. Besides position dependence the main properties exhibit strong dipole orientational dependece suggesting that the system is a possible candidate as a qubit for a scalable hardward architecture for quantum information processing. Cavity confinement can control processes since it can lead to the enhancement and the complete suppression of the de-excitation process, with further control provided by the manipulation of the dipole orientation by optical means. This article is concerned with the modelling of quantum processes for quantum systems localised in artificially fabricated structures made of high conductivity metals and dielectric cavities. The essential features of cavity field confinement in this context are presented and the effects on de-excitation rates are assessed.

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Proceedings Article | 9 February 2006 Paper

Transient optical angular momentum effects and atom trapping in multiple twisted beams

D. Andrews, A. Carter, M. Babiker, M. Al-Amri

Proceedings Volume 6131, 613103 (2006) https://doi.org/10.1117/12.647412

KEYWORDS: Chemical species, Ions, Europium, Magnesium, Beam propagation method, Matrices, Chemical elements, Physics, Molecules, Laser applications

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