Miles Padgett | |
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Born | Miles John Padgett 1 June 1963 [1] |
Nationality | British |
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Thesis | Techniques for ultra-high resolution saturation spectroscopy and laser stabilisation in the 10µm spectral region (1988) |
Doctoral students | Jacqueline Romero [6] |
Website | gla |
Miles John Padgett OBE FRS FRSE FInstP (born 1 June 1963 [1] [2] ) is a Royal Society Research Professor of Optics in the School of Physics and Astronomy at the University of Glasgow. [7] He has held the Kelvin Chair of Natural Philosophy since 2011 [5] [8] [9] [10] and served as Vice Principal for research at Glasgow from 2014 to 2020. [11] [12] [13] [14] [15]
Padgett was educated at the University of Manchester, the University of York, the University of St Andrews, and Trinity College, Cambridge, [2] where he was awarded a PhD in 1988.
Working with Les Allen, Padgett conducted pioneering work on optical angular momentum, [3] for which they were awarded 2009 the Young Medal. [4] The research group he leads is best known for its work on the fundamental properties of light's angular momentum, including optical tweezers and optical spanners, [16] the use of orbital angular momentum states to extend the alphabet of optical communication (with both classical and quantum light), and demonstrations of an angular form of the EPR paradox. [17] Padgett's research has been published in leading peer-reviewed scientific journals including Science , [18] [19] [20] [21] [22] Nature , [23] [24] Physical Review Letters , [3] and Optics Express [9] and Progress in Optics . [10] Padgett's research has been funded by the Engineering and Physical Sciences Research Council (EPSRC). [25]
Padgett was elected a Fellow of the Royal Society of Edinburgh (FRSE) in 2001, [26] in 2011 he was elected a Fellow of the Optical Society and in 2012 a Fellow of the Society of Photographic Instrumentation Engineers (SPIE). In 2014 he was elected a Fellow of the Royal Society (FRS) – the UK's National Academy of Science. [26] His nomination for the Royal Society reads:
Padgett is internationally recognised for his leadership in the field of optics and in particular of optical momentum. His best known contributions include an optical spanner for spinning micron-sized objects, use of orbital angular momentum to increase the data capacity of communication systems and an angular form of the Einstein-Podolsky-Rosen (EPR) quantum paradox. [7]
In 2009, with Les Allen, he won the Institute of Physics (IOP) Young Medal and in 2014 Padgett was awarded the Royal Society of Edinburgh's Lord Kelvin Medal. In 2015 he won the Science of Light Prize [27] from the European Physical Society [ citation needed ], in 2017 the Max Born Award [28] of The Optical Society (OSA) and in 2019 the Rumford Medal [29] of the Royal Society. Padgett is a Fellow of the Institute of Physics (FInstP). [1]
Padgett was appointed Officer of the Order of the British Empire (OBE) in the 2020 Birthday Honours for services to scientific research and outreach. [30]
Padgett currently[ when? ] resides in Glasgow with his wife Heather Reid [1] [31] [32] and their daughter, Jenna.
Adaptive optics (AO) is a technique of precisely deforming a mirror in order to compensate for light distortion. It is used in astronomical telescopes and laser communication systems to remove the effects of atmospheric distortion, in microscopy, optical fabrication and in retinal imaging systems to reduce optical aberrations. Adaptive optics works by measuring the distortions in a wavefront and compensating for them with a device that corrects those errors such as a deformable mirror or a liquid crystal array.
Optical tweezers are scientific instruments that use a highly focused laser beam to hold and move microscopic and sub-microscopic objects like atoms, nanoparticles and droplets, in a manner similar to tweezers. If the object is held in air or vacuum without additional support, it can be called optical levitation.
Optical coherence tomography (OCT) is an imaging technique that uses interferometry with short-coherence-length light to obtain micrometer-level depth resolution and uses transverse scanning of the light beam to form two- and three-dimensional images from light reflected from within biological tissue or other scattering media. Short-coherence-length light can be obtained using a superluminescent diode (SLD) with a broad spectral bandwidth or a broadly tunable laser with narrow linewidth. The first demonstration of OCT imaging was published by a team from MIT and Harvard Medical School in a 1991 article in the journal Science. The article introduced the term "OCT" to credit its derivation from optical coherence-domain reflectometry, in which the axial resolution is based on temporal coherence. The first demonstrations of in vivo OCT imaging quickly followed.
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The angular momentum of light is a vector quantity that expresses the amount of dynamical rotation present in the electromagnetic field of the light. While traveling approximately in a straight line, a beam of light can also be rotating around its own axis. This rotation, while not visible to the naked eye, can be revealed by the interaction of the light beam with matter.
The orbital angular momentum of light (OAM) is the component of angular momentum of a light beam that is dependent on the field spatial distribution, and not on the polarization. OAM can be split into two types. The internal OAM is an origin-independent angular momentum of a light beam that can be associated with a helical or twisted wavefront. The external OAM is the origin-dependent angular momentum that can be obtained as cross product of the light beam position and its total linear momentum.
Orbital angular momentum multiplexing is a physical layer method for multiplexing signals carried on electromagnetic waves using the orbital angular momentum (OAM) of the electromagnetic waves to distinguish between the different orthogonal signals.
The following table lists software packages with their own article on Wikipedia that are nominal EM (electromagnetic) simulators;
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Electrons in free space can carry quantized orbital angular momentum (OAM) projected along the direction of propagation. This orbital angular momentum corresponds to helical wavefronts, or, equivalently, a phase proportional to the azimuthal angle. Electron beams with quantized orbital angular momentum are also called electron vortex beams.
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Mary Jacquiline Romero is a quantum physicist in the Australian Research Council Centre of Excellence for Engineered Quantum Systems at the University of Queensland, Australia. Her research expertise and interests are in the field of quantum foundations and quantum information. In particular, Romero is an experimental quantum physicist studying the properties of single photons for the development of new quantum alphabets and the nature of quantum causality.
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